128 results about "Plant design" patented technology

Esterification and transesterification of fats and oils is conducted using one or more heterogeneous solid catalysts in the presence of an alcohol and a cosolvent. In one example, esterification of free fatty acids in fats and oils feedstock is conducted by contacting the feedstock with a solid catalyst having acidic groups. Transesterification of triglycerides in the feedstock is conducted by contacting the feedstock with a solid catalyst having basic groups. Single train continuous plant designs are described for near complete conversion of fats and oils by sequentially contacting the feedstock with heterogeneous acidic solid catalyst and basic solid catalyst.

In an economical and efficient process and apparatus for producing biofuel from waste oil, such as vegetable oils and animal fats, waste oil is esterified with alcohols to produce alcohol esters and the by-products of the transesterification reaction are recovered. Static pressure may be used as well as continuous flow-through reaction vessels and separation tanks without the need for additional pumps. There may also be specialized reaction tanks that have vertical rotating feed tubes having separators and inlet and outlet openings. The method and device achieves efficient production of biofuel while employing reaction and mixing tanks having a limited size, which in turn permits a smaller plant layout or “footprint”. For example, the largest tank may be in a size of about 36 / 100,000 times the desired plant output in gallons per year. The benefits of the process and apparatus include minimal space for a plant; minimal on-site feedstock needed therefore minimal on-site storage is needed; minimal capital costs to build a plant e.g., reduction by about fifty to sixty five percent (50 to 65%); reduction in construction time from typically over one year to under three months in many plants; minimal energy usage, e.g., reduction by about sixty percent (60%); minimal labor costs due to the automatic continuous flow; minimal pumps needed thereby reducing pump operation and maintenance costs; environmentally friendlier and safer plant design; and due to smaller plant footprint, lower capital cost and minimal construction time enables site selection much nearer to the raw material supplies, thereby minimizing or even eliminating transportation costs for yellow grease or vegetable oil.

The invention discloses an optimizing method of an independent microgrid system which comprises diesel generators, a wind driven generator, a photovoltaic array and an energy storage battery. The optimizing method specifically comprises the steps of: considering a coordination control strategy among a combined starting mode of multiple diesel generators, the energy storage battery and the diesel generators on an optimizing plan designing model by an independent microgrid system-based multi-target optimizing design model to ensure that the utilization rate of renewable energy resources in the independent microgrid system is higher and the independent microgrid system is more economic and more environment-friendly in operation; aiming at the stability of the optimizing plant designing model of the system, considering the standby capacity of the stability demand of the independent microgrid system; and carrying out multi-target problem solving by adopting an NSGA-II (Nondominated Sorting Genetic Algorithm II)-based multi-target genetic algorithm on the basis of a solving algorithm of the optimizing plant design model so as to realize multi-target optimization of economy, reliability and environment friendliness of the independent microgrid system.

An exemplary method for the operation of a CCPP with flue gas recirculation to reduce NOx emissions and / or to increase the CO2 concentration in the flue gases to facilitate CO2 capture from the flue gases as well as a plant designed to operate is disclosed. To allow a high flue gas recirculation ration (rFRG) an imposed combustion inhomogeneity ratio (ri) is used for flame stabilization. The imposed combustion inhomogeneity ratio (ri) is controlled as function of the flue gas recirculation rate (rFRG) and / or combustion pressure. Oxygen or oxygen enriched air to the gas turbine inlet gases or to the combustor is admixed to enhance operatability.

The innovation herein proposed describes a plant to produce electricity by the sea waves. The plant is designed to be installed on shore, near shore and offshore scenarios: on the coast line, in shallow waters and in deep waters. The plant is operated by action of the sea waves on a series of floaters (A). The resultant force on each floater (A) acts on a mechanical load amplifier (B) which moves two vertical high pressure piston pumps (C). These pumps (C) send pressurized fresh water to a hyperbaric system (E). The hyperbaric system (E) supplies an outflow water jet through a controlled valve that moves a conventional turbine (G). This turbine (G) connected to the electric generator (H) produce electricity.

A design of a dual energy solar thermal power plant is proposed. It can be built on a piece of land where sunshine is abundant and the moisture in the air is relatively low. The desert corridor starting at Las Vegas and to the south is the best in the whole U.S. The power plant design is simple, using the equipment and material commonly available at reasonable costs. No particularly complicated equipment and material are required. The optimized plant size will be one MVA up to 300 MVA depending on the available land size in acres. The transmission line voltage can be from 13.8 kV up to 230 kV, depending on the MVA capacity. The land for a plant can be up to 600 acres.

A reformation power plant generates clean electricity from carbonaceous material and high pressure CO2 which can be easily sequestered or utilized for a beneficial purpose, such as fuel production. The reformation power plant design utilizes a reformation process that reforms carbonaceous fuel with super-heated steam into a high-pressure gaseous mixture that is rich in carbon dioxide and hydrogen gas. This high-pressure gas exchanges excess heat with the incoming steam from a boiler and continues onward to a condenser. Once cooled, the high-pressure gas goes through a methanol separator, after which the CO2-rich gas is sequestered underground or beneficially re-used. The remaining hydrogen-rich gas is combusted through a gas turbine. The gas turbine provides power to a generator and also regenerative heat for the boiler. Finally, the generator converts mechanical energy into electricity, which is transferred to the electric grid. Therefore, carbon-free electricity is generated from coal, biomass, or other carbon-based feedstock.

A reformation power plant generates clean electricity from carbonaceous material and high pressure CO2 which can be easily sequestered or utilized for a beneficial purpose, such as fuel production. The reformation power plant design utilizes a reformation process that reforms carbonaceous fuel with super-heated steam into a high-pressure gaseous mixture that is rich in carbon dioxide and hydrogen gas. This high-pressure gas exchanges excess heat with the incoming steam from a boiler and continues onward to a condenser. Once cooled, the high-pressure gas goes through a methanol separator, after which the CO2-rich gas is sequestered underground or beneficially re-used. The remaining hydrogen-rich gas is combusted through a gas turbine. The gas turbine provides power to a generator and also regenerative heat for the boiler. Finally, the generator converts mechanical energy into electricity, which is transferred to the electric grid. Therefore, carbon-free electricity is generated from coal, biomass, or other carbon-based feedstock.

A method for determining wind turbine location within a wind power plant based on at least one design criteria. A wind turbine layout including at least one wind turbine location is prepared and site conditions at each wind turbine location are determined. One or more plant design metrics are evaluated in response to the site conditions. The plant design metrics are analyzed in response to the site conditions. The method further includes applying constraints to the wind turbine layout and comparing the plant design metrics to the design criteria and constraints. Thereafter, the wind turbine locations are selectively adjusted within the layout in response to the comparing step until a stop criteria is reached.

Based on the discovered operating errors under all basic operating mode s for advanced boiling water reactor, a suitable quantification analytical model is employed to fast assess the risk situation for the discovered operating errors and quantified results are used to differentiate the risk rating for the operating errors. This is used to determine the necessity and urgency for the corrective measures to respond to the errors. The adopted quantification analytical model is the safety assessment (Probabilistic Risk Assessment, PRA) model for all basic operating mode s for advanced boiling water reactor, including power operation, low power operation and shutdown for major repairs. For the discovered operating error during power operation period, the invention uses the specifically developed safety assessment model for plant event, earthquake, flood and fire to determine risk effect for the discovered operating error on different event to manifest the risk characteristics for the discovered operating error and match the quantification results to existing plant design, operation and maintenance conditions.

The invention relates to an integrated rural sewage treatment plant. The integrated rural sewage treatment plant is characterized by comprising a sewage collecting pool, a biological treatment system and a sludge tank. The sewage collecting pool is communicating with a biological treatment system through a conveying water pump; the biological treatment system comprises an anoxic pond, an anaerobic pond, an aerobic pond, a secondary sedimentation tank, a disinfection tank and a sand filtering system that are arranged from left to right and communicating with each other; the sludge tank is arranged aside the anoxic pond and the anaerobic pond and connected with the secondary sedimentation tank through a gas stripping device. The invention has beneficial effect that collected rural household sewage is treated by the integrated rural sewage treatment plant, and outlet water reaches grade 1 A discharge standard specified in GB 18918-2002 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant. The integrated rural sewage treatment plant has advantages of stable performance, good treatment effect, small investment, small land occupation, simple operation, convenient management, long usage life and convenience for maintenance, etc., and is a whole set treatment plant designed specially according to water quality characteristics of rural household sewage.

The invention discloses a method for automatically and designing a pipeline of a power plant, which is used for automatic design of the pipeline in power plant design. According to the method for automatically and designing the pipeline of the power plant, by taking a three-dimensional design system and a two-dimensional data management system as the basis and a two-dimensional engineering system diagram of the pipeline as a data source, under the support of the KKs coding technique and a related master control program, a three-dimensional model diagram of the pipeline is automatically designed and generated. The method for automatically and designing the pipeline of the power plant comprises an information acquisition step, a pipeline data generating step, a three-dimensional model design step and an outputting step. By adopting the technical scheme provided by the invention, the automatic design can be realized on the three-dimensional diagram of the pipeline, and thereby, manpower and material resources are saved, and moreover, the correctness is increased.

The invention relates to improved bitumen recovery processes and systems. One process provides for operation of a bitumen froth treatment plant at optimum shear rates in the feed pipe carrying the bitumen froth to the froth settling unit. Another process provides for optimizing the design of a bitumen froth treatment plant by optimizing the diameter of the feed pipe to impart an optimum shear rate to the bitumen froth mixture and further optimizing the volume of the feed pipe to impart an optimum residence time for the bitumen froth stream in the feed pipe. An optimal plant design is also disclosed, the plant including optimal diameter and volume of the feed pipe.

A method for designing a cryogenic air separation plant wherein a particular plant which fits into a certain classification is designed by first employing at least one predesigned subsystem for that classification to form a base system and then completing the design by adding to the base system at least one auxiliary subsystem designed specifically for that particular plant.

An intelligent plant development library environment is presented. Contemplated environments comprise an EPC knowledge system capable of incorporating know-how of one or more construction firms in the form of assembly objects. Assembly objects represent construction components (e.g., bolts, cable trays, pipes, processing units, deliverables, etc.) that can be incorporated into a plant design. Assembly objects are stored in an assembly database and include available contexts considered relevant to the assembly objects. An inference engine is utilized to derive a specified context related to a plant design from one or more design tools. The inference engine applies rule sets to infer which assembly objects to instantiate as construction objects. The inference engine can further configure the design tools to incorporate the instantiated construction objects into a plant construction project model. Example rule sets include forward chaining rules, backward chaining rules, case-based reasoning rules, inductive reasoning rules, or abductive reasoning rules.

The invention relates to an automatic generation system of equipment name in the power plant design, in particular to an automatic generation system of a pipeline name in the power plant design. The system takes Auto CAD OID as a design platform, is based on the support of a KKS coding technology and correlative main control programs and comprises a CPU (1), an information call module (2), a recognition module (3) and a comparison module (4). Meanwhile, on the basis of the system, the invention also provides an automatic generation method of the pipeline name. By adopting the technical scheme, the automatic generation of the pipeline name can be realized, and the uniqueness of the generated name is ensured.

The invention provides a computer-assisted plotting method for waste heat boiler pipes. An arranged three-dimensional model can be directly transformed into a two-dimensional drawing for workshop production, and production efficiency can be improved. The computer-assisted plotting method is characterized in that the three-dimensional model is seamlessly integrated into a PDMS (plant design management system) platform by the aid of a program developed by a PML (printer management language), all information in the three-dimensional model is rapidly read, corresponding two-dimensional drawings pointed to by existing three-dimensional model information in a database and a symbol base are called, and the two-dimensional drawing directly used for workshop production is generated. The method specifically includes the steps: building a database of existing pipe fittings; building the part drawing symbol base of holes, welds, grooves, detailed drawings and nozzles of the existing pipe fittings; arranging pipes in a design platform and inputting relevant information as required; analyzing the obtained three-dimensional model information and automatically generating planar drawings.

The present invention provides a method for implementing a profession three-dimensional structure design in a plant design system platform. The method comprises: according to three-dimensional design requirements, customizing an information channel between development structure profession software and the design platform, and constructing a highway between a computational analysis model of a main body structure and a platform three-dimension model, thereby achieving a seamless connection between computational analysis software and SP3D; and customizing a developed parametric equipment foundation and related programs, thereby implementing automatic transmission among equipment information, a pipe frame load, the equipment foundation and a structural member, and implementing the profession three-dimensional structure design in the plant design system platform. With the method provided by the present invention, an operation mode of the profession three-dimensional structure design in the plant design system platform is preliminarily formed, thereby meeting not only design integration demands of full profession but also the requirements for building digital plants.

The invention relates to the field of plantation of sand-binding plants, in particular to a planting design method for planting a sand-binding plant community. The method is mainly applied to the eastern region of Inner Mongolia and serious desertification areas in the west of Liaoning province and Jilin province in China. In the design of the plant community, a woody plant Caragana microphylla, herbaceos perennial wheatgrass, dester wormwood, garcinia bark and Panicum miliaceum mubarak hassan shami are adopted; and in the design of the sand-binding plant community, the planting of Caragana microphylla is taken as a main framework, and the herbaceos perennial wheatgrass, the dester wormwood, the garcinia bark and the Panicum miliaceum mubarak hassan shami are planted so as to form the sand-binding plant community. By the method, the problems of serious waste of sand-binding plant seeds and the like in the prior art are solved; the better sand-binding effect is achieved by utilizing the reasonable combination of sand-binding plants; a method for planting plant communities is provided for the modern wind protection and sand fixation; and the method can be widely applied to the sand control and plant slope reinforcement work of highways and railways in northern areas in China.

A design of a dual energy solar thermal power plant is proposed. It can be built on a piece of land where sunshine is abundant and the moisture in the air is relatively low. The desert corridor starting at Las Vegas and to the south is the best in the whole U.S. The power plant design is simple, using the equipment and material commonly available at reasonable costs. No particularly complicated equipment and material are required. The optimized plant size will be one MVA up to 300 MVA depending on the available land size in acres. The transmission line voltage can be from 13.8 kV up to 230 kV, depending on the MVA capacity. The land for a plant can be up to 600 acres.

The invention discloses a drawing data conformity checking method based on a diagram topology structure, relating to the technical field of 3D plant design. The method comprises: S1: choosing a to-be-checked drawing; S2: checking for the conflicts independent of the topological relation; S3: reading-in drawing information and carrying out data abstraction if no conflict independent of the topological connection relation is found so as to form multiple abstract data structures according to the topological relation of the drawing; S4: carrying out conformity checking on the abstract data according to the abstract data structures, wherein the conformity checking includes topology structure conformity checking of the drawing; S5: displaying the check results; and S6: storing the check results. The invention ensures the conformity between an initially designed 2D process diagram and the 3D distribution pipe model diagram so as to greatly improve the plant design efficiency as well as reduce the workloads of project designers and problems during constructions due to the drawing mistakes.

A screening system designed to provide separation of multiple fractions of New Screens Fines. News Screens Fines (“NSF”) contain a mix of compressed, unmarketable recyclables that are generally less than four inches in size created as a by-product of current Material Recovery Facility (MRF) plant designs used to process single-stream recyclables. The NSF separation system uses a series of primary and secondary classification apparatus to separate materials into marketable products that meet legislative requirements. A series of screens, conveyors and air moving systems are designed to separate waste from fractions of glass, plastic and ferrous metals that can be sold.

Esterification and transesterification of fats and oils is conducted using one or more heterogeneous solid catalysts in the presence of an alcohol and a cosolvent. In one example, esterification of free fatty acids in fats and oils feedstock is conducted by contacting the feedstock with a solid catalyst having acidic groups. Transesterification of triglycerides in the feedstock is conducted by contacting the feedstock with a solid catalyst having basic groups. Single train continuous plant designs are described for near complete conversion of fats and oils by sequentially contacting the feedstock with heterogeneous acidic solid catalyst and basic solid catalyst.

Since CO2 is identified as a main greenhouse gas, its capture and storage is essential to control global warming. Flexible, optimized operation of CCPPs (combined cycle power plants) with a CO2 capture system (18) will increase the competitiveness of CCPPs designed for CO2 capture and will allow earlier introduction of this kind of plants. The main objective of the present invention is to provide a method for the optimized operation of a CCPP with flue gas recirculation and CO2 capture system (18) as well as a plant designed to operate according to this method. To this end a combination of two parameters to optimize the overall plant efficiency is proposed. These are CO2 concentration in the flue gases, and the re- cooling temperature of the recirculated flue gases. Additionally it is found to be advantageous to control the flue gas flow, which is sent to the CO2 capture system (18). These parameters are given as functions over load to optimize the overall plant efficiency including the CO2 capture system (18). Besides the method a power plant designed to operate according to this method is subject of the present invention. Further, admixing of oxygen or oxygen enriched air to the gas turbine inlet gases (3) to enhance operatability is proposed.

To provide an energy evaluation support system and the like which can more efficiently and precisely compute electric power consumption for each of predetermined processing units such as production steps and the like, the energy evaluation support system includes a receiving section which receives a factory design request including a production condition instruction indicating a production condition from the user, a storage section which stores a production device database containing data relating to production devices and a requisite-power supply device database containing data relating to requisite-power supply devices, a processing section which computes energy consumption for each of the production devices and the requisite-power supply devices and for each requisite power type, based on the production device database and requisite-power supply device database according to the factory design request from the user, and an output section which presents the energy consumption computed by the processing section to the user in a predetermined form.

Locally backwashing portions of filter media allows a simple and effective design of intake and pretreatment units, as well as their integration. An enclosure is used to limit portions of filter media and backwash them locally by suction, utilizing filtered water from adjacent filter media as the back wash water. Wastewater is produced at small amounts that allows efficient sludge treatment. This design enables water pretreatment at the intake unit, simplifying overall plant design and preventing damage to organisms living outside the intake unit.

A wastewater treatment system is provided that utilizes an equalization tank that stores hydraulic surge flows from the collection system and uses a waterwheel to transfer a maximum flow equal to plant design flow to the downstream treatment systems. The waterwheel aerates the raw wastewater in the equalization tank and prevents it from going septic and causing unacceptable odors. Because the waterwheel cannot transfer more than plant design flow to the downstream treatment elements, these elements will never experience a hydraulic overload.

A device even at the time of initial planning of plant design easily and rapidly generates three-dimensional arrangement adjustment CAD data which describes a route for arrangement of cable housing components. An area generation section 410 generates a prescribed rectangular parallelepiped area from the minimum and maximum coordinates. A cable information acquisition section 420 acquires information relating to cables such as cable specifications, starting point information, and end point information. A route generation section 430 generates a cable housing component route between a starting point area and an end point area through via areas. A route consolidation section 440 consolidate into a single route any route having the same cable specification, starting point information, via information, and end point information. A three-dimensional model conversion section 480 adds a prescribed width and height to the consolidated route to generate a three-dimensional cable housing component route model.

Computer method and apparatus for managing process and plant engineering data for chemical or other engineering processes across applications. The method and apparatus include a respective class view for each of multiple software applications, a composite class view, a conceptual data model and a resulting consolidated multi-tier data model. The multi-tier data model enables sharing of engineering and other data from the multiple software applications with other process and plant engineering applications and programs. An amalgamator synthesizes the class views, composite views and conceptual data model into the multi-tier data model. In forming the multi-tier data model, there is a one-to-one mapping between an attribute in the class view and composite class view, and a one-to-one mapping between an attribute in the composite class view and a data path in the conceptual data model to corresponding software applications from which the attribute originated.

A screening system designed to provide separation of multiple fractions of New Screens Fines. News Screens Fines (“NSF”) contain a mix of compressed, unmarketable recyclables that are generally less than four inches in size created as a by-product of current Material Recovery Facility (MRF) plant designs used to process single-stream recyclables. The NSF separation system uses a series of primary and secondary classification apparatus to separate materials into marketable products that meet legislative requirements. A series of screens, conveyors and air moving systems are designed to separate waste from fractions of glass, plastic and ferrous metals that can be sold.