190 results about "Carbon dioxide production" patented technology

A carbon sequestration and dry reforming process for the production of synthesis gas and sequestered carbon from carbon dioxide. Two-dimension catalysts for sequestering carbon and a process to produce same. A method for activating two dimension catalysts.

A carbon sequestration and dry reforming process for the production of synthesis gas and sequestered carbon from carbon dioxide. Two-dimension (non-porous) catalysts for sequestering carbon are also disclosed and a process to produce same as well as a method for activating two dimension catalysts.

The invention provides a method for restoring carbon dioxide to produce methane and acetic acid by utilizing a biological electrochemical system and regulating and controlling microorganism metabolites by utilizing cathodic polarization potential. A bio-cathode is prepared in the biological electrochemical system, carbon dioxide (CO2) is fed into a cathode chamber and an anode chamber to circularly aerate, the cathodic polarization potential is set from -850mV to -1150mV (vs.Ag / AgCl), and microorganism on a cathode can directly obtain electrons from electrodes or from hydrogen produced by the electrodes to restore the carbon dioxide and produce the methane and the acetic acid. The methane and the acetic acid which are microbial synthesis products can be regulated and controlled by setting different cathodic polarization potentials. The electrodes do not need to use expensive catalyst, and are low in cost. The method for restoring the carbon dioxide to produce the methane and the acetic acid by utilizing the biological electrochemical system is rapid in production rate of the methane and the acetic by restoring the carbon dioxide, and has important application prospect for fixedly converting the carbon dioxide and synthetizing organic chemicals.

A method of producing a carbon dioxide product stream from a synthesis gas stream formed within a hydrogen plant having a synthesis gas reactor, a water-gas shift reactor, located downstream of the synthesis gas reactor to form the synthesis gas stream and a hydrogen pressure swing adsorption unit to produce a hydrogen product recovered from the synthesis gas stream. In accordance with the method the carbon dioxide from the synthesis gas stream by separating the carbon dioxide from the synthesis gas stream in a vacuum pressure swing adsorption system, thereby to produce a hydrogen-rich synthesis gas stream and a crude carbon dioxide stream and then purifying the crude carbon dioxide stream by a sub-ambient temperature distillation process thereby to produce the carbon dioxide product. A hydrogen synthesis gas feed stream to the hydrogen pressure swing adsorption unit is formed at least in part from the hydrogen rich stream.

A downhole burner is used for producing heavy-oil formations. Hydrogen, oxygen, and steam are pumped by separate conduits to the burner, which burns at least part of the hydrogen and forces the combustion products out into the earth formation. The steam cools the burner and becomes superheated steam, which is injected along with the combustion products into the earth formation. Carbon dioxide is also pumped down the well and injected into the formation.

The present invention is directed to a method for utilizing CO2 waste comprising recovering carbon dioxide from an industrial process that produces a waste stream comprising carbon dioxide in an amount greater than an amount of carbon dioxide present in starting materials for the industrial process. The method further includes producing hydrogen using a renewable energy resource and producing a hydrocarbon material utilizing the produced hydrogen and the recovered carbon dioxide.

The present invention discloses trapping devices for biting (e.g. mosquitoes, sand flies, black flies, and biting midges) and nuisance flies (e.g. houseflies, filth flies, and fruit flies). The outdoor solution for biting flies includes a solar panel, a housing, a bag, and a ventilator located in the housing. The ventilator creates a capture zone having an airflow toward the bag. A CO2 generator, chemical attractants, a heat source, and a UV light attract mosquitoes to the capture zone. The chemical attractants are released continuously, the CO2 is released in pulses, and the ventilator and UV are operated in independent programmable intervals. The device is efficient in energy consumption and CO2 production. Other trapping devices are disclosed having a combination of insect-attracting mechanisms including a ventilator. Novel insect zappers including a ventilator are disclosed as well. Indoor and outdoor solutions for insects including biting and nuisance flies.

Disclosed is a method for making carbon nanotubes comprising (a) reducing a nickel containing catalyst with a reducing agent in a first reaction chamber, (b) contacting the nickel containing catalyst with carbon dioxide under conditions sufficient to produce a reaction product, (c) transferring the reaction product to a second reaction chamber, wherein the second reaction chamber comprises a Group VIII metal containing catalyst, and (d) contacting the Group VIII metal containing catalyst with the reaction product under conditions sufficient to produce carbon nanotubes, wherein the first and second reaction chambers are in flow connection during the transfer step (c), wherein the only source of carbon used to form the carbon nanotubes is from the carbon dioxide used in step (b), and wherein at least 20% of the carbon from the carbon dioxide used in step (b) is converted into carbon nanotubes.

The invention relates to a combined production device of hydrocarbon production through methanol dehydration and hydrogen and carbon dioxide production through methanol reforming, which is characterized in that methanol is utilized as raw materials to co-produce petroleum, liquefying gas, hydrogen and carbon dioxide; heat generated during hydrocarbon production through methanol dehydration is used for a methanol reforming process; water generated during the hydrocarbon production through the methanol dehydration is used for the methanol reforming process; hydrogen generated by reforming can be used for a thermoelectric device and the like, and generated carbon dioxide is recovered and can be used for producing products such as food grade carbon dioxide and the like. The raw material methanol has rich sources. Petroleum and liquefying gas products satisfy the standards of clean fuel and has large product market demands. The hydrogen generated by a methanol reforming device is used as fuel and can realize near zero carbon dioxide emission in a thermoelectricity generation process.

The present invention relates to an imidazole salt organic polymer catalyst, a preparation method and applications thereof, wherein an alkylene functionalized imidazole salt compound is subjected to self-polymerization or is subjected mixed polymerization with a cross-linking agent to form an imidazole salt organic polymer, a Lewis acid is added or is not added to the obtained imidazole salt organic polymer, and when the Lewis acid is added, the metal ions in the acid and the N and / or P in the organic polymer are subjected to coordination so as to obtain the imidazole salt organic polymer catalyst. According to the present invention, the catalyst can be used in fixed beds, slurry beds, tank reactors, trickle beds and other reactors; with the application of the catalyst of the present invention in the cyclic carbonate production reaction of epoxy compounds and carbon dioxide, the catalyst has high activity, the generated cyclic carbonate has good selectivity, and the applicability of the substrate is strong; and the catalyst has good stability, and the separation of the catalyst from the and the reactant and the product is simple and efficient.

A two-stage reaction process includes reacting gaseous carbon dioxide with a reducing agent to form carbon monoxide and water. At least a portion of the water is condensed to form a dry tail gas. The dry tail gas, with the possible addition of a reducing agent, reacts to convert at least a portion of the carbon monoxide to solid carbon and water. Other methods include reacting a feed gas mixture to form a reaction mixture, condensing water from the reaction mixture to form a dried reaction mixture, mixing the dried reaction mixture with a recirculating gas to form a catalytic converter feed gas mixture, flowing the catalytic converter feed gas mixture through a catalytic converter to form solid carbon and a tail gas mixture containing water, and flowing the tail gas mixture through a heat exchanger.

The present invention describes a process and catalysts for the conversion of a light hydrocarbon and carbon dioxide input stream into high quality syngas with the subsequent conversion of the syngas into fuels or chemicals. In one aspect, the present invention provides an efficient, solid solution catalyst for the production of a carbon containing gas from carbon dioxide and light hydrocarbons. The catalyst comprises a single transition metal, and the transition metal is nickel.

A process for urea production comprises a first process step in which ammonia (7) and carbon dioxide (6) are obtained, subjecting natural gas (1) to reforming treatments (12, 14), and a second step of urea (8a) production from such ammonia (7) and from carbon dioxide, through a formation of a solution comprising urea and ammonium carbamate in a urea synthesis reactor (20) and a subsequent decomposition of the ammonium carbamate and. urea recovery, the process comprises the steps of:—treating combustion smokes (5) comprising carbon dioxide with an aqueous solution (9a) comprising a part (7b) of such ammonia (7), obtaining an aqueous ammonium carbamate solution (9c);—supplying the solution (9c) thus obtained to the second process step.

Self-sustaining, self-contained systems and methods for producing biofuels and for producing biofuel feedstock from algae. The system is carbon neutral or may be carbon positive, fixing more carbon than it releases to the atmosphere. In various embodiments, the system may be coupled to an existing carbon dioxide producing process to reduce or completely eliminate carbon dioxide output, making the existing system carbon neutral, and providing valuable and tradable carbon credits. The system may also comprise modular tiles comprising a biomass sandwiched between two panels and use a combination of microbes, nutrients, water, and sunlight to generate biological hydrocarbon compounds that can be used in almost any type of engine.