A method of co-producing a carbon dioxide containing stream and a syngas stream, including, introducing a first high-pressure hydrocarbon containing stream and a first high-pressure oxygen containing stream into a syngas generator, thereby producing a high-pressure syngas stream, introducing a second high-pressure hydrocarbon containing stream and a second high-pressure oxygen containing stream into an oxy-combustion device, thereby producing a high-pressure carbon dioxide containing stream, and introducing the high-pressure carbon dioxide containing stream into a work expander, thereby generating work and a carbon dioxide containing stream.

A method of co-producing a carbon dioxide containing stream and a syngas stream, including introducing a high-pressure hydrocarbon containing stream and a high-pressure oxygen containing stream into a syngas generator, thereby producing a high-pressure syngas stream, introducing a low-pressure hydrocarbon containing stream and a low-pressure oxygen containing stream into an oxy-combustion device, thereby producing a low-pressure carbon dioxide containing stream, and introducing the low-pressure carbon dioxide containing stream into a waste het boiler, thereby producing steam, and introducing the steam into a work expander, thereby generating work and a carbon dioxide containing stream.

The present invention provides a process for preparing higher-value products from carbonaceous feedstocks. The process includes converting carbonaceous feedstock in a hydromethanation reactor to a methane-enriched raw product stream, converting the methane-enriched raw product stream to an ammonia synthesis feed gas, then converting the ammonia synthesis feed gas to higher-value products such as ammonia and urea.

The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel and a gas-conducting system for gases that occur in the production of pig iron and/or in the production of crude steel. According to the invention, the plant complex additionally has a chemical or biotechnological plant connected to the gas-conducting system and a plant for producing hydrogen. The plant for producing hydrogen is connected to the gas-conducting system by a hydrogen-carrying line. Also the subject of the invention is a method for operating the plant complex.

Process for the co-production of methanol and ammonia together with urea production 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. Carbon dioxide removal from flue gas from reforming section to convert partially or fully all ammonia into urea. Synergi of having methanol, ammonia and urea production to produce coating material for the urea production.

The present invention discloses a synthetic ammonia system for making hydrogen by electrolysis in a thermal power plant includes an electrolytic hydrogen making device and a synthetic ammonia equipment; a power input end of the electrolytic hydrogen making device is electrically connected with a power generation output end of the thermal power plant; a hydrogen output end of the electrolysis hydrogen making device is connected with a hydrogen inlet of the synthetic ammonia equipment, a nitrogen inlet of the synthetic ammonia equipment is connected with a nitrogen source, the synthetic ammonia equipment is used for using the hydrogen produced by the electrolysis hydrogen making device and nitrogen of the nitrogen source to synthesize ammonia; an ammonia output end of the synthetic ammonia equipment is communicated to an ammonia supply pipeline and/or a liquid ammonia tank of the thermal power plant.

Process for the synthesis of ammonia from natural gas comprising conversion of a charge of desulphurized natural gas and steam, with oxygen-enriched air or oxygen, into a synthesis gas, and treatment of the synthesis gas with shift reaction and decarbonation, wherein a part of the CO2-depleted synthesis gas, obtained after decarbonation, is separated and used as fuel fraction for one or more furnaces of the conversion section, and the remaining part of the gas is used to produce ammonia.

The present invention discloses a synthetic ammonia system for making hydrogen by electrolysis in a thermal power plant includes an electrolytic hydrogen making device and a synthetic ammonia equipment; a power input end of the electrolytic hydrogen making device is electrically connected with a power generation output end of the thermal power plant; a hydrogen output end of the electrolysis hydrogen making device is connected with a hydrogen inlet of the synthetic ammonia equipment, a nitrogen inlet of the synthetic ammonia equipment is connected with a nitrogen source, the synthetic ammonia equipment is used for using the hydrogen produced by the electrolysis hydrogen making device and nitrogen of the nitrogen source to synthesize ammonia; an ammonia output end of the synthetic ammonia equipment is communicated to an ammonia supply pipeline and/or a liquid ammonia tank of the thermal power plant.

A process and plant for producing a makeup synthesis gas (20) for the synthesis of ammonia, comprising: reforming of a hydrocarbon feedstock (10) in a steam reformer (SMR), purification of said gas product obtaining a hydrogen synthesis gas, addition of a suitable amount of nitrogen (19) to said hydrogen synthesis gas, wherein said purification includes separation of hydrogen in a main separation unit (S1), which produces a hydrogen current (14) and a tail gas (15), and wherein further hydrogen is recovered from the said tail gas (15) in an additional separation unit (S2); some embodiments provides that an amount of gas product (24) is also fed to said additional separation unit; a corresponding method for the revamping of a front-end of an ammonia plant is also disclosed.

A process and a device for the production of ammonia at different pressure levels may involve removing gases that are inert (inert gases) or harmful with regard to ammonia synthesis from the process in a process step before the ammonia synthesis so that enrichment of these is decreased or suppressed. For example, with respect to a gas mixture that includes hydrogen, nitrogen, water, methane, carbon monoxide, and carbon dioxide, at least part of the water, at least part of the methane, at least part of the carbon monoxide, and at least part of the carbon dioxide may be removed from the gas mixture before the synthesis of the ammonia occurs.