Methods and systems for gas separation of syngas applying differences in water solubilities of syngas components, the method including producing a product gas comprising hydrogen and carbon dioxide from a hydrocarbon fuel source; separating hydrogen from the product gas to create a hydrogen product stream and a byproduct stream by solubilizing components in water that are more soluble in water than hydrogen; injecting the byproduct stream into a reservoir containing mafic rock; and allowing components of the byproduct stream to react in situ with components of the mafic rock to precipitate and store components of the byproduct stream in the reservoir.

A process for the manufacture of a useful product from synthesis gas having a desired hydrogen to carbon monoxide molar ratio comprises gasifying a first carbonaceous feedstock comprising waste materials and/or biomass in a gasification zone to produce a first synthesis gas; optionally partially oxidising the first synthesis gas in a partial oxidation zone to generate oxidised synthesis gas; reforming a second carbonaceous feedstock to produce a second synthesis gas, the second synthesis gas having a different hydrogen to carbon ratio from that of the first raw synthesis gas; combining at least a portion of the first synthesis gas and at least a portion of the second synthesis gas in an amount to achieve the desired hydrogen to carbon molar ratio and to generate a combined synthesis gas and subjecting at least part of the combined synthesis gas to a conversion process effective to produce the useful product.

The present disclosure details methods and systems for generating and recovering hydrogen from a depleted reservoir. The methods comprise several steps. Oxygen is introduced into a depleted reservoir. A fire flood is initiated, increasing temperature in the depleted reservoir and generating a gas mixture. The gas mixture is removed and transported to the surface. Energy is recovered from the gas mixture. Hydrogen is separated from the gas mixture, producing a depleted gas mixture and a hydrogen-rich gas mixture. The hydrogen-rich gas mixture is introduced into a subterranean storage formation.

The systems for generating and recovering hydrogen comprise a depleted reservoir comprising hydrocarbons, a subterranean storage formation where hydrogen gas is substantially present that is bounded on at least one side by an intermediate formation, a fluid pathway between the depleted reservoir and the subterranean storage formation, and a wellbore traversing the subterranean storage formation and the depleted reservoir.

The invention relates to a process for the production of hydrogen-enriched synthesis gas by a catalytic water-gas shift reaction, comprising the steps: introducing a gaseous flow (1) comprising at least one organic sulphide, optionally in its oxide form, in a first reactor (2) comprising a catalyst X.sub.1, collecting a sulfur-containing gaseous flow (3) from the first reactor, introducing the raw synthesis gas (4) in a second reactor (6), introducing the sulfur-containing gaseous flow (3) in the second reactor where the catalytic water-gas shift reaction takes place and comprising a sulfur-resistant shift catalyst X.sub.2, collecting an outlet flow (7) comprising hydrogen-enriched synthesis gas from the second reactor.

The invention also relates to the use of said at least one organic sulphide, optionally in its oxide form, in a process for the production of hydrogen-enriched synthesis gas by a catalytic water-gas shift reaction.

A plant for the co-production of methanol and ammonia from a hydrocarbon feed without venting to the atmosphere carbon dioxide captured from the methanol or ammonia synthesis gas and without using expensive air separation units and water gas shift.

A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.

The invention is directed to a process to prepare an activated carbon product and a gaseous fraction comprising hydrogen, carbon monoxide and a mixture of gaseous organic compounds from a solid torrefied biomass feed comprising the following steps. (i) subjecting the solid biomass feed to a pyrolysis reaction thereby obtaining a gaseous fraction comprising hydrogen, carbon monoxide and a mixture of gaseous organic compounds and a solid fraction comprising of char particles. (ii) separating the solids fraction from the gaseous fraction. and (iii) activating the char particles as obtained in step (ii) to obtain the activated carbon product.

A feedstock gas, such as natural gas, is introduced into a mixing chamber. A combustible gas is introduced into a combustion chamber, for example simultaneously to the introduction of the feedstock gas. Thereafter, the combustible gas is ignited so as to cause the combustible gas to flow into the mixing chamber via one or more fluid flow paths between the combustion chamber and the mixing chamber, and to mix with the feedstock gas. The mixing of the combustible gas with the feedstock gas causes one or more products to be produced.

A gasification process may include (a) introducing a liquid hydrocarbon feedstock and at least one of a dry feedstock or a first slurried feedstock into a reactor lower section, wherein the at least one dry feedstock or first slurried feedstock is introduced through two primary feed nozzles while the liquid hydrocarbon feedstock is introduced through at least two secondary feed nozzles; (b) partially combusting the feedstocks in the reactor lower section with a gas stream comprising an oxygen-containing gas or steam to evolve heat and form products comprising hot synthesis gas; (c) passing said hot synthesis gas from step (b) upward into a reactor upper section; (d) and introducing a second slurried feedstock into said reactor upper section, whereby heat from said hot synthesis gas supports reaction of the second slurried feedstock by pyrolysis and gasification reactions.

A process for converting a feed stream having carbon to C.sub.2 to C.sub.5 olefins, includes introducing a feed stream including methane and oxygen to a first reaction zone, reacting the methane and oxygen in the first reaction zone to form a first reaction zone product stream having a mixture of C.sub.2 to C.sub.5 alkanes, transporting the mixture of C.sub.2 to C.sub.5 alkanes to a second reaction zone, introducing a fresh stream of at least one of ethane and propane to the second reaction zone, converting the C.sub.2 to C.sub.5 alkanes to C.sub.2 to C.sub.5 olefins in the second reaction zone, producing one or more product streams in the second reaction zone, where a sum of the one or more product streams includes C.sub.2 to C.sub.5 olefins, and producing a recycle stream comprising hydrogen in the second reaction zone, where the recycle stream is transported to the first reaction zone.