Abstract:
In some implementations, one or more methods can include producing a hydrogen rich fuel gas for a gas turbine ballasted with nitrogen and steam and superheated to a temperature above its dew point. The fuel gas may have a minimal or reduced content of CO 2 or fuel components CO and CH 4 which contain carbon so that when combusted in a suitable gas turbine there may be minimal or reduced emissions of CO 2 to the atmosphere. These example methods may result in a capture of the bulk of the carbon present in the total natural gas feed as CO 2 compressed to pipeline delivery pressure for sequestration.
Abstract:
In some implementations, a system may include a compressor, a heat exchanger and an ITM. The compressor is configured to receive an air stream and compress the air stream to generate a pressurized stream. The heat exchanger is configured to receive the pressured stream and indirectly heat the pressurized stream using heat from an oxygen stream from an Ion Transport Membrane (ITM). The ITM is configured to receive the heated pressurized stream and generate an oxygen stream and the non-permeate stream, wherein the non-permeate stream is passed to a gas turbine burner and the oxygen stream is passed to the heat exchanger.
Abstract:
In some implementations, a system may include a compressor, a heat exchanger and an ITM. The compressor is configured to receive an air stream and compress the air stream to generate a pressurized stream. The heat exchanger is configured to receive the pressured stream and indirectly heat the pressurized stream using heat from an oxygen stream from an Ion Transport Membrane (ITM). The ITM is configured to receive the heated pressurized stream and generate an oxygen stream and the non-permeate stream, wherein the non-permeate stream is passed to a gas turbine burner and the oxygen stream is passed to the heat exchanger.
Abstract:
In some aspects, a method for incremental hydrogen production includes separating in a first Pressure Swing Absorption (PSA) system an existing reformer synthesis gas product stream into a first hydrogen stream and a first waste stream. The first waste stream is compressed to at least 40 bar to produce a compressed waste stream. Water is removed from the compressed waste stream to produce a dried waste stream. Carbon dioxide is removed from the dried waste stream to produce a remaining waste stream, and the removed carbon dioxide is at least 85% of carbon dioxide in the existing reformer synthesis gas product stream. A second PSA system separates the remaining waste stream into a second hydrogen stream and a second waste stream, and the second hydrogen stream comprises at least 11% of hydrogen from the existing reformer synthesis gas product stream. The second waste stream is passed to a reformer furnace as fuel gas.
Abstract:
A system and method for producing ammonia, comprising: a partial oxidation reactor (POX) or an autothermal reforming reactor (ATR) that exothermically reacts a first portion of a hydrocarbon feed stream; a gas -heated catalytic reformer (GHR) that endothermically reforms a second portion of the hydrocarbon feed stream with steam over a catalyst and combines the exothermically generated syngas product and the endothermically- reformed syngas product; a first heat exchanger that cools the combined syngas stream to produce steam in a heat recovery boiler; one or more shift conversion reactors that catalytically reacts the combined syngas stream; a second heat exchanger that cools the shifted stream; a scrubber that removes C02 from the shifted syngas stream; one or more pressure swing adsorption systems that generate a high pressure, substantially pure H2 stream from the C02 -depleted stream; and an ammonia reactor (20) that combines the high pressure, substantially pure H2 stream with (30) a high pressure, substantially pure N2 stream (40) to produce ammonia (50).
Abstract:
Methanol is produced (38) using a CO and H2 containing synthesis gas produced from a combined POX (4) plus EHTR (53) or a combined ATR plus EHTR at a pressure of 70bar to lOObar at the correct stoichiometric composition for methanol synthesis so that no feed gas compressor is required for the feed to the methanol synthesis reactor loop.
Abstract:
The GTLpetrol Process for Maximum H2 Production. The GTLpetrol process uses a proprietary combination of two stage pressure swing adsorption hydrogen purification plus a C02 condensation removal step to give H2 recoveries in the range of 95% to 98% based on H2 + CO from synthesis gas generation.
Abstract:
An integrated plant for the conversion of a hydrocarbon gas such as natural gas to useful hydrocarbon liquid fuels and feed-stocks comprises an H2+CO syn-gas generation system which provides feed gas to a Fischer-Tropsch catalytic hydrocarbon synthesis system with an associated power and heat energy system.
Abstract:
In some implementations, a method for separating components includes receiving off-gas from a Fischer-Tropsch hydrocarbon synthesis reaction process. The off-gas is scrubbed with a light oil at least proximate atmospheric temperature to substantially remove a mixture of C 3 and C 4 . The C 3 and C 4 are separated from the mixture into two separate streams using distillation columns in a Fischer-Tropsch system.
Abstract:
The process consists of a combination of a low temperature CO2 condensation separation step followed by either a physical or chemical solvent scrubbing process. The first step results in the partial pressure of CO2 in the gaseous steam being reduced to a value near the triple point pressure of CO2. Typically, the partial pressure of CO2 is reduced to the range 5.5 bar to 7.0 bar. The second stage process then removes the remaining CO2.