A fuel cell system for removing CO.sub.2 from anode exhaust gas includes a fuel cell having an anode that outputs anode exhaust including H.sub.2, CO, CO.sub.2, and water; a shift reactor that receives a first portion of the anode exhaust and performs a water-gas shift reaction to produce an output stream primarily including H.sub.2 and CO.sub.2; an anode gas oxidizer (AGO); and an absorption system including an absorber column that absorbs the CO.sub.2 from the output stream in a solvent and outputs a resultant gas including H.sub.2 and a hydrocarbon that is at least partially recycled to the anode, and a stripper column that regenerates the solvent and outputs a CO.sub.2-rich stream. The AGO is configured to oxidize at least a portion of the CO.sub.2-rich stream and an AGO input stream that includes one of a second portion of the anode exhaust or a portion of the output stream.

The present disclosure relates to a process plant and a process for production of a hydrogen rich gas, comprising the steps of (a) directing an amount of a synthesis gas comprising at least 15%, 50% or 80% on dry basis of CO and H.sub.2 in combination, a gas comprising steam, and a recycled intermediate product gas to be combined into a first reactor feed gas, (b) directing said first reactor feed gas to contact a first material catalytically active in water gas shift reaction, producing an intermediate product gas, (c) splitting said intermediate product gas in the recycled intermediate product gas and a remaining intermediate product gas, (d) combining said remaining intermediate product gas with a further amount of synthesis gas forming a second reactor feed gas, (e) directing said second reactor feed gas to contact a second material catalytically active in the water gas shift reaction, producing a product gas, characterized in the H.sub.2O:CO ratio in said first reactor feed gas being from 0.5 to 2.0 and the H.sub.2O:CO ratio in said second reactor feed gas being from 0.5 to 2.0. with the associated benefit of distributing the heat development and thus reducing the maximum temperature in the reactors by limiting the extent of reaction of the reacting mixture, and thereby reducing the amount of steam required for limiting methanation.

The present disclosure relates to a process plant and a process for production of a hydrogen rich gas, comprising the steps of (a) directing an amount of a synthesis gas comprising at least 15%, 50% or 80% on dry basis of CO and H.sub.2 in combination, a gas comprising steam, and a recycled intermediate product gas to be combined into a first reactor feed gas, (b) directing said first reactor feed gas to contact a first material catalytically active in water gas shift reaction, producing an intermediate product gas, (c) splitting said intermediate product gas in the recycled intermediate product gas and a remaining intermediate product gas, (d) combining said remaining intermediate product gas with a further amount of synthesis gas forming a second reactor feed gas, (e) directing said second reactor feed gas to contact a second material catalytically active in the water gas shift reaction, producing a product gas, characterized in the H.sub.2O:CO ratio in said first reactor feed gas being from 0.5 to 2.0 and the H.sub.2O:CO ratio in said second reactor feed gas being from 0.5 to 2.0. with the associated benefit of distributing the heat development and thus reducing the maximum temperature in the reactors by limiting the extent of reaction of the reacting mixture, and thereby reducing the amount of steam required for limiting methanation.

A method for enriching a synthesis gas in hydrogen is presented. The method includes adding H.sub.2O to the synthesis gas to form a synthesis gas stream that includes hydrogen, carbon monoxide, and steam. The synthesis gas stream has a steam to dry gas molar ratio, S/DG; and an oxygen to carbon molar ratio, O/C. The method includes introducing the synthesis gas stream into a water-gas shift reactor and reacting the synthesis gas stream in the water-gas shift reactor in the presence of a non-iron-based catalyst to produce a shifted synthesis gas. The method further includes controlling an outlet temperature of the synthesis gas stream to remain at or below a critical temperature or to drop to or below the critical temperature by adjusting the S/DG ratio to maintain the O/C ratio below a lower O/C limit or above an upper O/C limit.

A cell structure is provided that is (i) capable of handling, on inner and outer surfaces, heat transfer requirements of heat exchangers and/or be a substrate for coatings for catalytic reactors, (ii) able to be easily combined and interconnected into a variety of shapes, and (iii) may be created in an additive manufacturing process. The provided cell structure may be replicated and interconnected with other cell structures to create lattice structures in a variety of shapes. Accordingly, the cell structure may be used to build a heat exchanger or catalytic reactor that has reduced weight compared to traditional architectures.

The present technology relates to a heat exchange reactor (HER) system comprising a first gas feed and a heat exchange reactor, HER. The HER has two reaction zones; a first reaction zone (I) arranged to carry out an overall exothermic reaction of the first gas feed, and a second reaction zone (II) arranged to carry out an overall endothermic reaction of gas from said first reaction zone (I).

The present technology relates to a heat exchange reactor (HER) system comprising a first gas feed and a heat exchange reactor, HER. The HER has two reaction zones; a first reaction zone (I) arranged to carry out an overall exothermic reaction of the first gas feed, and a second reaction zone (II) arranged to carry out an overall endothermic reaction of gas from said first reaction zone (I).

Methods for repurposing thermal hydrocarbon recovery operations where the reservoir, which has been previously treated with steam for hydrocarbon mobilization, is further treated with an oxidizer to induce one or more of thermal cracking (thermolysis), gasification, water-gas shift, and aquathermolysis reactions to generate synthesis gas within the reservoir, which synthesis gas or its constituent components can then be produced to surface.

A cell structure is provided that is (i) capable of handling, on inner and outer surfaces, heat transfer requirements of heat exchangers and/or be a substrate for coatings for catalytic reactors, (ii) able to be easily combined and interconnected into a variety of shapes, and (iii) may be created in an additive manufacturing process. The provided cell structure may be replicated and interconnected with other cell structures to create lattice structures in a variety of shapes. Accordingly, the cell structure may be used to build a heat exchanger or catalytic reactor that has reduced weight compared to traditional architectures.

There is described a reforming unit for hydrogen production and a power generation device incorporating at least the reforming unit for generating electricity. The reforming unit generally has a catalytic burner defining a burner cavity; a reaction assembly within the burner cavity and in thermal communication therewith, the reaction assembly including; a reactor conduit extending annularly around an axis and axially between an input port and an output port, the input port being fluidly coupled to a wet fuel source supplying wet fuel, the reactor conduit having distributed therein a plurality of catalyst elements; and a syngas conduit extending along the axis, within the reactor conduit and in thermal communication therewith, the syngas conduit having an input port fluidly coupled to the output port of the reactor conduit, and an output port; the catalytic burner having a plurality of heating devices surrounding the burner cavity.