Patent classifications
C01B2203/0405
Method of producing liquid fuel from carbonaceous feedstock through gasification and recycling of downstream products
A feedstock delivery system transfers a carbonaceous material, such as municipal solid waste, into a product gas generation system. The feedstock delivery system includes a splitter for splitting bulk carbonaceous material into a plurality of carbonaceous material streams. Each stream is processed using a weighing system for gauging the quantity of carbonaceous material, a densification system for forming plugs of carbonaceous material, a de-densification system for breaking up the plugs of carbonaceous material, and a gas and carbonaceous material mixing system for forming a carbonaceous material and gas mixture. A pressure of the mixing gas is reduced prior to mixing with the carbonaceous material, and the carbonaceous material to gas weight ratio is monitored. A transport assembly conveys the carbonaceous material and gas mixture to a first reactor where at least the carbonaceous material within the mixture is subject to thermochemical reactions to form the product gas.
Device and system for energy generation by controlled plasma ignition and incineration
A device and system for energy generation using plasma incineration and further, for producing electricity by hydrogen gas generation and combustion.
Systems and methods for processing gases
The invention includes a gas processing system for transforming a hydrocarbon-containing inflow gas into outflow gas products, where the system includes a gas delivery subsystem, a plasma reaction chamber, and a microwave subsystem, with the gas delivery subsystem in fluid communication with the plasma reaction chamber, so that the gas delivery subsystem directs the hydrocarbon-containing inflow gas into the plasma reaction chamber, and the microwave subsystem directs microwave energy into the plasma reaction chamber to energize the hydrocarbon-containing inflow gas, thereby forming a plasma in the plasma reaction chamber, which plasma effects the transformation of a hydrocarbon in the hydrocarbon-containing inflow gas into the outflow gas products, which comprise acetylene and hydrogen. The invention also includes methods for the use of the gas processing system.
Systems and methods for processing gases
The invention includes a gas processing system for transforming a hydrocarbon-containing inflow gas into outflow gas products, where the system includes a gas delivery subsystem, a plasma reaction chamber, and a microwave subsystem, with the gas delivery subsystem in fluid communication with the plasma reaction chamber, so that the gas delivery subsystem directs the hydrocarbon-containing inflow gas into the plasma reaction chamber, and the microwave subsystem directs microwave energy into the plasma reaction chamber to energize the hydrocarbon-containing inflow gas, thereby forming a plasma in the plasma reaction chamber, which plasma effects the transformation of a hydrocarbon in the hydrocarbon-containing inflow gas into the outflow gas products, which comprise acetylene and hydrogen. The invention also includes methods for the use of this gas processing system.
Catalyst and process for thermo-neutral reforming of petroleum-based liquid hydrocarbons
A process for producing a hydrogen-rich gas stream from a liquid hydrocarbon stream, the process comprising the steps of introducing the liquid hydrocarbon stream to a dual catalytic zone, the liquid hydrocarbon stream comprises liquid hydrocarbons selected from the group consisting of liquid petroleum gas (LPG), light naphtha, heavy naphtha, gasoline, kerosene, diesel, and combinations of the same, the dual catalytic zone comprises: a combustion zone comprising a seven component catalyst, and a steam reforming zone, the steam reforming zone comprising a steam reforming catalyst; introducing steam to the dual catalytic zone, introducing an oxygen-rich gas to the dual catalytic zone; contacting the liquid hydrocarbon stream, steam, and oxygen-rich gas with the seven component catalyst to produce a combustion zone fluid; and contacting the combustion zone fluid with the steam reforming catalyst to produce the hydrogen-rich gas stream, wherein the hydrogen-rich gas stream comprises hydrogen.
HYDROGEN AND/OR AMMONIA PRODUCTION PROCESS
Disclosed herein is a method of producing hydrogen, the method comprising: receiving a feed gas comprising hydrocarbons; performing one or more reforming processes on the feed gas so as to generate a reformed gas comprising hydrogen and carbon monoxide; performing a water-gas-shift process on the reformed gas so as to generate a shifted gas comprising hydrogen and carbon dioxide; performing a hydrogen separation process and a carbon dioxide separation process on the shifted gas to thereby generate separate streams of hydrogen, carbon dioxide and a rest gas; and the method further comprises recycling at least part of the rest gas by feeding at least part of the rest gas back into one or more of the one or more reforming processes, the water-gas-shift process, the hydrogen separation process and the carbon dioxide separation process; wherein the portion of the rest gas that is recycled is at least 50%, preferably at least 80%, and more preferably at least 90%.
PRODUCTION OF LOW OR NO CARBON INTENSITY HYDROGEN
A process for producing low or no carbon intensity hydrogen. In one embodiment, the process includes the step of pretreating a hydrocarbon gas stream. The pretreated hydrocarbon gas stream is fed into a reformer. The pretreated hydrocarbon gas steam is heated in the reformer to produce a synthesis gas stream and a flue gas stream. The flue gas stream is fed to a waste heat recovery section. Waste heat is recovered to increase the thermal efficiency of the process. The synthesis gas stream is fed to a shift gas reactor. Carbon monoxide from the synthesis gas stream in the shift gas reactor is converted to produce hydrogen and carbon dioxide. The carbon dioxide is separated from the synthesis gas stream and the hydrogen is separated. In another embodiment, the carbon dioxide is captured following the hydrogen separation. In another embodiment, the carbon dioxide is captured from the flue gas.
Process and plant for producing methanol from substoichiometric synthesis gas
Proposed is a process for producing methanol from synthesis gas by means of multi-stage, for example two-stage, heterogeneously catalyzed methanol synthesis, wherein the methanol product formed in every synthesis stage is separated by condensation and the remaining residual gas is supplied to the downstream synthesis stage or after separation of a purge stream recycled to the first synthesis stage as a recycle stream. According to the invention after each synthesis stage the residual gas streams have separated from them a respective purge stream, from which, using one or more hydrogen recovery apparatuses, hydrogen is separated and recycled to the first synthesis stage. The ratio of the individual purge streams and their total molar flow may optionally be varied to allow better control of the reaction in the individual synthesis stages and to allow reaction to the advancing deactivation of the catalysts present therein.
Method for increasing efficiency and reducing emissions in a steam reforming plant
A method for decreasing the SFFC of a steam reforming plant, including establishing a base operating mode. Then modifying the base operating mode by introducing the shift gas stream into a solvent based, non-cryogenic separator prior to introduction into the pressure swing adsorption and introducing the compressed hydrogen depleted off-gas stream in a membrane separation unit, wherein the membrane is configured to produce the hydrogen enriched permeate stream at a suitable pressure to allow the hydrogen enriched permeate stream to be combined with carbon dioxide lean shift gas stream, prior to introduction into the pressure swing adsorption unit without requiring additional compression. Thereby establishing a modified operating mode. Wherein said pressure swing adsorption unit has a modified overall hydrogen recovery. Wherein said modified operating mode has a modified hydrogen production, a modified hydrogen production unit firing duty, a modified SCO2e, and a modified SFFC.
Method for increasing efficiency and reducing emissions in a steam reforming plant
A method for decreasing the SFFC of a steam reforming plant, including establishing a base operating mode. Then modifying the base operating mode by introducing the shift gas stream into a solvent based, non-cryogenic separator prior to introduction into the pressure swing adsorption and introducing the compressed hydrogen depleted off-gas stream in a membrane separation unit, wherein the membrane is configured to produce the hydrogen enriched permeate stream at a suitable pressure to allow the hydrogen enriched permeate stream to be combined with carbon dioxide lean shift gas stream, prior to introduction into the pressure swing adsorption unit without requiring additional compression. Thereby establishing a modified operating mode. Wherein said pressure swing adsorption unit has a modified overall hydrogen recovery. Wherein said modified operating mode has a modified hydrogen production, a modified hydrogen production unit firing duty, a modified SCO2e, and a modified SFFC.