A water recovery system including a first fluid stream inlet providing for the flow of a first fluid stream, such as a humidified inlet gas, into the system and a second fluid stream inlet providing for the flow of a second fluid stream, such as a gas having a temperature greater than the humidified inlet gas, into the system. At least one contactor is in fluid communication with the first fluid stream inlet and the second fluid stream inlet. The at least one contactor defining therein a first fluidically-isolated, sorbent-integrated, fluid domain for flow of the first fluid stream and water adsorption, a second fluidically-isolated fluid domain for flow of the second fluid stream wherein the second fluidically-isolated fluid domain is in thermal communication with the first fluidically-isolated, sorbent-integrated, fluid domain and a third fluidically-isolated fluid domain for capture of a condensate and recycling of latent heat of condensation back to the first fluidically-isolated, sorbent-integrated, fluid domain.

The present invention provides a chemically stable catalyst for methane removal that exhibits excellent methane removal performance. The catalyst material for methane removal 30 of the invention includes a carrier 32 made of alumina and a catalyst 34 made of at least one of palladium and palladium oxide and carried directly on the carrier 32. With an exhaust gas purification catalyst test piece using this catalyst material for methane removal 30, a 50% methane removal temperature, which is an environmental temperature at which a methane removal rate reaches 50%, is not more than 347° C., based on the methane removal rate at 25° C. Furthermore, a specific surface area of the carrier 32 is preferably not more than 80 m.sup.2/g.

A method and system are provided to recover water and carbon dioxide from combustion emissions. The recovery includes, among other things, electrolysis and carbon dioxide capture in a suitable solvent. The recovered water and carbon dioxide are subject to reaction, such as a catalytic methanation reaction, to generate at least methane.

The present invention relates to a method of preparing a catalyst article comprising steps: (a) preparing a washcoat composition by combining at least the following components: a support material comprising a mixed oxide, a mixture of oxides or a molecular sieve comprising (i) alumina and (ii) silica and/or zirconia; a metal oxide sol comprising at least one of titania, silica or zirconia; a liquid medium; (b) applying the washcoat composition to a substrate to form a washcoating; and (c) drying and/or calcining the washcoating; wherein the method further comprises a step of impregnating the support material with a platinum group metal component. The prepared catalyst article may be suitable for the treatment of emissions from an internal combustion engine or a gas turbine, for example, the treatment of carbon monoxide and/or formaldehyde emissions from a natural gas fueled internal combustion engine or gas turbine.

A water recovery system including a first fluid stream inlet providing for the flow of a first fluid stream, such as a humidified inlet gas, into the system and a second fluid stream inlet providing for the flow of a second fluid stream, such as a gas having a temperature greater than the humidified inlet gas, into the system. At least one contactor is in fluid communication with the first fluid stream inlet and the second fluid stream inlet. The at least one contactor defining therein a first fluidically-isolated, sorbent-integrated, fluid domain for flow of the first fluid stream and water adsorption, a second fluidically-isolated fluid domain for flow of the second fluid stream wherein the second fluidically-isolated fluid domain is in thermal communication with the first fluidically-isolated, sorbent-integrated, fluid domain and a third fluidically-isolated fluid domain for capture of a condensate and recycling of latent heat of condensation back to the first fluidically-isolated, sorbent-integrated, fluid domain.

An oceanic offshore system and method for generating electric power which comprises a structure positioned at an offshore location. A power generating module is mounted on the structure, the power generating module including a turbine, an electric power generator coupled to the turbine, and a generating source of power fluid for the turbine resulting from the combustion of a fossil fuel. There is a capture system connected to the generating source for transferring carbon dioxide combustion gases to a subsea location for sequestration of CO.sub.2.

Devices, systems, and methods for power plant facilities are disclosed herein. A power plant facility includes a gas turbine; and a power generator that generates electricity from power supplied by the gas turbine. The power plant facility can also include at least one post-combustion capture unit that generates a CO2-rich stream from the combustion products of the gas turbine; and a sequestration compression unit that compresses and conveys at least one CO2-rich stream from a post-combustion capture unit, towards a sequestration site.

A three-way catalyst article, and its use in an exhaust system for compressed natural gas engines, is disclosed. The catalyst article for treating exhaust gas from compressed natural gas (CNG) engine comprising: a substrate comprising an inlet end, an outlet end with an axial length L; a first catalytic region beginning at the outlet end and extending for less than the axial length L, wherein the first catalytic region comprises a first PGM component; and a second catalytic region beginning at the inlet end, wherein the second catalytic region comprises a second PGM component; wherein the first PGM component comprises palladium, platinum, or a combination thereof; and wherein the second PGM component comprises rhodium.

A combustion device burns fuel ammonia in a combustion chamber using compressed combustion air, and includes a combustion air cooling unit which is configured to cool the combustion air by heat exchange with the fuel ammonia during or before a compression process.

The invention provides a process for preparing a methane oxidation catalyst, a methane oxidation catalyst thus prepared and a method of oxidizing methane.