Method and plant for generating a synthesis gas which consists mainly of carbon monoxide and hydrogen and has been freed of acid gases, proceeding from a hydrocarbonaceous fuel, and air and steam, wherein low-temperature fractionation separates air into an oxygen stream, a tail gas stream and a nitrogen stream, wherein the tail gas stream and the nitrogen stream are at ambient temperature and the nitrogen stream is at elevated pressure, wherein the hydrocarbonaceous fuel, having been mixed with the oxygen stream and steam at elevated temperature and elevated pressure, is converted to a synthesis gas by a method known to those skilled in the art, and wherein acid gas is subsequently separated therefrom by low-temperature absorption in an absorption column, wherein the nitrogen stream generated in the fractionation of air is passed through and simultaneously cooled in an expansion turbine and then used to cool either the absorbent or the coolant circulating in the coolant circuit of the compression refrigeration plant.

The present disclosure relates to an improved process for producing olefins from syngas. Raw material is treated to produce syngas comprising H.sub.2, CO and CO.sub.2. The ratio of H.sub.2 and CO in the syngas is 1:1. The syngas is contacted with at least one first catalyst to produce an intermediate stream comprising dimethyl ether (DME), and unconverted CO.sub.2, H.sub.2 and CO. The unconverted H.sub.2 and CO is recycled to a first catalyst section and a portion of the separated CO.sub.2 is recycled for producing the syngas. The remaining intermediate stream is contacted with at least one second catalyst to produce a second stream comprising olefins, H.sub.2O, methane, ethane, and propane. H.sub.2O, methane, ethane, and propane are separated to obtain the olefins. The separated methane, ethane, and propane are further recycled for producing the syngas. The CAPEX and OPEX of the improved process are reduced.

Systems, apparatuses and methods of utilizing a Fischer-Tropsch (FT) tail gas purge stream for recycling are disclosed. One or more methods include removing an FT tail gas purge stream from an FT tail gas produced by an FT reactor, treating the FT tail gas purge stream with steam in a water gas shift (WGS) reactor, having a WGS catalyst, to produce a shifted FT purge stream including carbon dioxide and hydrogen, and removing at least a portion of the carbon dioxide from the shifted FT purge stream, producing a carbon dioxide stream and a treated purge stream. Other embodiments are also disclosed.

A centrifugal blower system has internal gas mixing capability.

An integrated method for the production of liquefied natural gas (LNG) and syngas is provided. The method can include the steps of: utilizing letdown energy of a high pressure natural gas stream that is withdrawn from a natural gas pipeline to provide a warm temperature cooling; utilizing a refrigeration cycle to provide a cold temperature cooling, wherein the refrigeration cycle comprises a refrigerant recycle compressor that is powered utilizing a steam turbine; and cooling a second high pressure natural gas stream using the warm temperature cooling and the cold temperature cooling to produce an LNG product stream. The second high pressure natural gas stream is withdrawn from the natural gas pipeline, and the steam turbine is powered by high pressure steam that is produced from a syngas production facility.

The present disclosure relates to a flue gas exhaust system for an industrial furnace, especially a steam reforming furnace. The flue gas exhaust system comprises a stack having an inlet opening for introducing flue gas into the stack and an outlet opening for exhausting flue gas. The inlet opening of the stack is in fluid connection to an outlet of a heat recovery system of the industrial furnace. Further, the fluid connection between said heat recovery system outlet and said stack inlet opening comprises a transition flue gas duct that at least partly embraces a part of the stack.

A process for producing and purifying a synthesis gas stream that contains CO- and H.sub.2-produced from a hydrocarbon-containing feed in a gas production unit. CO.sub.2 is separated from the synthesis gas stream and CO is cryogenically separated from the synthesis gas stream. CO.sub.2 that makes up 5% to 30% by volume in the synthesis is reduced to less than 10 ppm by volume by temperature swing adsorption. The temperature swing adsorption takes place upstream of the cryogenic separation of CO. The CO.sub.2 is adsorbed using a disordered adsorbent bed wherein the adsorbent is cooled by means of indirect heat transfer from the adsorbent to the heat transfer medium during adsorption and the adsorbent loaded with CO.sub.2 is heated by indirect heat transfer from the heat transfer medium to the adsorbent to effect desorption of CO.sub.2.

A method for providing energy to commercial or industrial operations, such as greenhouses and algae farms, is provided. The method includes the step of recovering waste heat from a hydrogen production process, wherein the hydrogen product has a carbon intensity preferably less than about 1.0 kg CO.sub.2e/kg H.sub.2, more preferably less than about 0.45 kg CO.sub.2e/kg H.sub.2, and most preferably less than about 0.0 kg CO.sub.2e/kg H.sub.2. The hydrogen is preferably produced by converting a hydrocarbon feedstock to hydrogen through a reforming process, wherein at least some, and preferably substantially all, of the required energy for the hydrogen production process is provided from a biomass power plant. The method also includes the steps of processing one or more gas streams containing carbon dioxide from the biomass power plant and the hydrogen production process in one or more carbon capture unit to reduce CO.sub.2e emissions, and converting at least some of the waste heat to thermal energy for use in the commercial or industrial operations. The method further comprises the step of providing at least some, and preferably substantially all of the required energy for the commercial or industrial operations from the biomass power plant.

Nuclear energy integrated hydrocarbon operation systems include a well site having a subsurface hydrocarbon well configured to produce a produced water output. The system further includes a deployable nuclear reactor system configured to produce a heat output. The system may further include a deployable desalination unit configured to produce a desalinated water output using the produced water output of the subsurface hydrocarbon well and the heat output of the deployable nuclear reactor. The system may further include a deployable off-gas processing system configured to produce an industrial chemical using the off-gas output of the subsurface hydrocarbon well and the heat output of the deployable nuclear reactor.

A process for producing liquid hydrocarbon products from a biomass feedstock is provided. The process comprises:

contacting the feedstock with one or more hydropyrolysis catalyst compositions and molecular hydrogen to produce a product stream comprising hydropyrolysis product that is at least partially deoxygenated;

hydroconverting said hydropyrolysis product in the presence of one or more hydroconversion catalyst compositions to produce a vapour phase product comprising substantially fully deoxygenated hydrocarbon product,

wherein one or both of the hydropyrolysis catalyst composition and the hydroconversion catalyst composition is produced in a process comprising incorporating one or more metals selected from those of groups 6, 9, and 10 of the periodic table, into a shaped support; and incorporating one or more coordinating organic compounds into said shaped support, thus forming a catalyst precursor; and then either (i) treating the catalyst precursor in the presence of hydrogen and sulfiding it or (ii) calcining the catalyst precursor.