Patent classifications
C01B2203/148
PRODUCING HIGH PURITY HYDROGEN AND CARBON MONOXIDE FROM A HYDROCARBON MATERIAL
Disclosed are apparatuses, systems, methods, and devices for generating hydrogen pyrolysis of hydrocarbons (methane, diesel, JP8, etc.) in a reactor. The reactor includes multiple channels in parallel. A hydrocarbon flows in a channel and decomposes into hydrogen and carbon. Hydrogen gas flows out and some of the carbon will deposit on the channel wall. Once carbon deposition reaches a predetermined level, the hydrocarbon flow stops, and air or oxygen is caused to flow into the channels to oxidize carbon into carbon monoxide or carbon dioxide and supply heat to neighboring channels. Simultaneously, the hydrocarbon will flow into neighboring channels causing decomposition into hydrogen and carbon in the neighboring channels. When the carbon coating in the neighboring channels reaches a predetermined level, the gas flow is switched again to air or oxygen. In this way, each channel alternates between decomposing the hydrocarbon and oxidizing the deposited carbon.
PROCESS FOR THE INTEGRATED PRODUCTION OF H2 AND AVIATION KEROSENE FROM A RENEWABLE RAW MATERIAL
The present invention addresses to a process for the integrated production of H.sub.2 and aviation kerosene from renewable raw materials aiming at reducing CO.sub.2 emissions and consequently bringing benefits to reduce the impact of global warming on the planet. The process involves a hydrotreatment section to obtain n-paraffins followed by a hydroisomerization section to produce isoparaffins. The water and light hydrocarbons obtained in the isoparaffin production process are used for the production of H.sub.2 by the steam reforming process. An alcohol, such as ethanol or glycerin, with less than 6 carbon atoms, is fed into the hydrotreating section to make up the light hydrocarbon stream used in the production of renewable hydrogen.
Olefin production via dry reforming and olefin synthesis in a vessel
A system and method for producing olefin via dry reforming and olefin synthesis in the same vessel, including providing feed including methane and carbon dioxide to the vessel, converting methane and carbon dioxide in the vessel into syngas (that includes hydrogen and carbon monoxide) via dry reforming in the vessel, and cooling the syngas via a heat exchanger in the vessel. The method includes synthesizing olefin from the syngas in the vessel, wherein the olefin includes ethylene, propylene, or butene, or any combinations thereof.
Integrated process for producing BTX and hydrogen from shale gas with feeding of carbon dioxide
An integrated process is provided for producing benzene, toluene, and/or xylene and hydrogen from shale gas under the feeding of carbon dioxide. The integrated process for producing an aromatic compound and hydrogen can efficiently and continuously produce high value-added aromatic compounds and hydrogen without the need to separate methane from shale gas through cryogenic distillation.
Process and device for the combined production of hydrogen and carbon dioxide from a hydrocarbon mixture
The invention relates to a process for the combined production of hydrogen and carbon dioxide from a hydrocarbon mixture, in which the residual gas of a PSA H.sub.2 (12) is separated by permeation in order to reduce the hydrocarbon content thereof and the hydrocarbon-purified gas is separated at a low temperature to produce a carbon dioxide-rich liquid (22).
Plasma assisted distributed chemical production
The present development is a process to produce commodity chemicals such as methanol and syngas using an integrated plasma catalysis technology. The method comprises providing a fixed or fluidized bed reactor having a microwave plasma flame and a catalyst bed with a catalyst, wherein the catalyst is an alloyed bimetallic nanowire. In the process, the plasma flame fluidizes the catalyst thereby producing a more effective catalyst than the non-fluidized catalyst. It is anticipated that the reactor can have a throughput capacity of up to 30 Lpm/kW and can be effective for the conversion of CO.sub.2, CH.sub.4, air, water, and combinations thereof, through reactions such as pure CO.sub.2 splitting, reverse water gas shift (RWGS) for CO production, methanol synthesis, and plasma reforming of methane, thereby making a system that would be attractive for small GTL units.
Synthetic fuels by electrically heated steam methane reforming
A method for producing a synthesis gas for use in the production of a hydrocarbon product, particularly a synthetic fuel, the method including the steps of: providing a hydrocarbon feed gas; optionally, purifying the hydrocarbon feed gas in a gas purification unit; optionally, prereforming the hydrocarbon feed gas together with a steam feedstock in a prereforming unit; carrying out steam methane reforming in a reforming reactor heated by means of an electrical power source; providing the synthesis gas to a synthetic fuel synthesis unit, preferably a Fischer-Tropsch synthesis unit, for converting the synthesis gas into hydrocarbon product and producing a tail gas. Also, a system for producing a synthesis gas for use in the production of a hydrocarbon product, particularly a synthetic fuel.
STEAM METHANE REFORMING WITH STEAM REGENERATION
A hydrocarbon is reacted with water in the presence of a catalyst to form hydrogen, carbon monoxide, and carbon dioxide. Hydrogen is selectively allowed to pass through a hydrogen separation membrane to a permeate side of a reactor, while water and carbon-containing compounds remain in a retentate side of the reactor. An outlet stream is flowed from the retentate side to a heat exchanger. The outlet stream is cooled to form a cooled stream. The cooled stream is separated into a liquid phase and a vapor phase. The liquid phase is flowed to the heat exchanger and heated to form steam. The vapor phase is cooled to form condensed water and a first offgas stream. The first offgas stream is cooled to form condensed carbon dioxide and a second offgas stream. The steam and the second offgas stream are recycled to the reactor.
METHOD AND SYSTEM FOR CONVERTING NON-METHANE HYDROCARBONS TO RECOVER HYDROGEN GAS AND/OR METHANE GAS THEREFROM
The disclosure relates to methods, systems, and apparatus arranged and designed for converting non-methane hydrocarbon gases into multiple product gas streams including a predominately hydrogen gas stream and a predominately methane gas steam. Hydrocarbon gas streams are reformed, cracked, or converted into a synthesis gas stream and methane gas stream by receiving a volume of flare gas or other hydrocarbon liquid or gas feed, where the volume of hydrocarbon feed includes a volume of methane and volume of nonmethane hydrocarbons. The hydrogen contained in the syngas may be separated into a pure hydrogen gas stream. A corresponding gas conversion system can include a super heater to provide a hydrocarbon feed/steam mixture, a heavy hydrocarbon reactor for synthesis gas formation, and a hydrogen separator to recover the hydrogen portion of the synthesis gas.
PROCESS
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.