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32results about How to "Reducing greenhouse gas emission" patented technology

System and methods for improved emission control of internal combustion engines

The present invention provides systems and methods to improve the performance and emission control of internal combustion engines equipped with nitrogen oxides storage-reduction (“NSR”) emission control systems. The system generally includes a NSR catalyst, a fuel processor located upstream of the NSR catalyst, and at least one fuel injection port. The fuel processor converts a fuel into a reducing gas mixture comprising CO and H2. The reducing gas mixture is then fed into the NSR catalyst, where it regenerates the NSR adsorbent, reduces the NOx to nitrogen, and optionally periodically desulfates the NSR catalyst. The fuel processor generally includes one or more catalysts, which facilitate reactions such as combustion, partial oxidation, and / or reforming and help consume excess oxygen present in an engine exhaust stream. The methods of the present invention provide for NSR catalyst adsorbent regeneration. Control strategies are provided to control the system and methods of the invention.
Owner:INT ENGINE INTPROP CO LLC

Process for recovering paraxylene utilizing ammonia absorption refrigeration

A process for recovering paraxylene from a substantially hydrocarbon feedstock. The recovery .comprises cooling the hydrocarbon feedstock in at least one refrigerated crystallization stage that is indirectly refrigerated by evaporating at least a portion of a substantially liquid stream comprising ammonia. The crystallization stage may also be cooled by an ethylene refrigerant, which has been cooled by heat exchange with a substantially liquid stream comprising ammonia. The process further comprises a series of cooling substeps. This invention is also directed to an ammonia absorption refrigeration process powered by an enthalpy source from or near a paraxylene recovery unit.
Owner:BP CORP NORTH AMERICA INC

Soil treatments with greenhouse gas

The present invention relates to a method of facilitating reduction of greenhouse gas emissions. More particularly, the present invention relates to a method of combining greenhouse gas with a surfactant and applying the combination to soil whereby at least a portion of the greenhouse gas is sequestered in the soil or plant matter.
Owner:GREEN KNIGHT TECH

Heat Integration in a Hydrocarbon Processing Facility

A process is provided for improving energy efficiency and reducing greenhouse gas emissions in a hydrocarbon processing and / or production facility, through rearrangement of thermal energy distribution within said facility, said facility comprising a cracker unit with at least one apparatus for cracking a hydrocarbon containing feed, in presence of a dilution medium, wherein a cracked gaseous effluent exiting the apparatus is instantly cooled in a transfer line exchanger (TLE) while generating high-pressure steam, in which process any one of the: heating and / or vaporizing the hydrocarbon containing feed and / or the dilution medium, heating and / or vaporizing boiler feed water, and superheating high pressure steam generated in the TLE unit, is conducted in a heat recovery unit (HRU) arranged downstream the TLE, and which process comprises supplying electrical power into the hydrocarbon processing and / or production facility.
Owner:COOLBROOK

Rotating-Plate Radial Turbine in Gas-Turbine-Cycle Configurations

InactiveUS20100150713A1Huge cycle thermal efficiency improvementReducing greenhouse gas emissionPump componentsBlade accessoriesTurbine bladeAtkinson cycle
A novel power-producing concept is disclosed, employing a rotating-plate radial gas turbine in various gas-turbine cycle configurations. The “rotating-plate radial gas turbine” is a rotating barrel with robust rectangular plates fitted into the turbine rotor, performing the function and the role of turbine blades, contained within a motionless rigid horizontal cylinder (casing). Combustion can take place in the spaces confined between adjacent rotating plates and the static cylinder, thus enabling a practical achievement of the Atkinson cycle (constant-volume heat addition) with improved cycle thermal efficiency. Alternatively, two or more compressor stages can be combined to feed a single rotating-plate radial gas turbine in cascades, thus gradually increasing pressure of working gas within a volume bordered by adjacent un-cooled rotating plates of the radial gas turbine and the casing. Alternatively, a single compressor may be combined with one or more stages of an axial turbine for cascade feeding of a single rotating-plate radial gas turbine. This “isochoric stuffing” effect enables achievement of significantly and even drastically improved gas-turbine-cycle thermal efficiencies. Cycle heat addition may be either isobaric or isochoric in either an open-cycle or a closed-cycle configuration. Using a sufficiently efficient radial gas turbine, it is theoretically possible to obtain 100% cycle thermal efficiency in a simple radial-gas-turbine configuration with appropriately chosen compressor-stages compression pressure ratios.
Owner:STANKOVIC BRANKO

Method and device for fischer-tropsch synthesis

A method for Fischer-Tropsch synthesis, the method including: 1) gasifying a raw material to obtain a crude syngas including H2, CO and CO2; 2) electrolyzing a saturated NaCl solution using a chloralkali process to obtain a NaOH solution, H2 and H2; 3) removing the CO2 in the crude syngas using the NaOH solution obtained in 2) to obtain a pure syngas; and 4) insufflating the H2 obtained in 2) to the pure syngas to adjust a mole ratio of CO / H2 in the pure syngas, and then introducing the pure syngas for Fischer-Tropsch synthesis reaction. A device for Fischer-Tropsch synthesis includes a gasification device, an electrolyzer, a first gas washing device, and a Fischer-Tropsch synthesis reactor.
Owner:WUHAN KAIDI ENG TECH RES INST CO LTD

Process

The present invention provides a process for the manufacture of a useful product from carbonaceous feedstock of fluctuating compositional characteristics, the process comprising the steps of: continuously providing the carbonaceous feedstock of fluctuating compositional characteristics to a gasification zone; gasifying the carbonaceous feedstock in the gasification zone to obtain raw synthesis gas; sequentially removing ammoniacal, sulphurous and carbon dioxide impurities from the raw synthesis gas to form desulphurised gas and recovering carbon dioxide in substantially pure form; converting at least a portion of the desulphurised synthesis gas to a useful product. Despite having selected a more energy intensive sub-process i.e. physical absorption for removal of acid gas impurities, the overall power requirement of the facility is lower on account of lower steam requirements and thereby leading to a decrease in the carbon intensity score for the facility.
Owner:VELOCYS TECH
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