Abstract:
The present invention relates to an enhanced oil recovery process that is integrated with a synthesis gas generation process, such as gasification or reforming, and an air separation process for generating (i) an oxygen stream for use, for example, in the syngas process or a combustion process, and (ii) a nitrogen stream for EOR use.
Abstract:
A process and a related equipment for making ammonia make-up synthesis gas are disclosed, where: a hydrocarbon feedstock is reformed obtaining a raw ammonia make-up syngas stream; said raw syngas is purified in a cryogenic purification section refrigerated by a nitrogen-rich stream produced in an air separation unit; the nitrogen-rich stream at output of said cryogenic section is further used for adjusting the hydrogen/nitrogen ratio of the purified make-up syngas; an oxygen-rich stream is also produced in said air separation unit and is fed to the reforming section.
Abstract:
Procédé de production d'au moins un gaz pauvre en C02 et d'un ou plusieurs fluides primaires riches en C02 à partir d'un fluide à traiter comprenant du C02 et au moins un composé plus volatil que le C02, mettant en œuvre : a) un premier refroidissement dudit fluide à traiter par échange de chaleur sans changement d'état; b) un second refroidissement d'au moins une partie dudit fluide à traiter refroidi à l'étape a) de manière à obtenir au moins un solide comprenant majoritairement du C02 et au moins ledit gaz pauvre en C02; et c) une étape comprenant la liquéfaction et/ou la sublimation d'au moins une partie dudit solide et permettant d'obtenir lesdits un ou plusieurs fluides primaires riches en C02; ledit procédé étant caractérisé en ce que l'étape b) est réalisée dans au moins une turbine de détente, ledit solide se formant à l'intérieur de ladite turbine.
Abstract:
A process (10) for producing hydrocarbons from natural gas includes, in a cryogenic separation stage (16), cryogenically separating the natural gas to produce at least a methane stream and natural gas liquids, in a reforming stage (20), reforming the methane stream to produce a synthesis gas which includes at least CO and H2, and in a Fischer-Tropsch hydrocarbon synthesis stage (22), converting at least some of the CO and H2 into a Fischer-Tropsch product which includes hydrocarbons. A Fischer- Tropsch tail gas which includes at least CO and H2, methane and heavier than methane hydrocarbons, is separated from the Fischer-Tropsch product in a Fischer-Tropsch product separation stage (24). At least a portion of the Fischer-Tropsch tail gas is recycled to the cryogenic separation stage (16), where the Fischer-Tropsch tail gas is cryogenically separated into two or more streams.
Abstract:
This invention relates to a Fischer-Tropsch Plant for producing hydrocarbons and a method of the same. A Fischer-Tropsch plant comprises an air separation unit, a gasifier, a Fischer-Tropsch reactor as well as further downstream reactors and separators. Typically the air separation unit feeds oxygen to the gasifier. The Fischer-Tropsch plant of the present invention has an oxygen storage tank(s) to store oxygen and feed it to a gasifier should the normal supply of oxygen from the air separation units to the gasifier fail or reduce significantly. Thus the gasifier and all downstream reactors can be kept operating rather than affected in the event of such a restriction in the oxygen supply from the air separation unit.
Abstract:
L'invention concerne un procédé d'entraînement d'au moins une machine de compression (7, 8) d'une unité de distillation d'air (3) qui fournit de l'oxygène et/ou de l'azote et/ou de l'argon à une unité industrielle (1) produisant de la vapeur d'eau. En régime établi, la machine de compression est entraînée au moins en partie par une turbine à vapeur (13) alimentée par ladite vapeur d'eau, qui est introduite à une entrée (15) de la turbine. La turbine présente deux entrées (15, 16) qui correspondent à des pressions d'admission différentes. Pendant au moins une phase de fonctionnement de ladite unité (1), on alimente au moins partiellement la turbine par de la vapeur d'eau provenant d'une source de vapeur auxiliaire (21) et introduite à l'autre entrée (16) de la turbine. Application à l'alimentation en gaz de l'air d'une unité de production d'hydrocarbures synthétiques.
Abstract:
A process is described for generating hydrogen and carbon dioxide from a hydrocarbon feedstock. In some examples, the carbon dioxide is sequestered and/or used in a chemical process. In an example, the process comprises the steps of: (a) introducing (1) a fuel feed stream comprising a hydrocarbon feedstock, and (2) an first oxidant feed stream comprising at least 90 mole % oxygen to a non catalytic partial oxidation reactor unit (POx) for the production of synthesis gas wherein (i) the temperature of the fuel feed stream is in the range 100 to 7000C, and (ii) the molar ratio of oxygen contained in the first oxidant feed stream to carbon (in hydrocarbons) in the fuel feed stream is from 0.5 : 1 to 1.0: 1; (b) withdrawing a synthesis gas stream comprising hydrogen, carbon dioxide and carbon monoxide from the partial oxidation reactor unit and introducing the synthesis gas stream to a heat exchanger where heat generated in the partial oxidation reactor is used for the generation of steam and/or superheated steam; (c) withdrawing a cooled synthesis gas stream from the heat exchanger and introducing the cooled synthesis gas stream to a carbon oxides separation facility where it is separated into (1) a carbon oxides stream comprising carbon dioxide and carbon monoxide, and (2) a hydrogen stream comprising hydrogen and optionally nitrogen; (d) introducing the carbon oxides stream and a second oxidant feed stream comprising at least 90 mole% oxygen (based on the total moles of oxygen and of any nitrogen • in the second oxidant feed stream) to an oxycombustion boiler for the production of a carbon dioxide stream and using the heat generated by combustion of the carbon oxides stream in the boiler for the production of steam and/or superheated steam. The carbon dioxide stream and hydrogen stream may be exported from the process. The process may further include sequestering the carbon dioxide stream and/or using the carbon dioxide in a chemical process.
Abstract:
The invention relates to a method for obtaining a carbon monoxide (37) and a hydrogen product (16) by cryogenically decomposing a feed gas (1) predominantly composed of hydrogen (H2) and carbon monoxide (CO) in a two-stage condensation process, maximum coldness for the second condensation stage being generated by mixing an H2-rich fraction (43) with liquid nitrogen (M-N2) (38, 42). The invention also relates to a device for carrying out said method. At least some (G-N2) (42) of the M-N2 is produced from nitrogen (39) that is externally fed to the two-stage condensation process as a gas, by cooling, condensing, and, preferably, supercooling the same within the two-stage condensation process against process flows that are to be heated.
Abstract:
An integrated process for H 2 S-containing natural gas conversion comprising purification process which generates a HIS-rich gas stream and purified natural gas and an H 2 Sconversion process which generates energy, solid sulfur, and a sulfur-plant tail gas, and an energy- consuming natural gas conversion process selected from the group consisting of liquefaction of the purified natural gas to make LNG, synthesis gas production by partial oxidation of the purified natural gas with oxygen and combinations. A further additional improvement is made by using hydrogen to assist in further removal of sulfur from the sulfur-plant tail gas where the hydrogen is derived from one or more of several of locations in the natural gas conversion process. The synthesis gas is used to generate a range of products from different processes.
Abstract:
Gegenstand der Erfindung ist ein Verfahren zur Gewinnung eines Kohlenmonoxid- (37) und eines Wasserstoffproduktes (16) durch kryogene Zerlegung eines vorwiegend aus Wasserstoff (H 2 ) und Kohlenmonoxid (CO) bestehenden Einsatzgases (1) in einem zweistufigen Kondensationsprozess, wobei Spitzenkälte für die zweite Kondensationsstufe durch die Mischung einer H 2 -reichen Fraktion (43) mit flüssigem Stickstoff (M-N 2 ) (38, 42) erzeugt wird, sowie eine Vorrichtung zur Durchführung des Verfahrens. Zumindest ein Teil (G-N 2 ) (42) des M-N 2 wird aus gasförmig dem zweistufigen Kondensationsprozess von außen zugeführtem Stickstoff (39) durch Abkühlung, Kondensation und, vorzugsweise, Unterkühlung gegen anzuwärmende Verfahrensströme innerhalb des zweistufigen Kondensationsprozesses erzeugt.