Abstract: A method of hydrogen production including producing a syngas stream in an SMR and removing CO2 and H2 from the syngas stream in a CO2 removal unit, thereby producing a residue fuel stream is provided. The method also includes blending the residue fuel stream with a make-up fuel stream, thereby producing a blended fuel stream, and heating the blended fuel stream, thereby producing a heated blended fuel stream. The method also includes blending the heated blended fuel stream with a steam stream, thereby producing a raw reformer fuel stream, and introducing the raw reformer fuel stream into a LP reformer, thereby producing a reformer fuel stream. The method also includes combusting the reformer fuel stream to the SMR, thereby producing a flue gas that is essentially free of CO2.

Abstract: A process for improving the thermodynamic efficiency of a hydrogen generation system is provided. This includes producing a syngas stream in a reformer, wherein the reformer has a combustion zone. This also includes introducing a syngas stream into a pressure swing adsorption unit, thereby producing a product hydrogen stream and a tail gas stream. This also includes heating the tail gas stream by indirect heat exchange with a heat source, thereby producing a heated tail gas stream; and introducing the heated tail gas stream into the combustion zone.

Abstract: A method of hydrogen and methane recovery from syngas from a gasifier is provided. Then directing a raw syngas stream from an acid gas removal system to a CO and methane removal system. Then returning the CO and methane stream to the gasifier, and exporting the hydrogen stream as a product. This method may include exchanging heat between a raw syngas stream from an acid gas removal system, a separated CO and methane stream, a separated hydrogen stream and a liquid nitrogen stream in a heat exchanger. Then directing the cooled raw syngas stream to a cryogenic Then returning the warmed separated CO and methane stream to the gasifier, and exporting the vaporized nitrogen stream as product.

Abstract: A method of high hydrogen recovery from syngas from a gasifier is provided. This method includes providing a syngas stream from the gasifier to first hydrogen separation device, wherein the first hydrogen separation device is a pressure swing adsorption device, thereby producing a first high purity hydrogen stream and a tailgas stream. This method also includes increasing the pressure of the tailgas stream in a first compressor; thereby producing a pressurized tailgas stream. This method also includes providing the pressurized tailgas stream to a second hydrogen separation device, thereby producing a second high purity hydrogen stream and a residue stream. This method also includes directing the residue stream to an auxiliary boiler, and combining the first high purity hydrogen product stream and the second high purity hydrogen product stream, thereby producing a high purity hydrogen product stream.

Abstract: The present invention provides a process for recovering gaseous hydrogen and gaseous carbon dioxide from a mixture of hydrocarbons by utilizing a system that includes a reformer unit, an optional water gas shift reactor, and a pressure swing adsorption unit in conjunction with a carbon dioxide purification unit such as a cryogenic purification unit or a catalytic oxidizer. In this process, purified CO2 from the CO2 purification unit is used as a co-feed/co-purge in the pressure swing adsorption unit in order to produce a CO2 tail gas that includes a higher concentration of CO2.

Abstract: The present invention relates to a process for purifying a CO2 rich gas stream in a catalytic oxidizer. In this process, flammable contaminants that are present in the CO2 rich gas stream are oxidized when the CO2 rich gas stream is injected along with a precisely measured amount of substantially pure oxygen into the catalytic oxidizer. As a result, a purified CO2 rich gas stream is produced which depending upon the amount of oxygen injected contains only minor traces of residual oxygen or minor traces of the flammable contaminants. This process is useful for purifying high-pressure residue streams from membrane water-gas shift reactors, membrane reformers, or sorbent enhanced reformers, where the pressurized CO2 rich gas stream also contains amounts of hydrogen, methane, and carbon monoxide. The process is also suitable for purifying CO2 permeate streams from reverse selectivity polymeric membranes that are used to separate CO2 from gas mixtures that contain CO2, H2 and CH4.

Abstract: A process for the recovery of CO2 from a flue gas is provided. This process includes compressing a flue gas to a first pressure, cooling the flue gas to a first temperature, and drying flue gas by a drying means. This process includes adsorbing CO2 in a first adsorbent bed, wherein the first adsorbent bed is isothermally maintained by a first cooling means. The process includes pressurizing the first adsorbent bed to a second pressure with CO2 at a second temperature, wherein the second pressure is greater than the initial pressure, wherein the second temperature is greater than the initial temperature. The process includes heating the first adsorbent bed to a third temperature with a first heating means, thereby increasing the first adsorbent bed to a third pressure, wherein the third temperature is greater than the second temperature, wherein the third pressure is greater than the second pressure, thereby releasing a first portion of adsorbed CO2.

Abstract: A high thermal efficiency process for hydrogen recovery is provided. The present invention includes combusting a first fuel stream to a reforming furnace, producing reforming heat and a hot exhaust stream. Then exchanging heat indirectly between the hot exhaust stream and a first feed water stream, producing a first steam stream. Then providing a hydrocarbon containing stream and a feed steam stream to the reforming furnace, utilizing the reforming heat and producing a hot raw syngas stream. Then exchanging heat indirectly between the hot raw syngas stream and second feedwater stream, producing a second steam stream and a cooled, raw syngas stream. Then introducing the cooled, raw syngas stream to a CO shift converter, producing a shifted syngas stream. Then introducing the shifted syngas stream into a pressure swing adsorption unit, producing a hydrogen product stream and a tail gas stream.

Abstract: Methods and systems for producing hydrogen are provided. In one embodiment, a method of producing hydrogen comprises reacting a feed source with steam to produce a gas mixture containing hydrogen and a residue gas; introducing the gas mixture into a purification unit; adsorbing the residue gas; and discharging at least a portion of the hydrogen. The method further comprises depressurizing the purification unit; discharging at least a portion of the residue gas during the depressurization; recycling the residue gas to the feed source; and discharging the residue gas remaining in the purification unit. In another embodiment, the method includes discharging a portion of the residue gas during the depressurization such that the residue gas discharged has a higher hydrocarbon content than the secondary product remaining in the purification unit.

Abstract: A method for recovering hydrogen from a gas stream is presented. This method includes introducing a feed gas stream comprising hydrogen and methane to a first cold box, thereby producing a first hydrogen-enriched stream, and a first methane-enriched stream; then introducing the first hydrogen-enriched stream to a first feed compressor, thereby producing a compressed first hydrogen-enriched stream. The method includes introducing the compressed first hydrogen-enriched stream to a second cold box, thereby producing a second hydrogen-enriched stream, and a second methane-enriched stream; then introducing the second hydrogen-enriched stream to a second feed compressor, thereby producing a compressed second hydrogen-enriched stream. The method includes introducing the compressed second hydrogen-enriched stream to a third cold box, thereby producing a third hydrogen-enriched stream, and a third methane-enriched stream.

Abstract: A method of hydrogenation of unsaturated hydrocarbons for syngas production is presented. A hydrogenation feed reactor stream is introduced into a hydrogenation reactor, thereby producing a reformer feed stream. The reformer feed stream is introduced into a reformer, thereby producing a crude syngas stream. The crude syngas stream is introduced into a water gas shift converter, thereby producing a hydrogen-rich stream. The hydrogen-rich stream is separated in a separation means, thereby producing a carbon dioxide-rich stream and a hydrogen product stream. At least a portion of the hydrogen product stream is combined with a refinery fuel gas stream, and a natural gas stream, to form the hydrogenation reactor feed stream.

Abstract: A process for the integration of power generation and an SMR, including introducing a combustion air stream into a compressor, thereby producing a compressed air stream. The compressed air stream is then introduced, along with a combustor feed gas stream into a first combustor, thereby producing a first exhaust gas stream. The first exhaust gas stream is then introduced into the shell-side of an SMR, thereby providing the heat for the reforming reaction, and generating a syngas stream and a second exhaust gas stream. The second exhaust gas stream is introduced, along with a secondary fuel stream, into a second combustor, thereby producing a third exhaust gas stream. The third exhaust gas stream is then introduced into an expander, thereby producing power output and a fourth exhaust gas stream.

Abstract: The invention concerns a method for producing synthetic gas on an industrial site comprising at least one gas turbine wherein the oxygen-containing gas produced by the gas turbine is upgraded in a combustion implemented on the industrial site or in a heat recovery unit of the industrial site. Preferably, the oxygen-containing gas is used as oxidant of the combustion thereby enabling the reaction for forming the syngas. The invention also concerns a method for controlling the introduction of the oxygen-containing required for combustion to enable the syngas to be formed into a syngas reactor and an associated device.

Abstract: A catalyst tube is provided, that includes a bore, wherein said bore is adapted to contain a catalyst bed. The catalyst tube also includes a proximal end, wherein said proximal end has a first inside diameter, a first outside diameter, and a first wall thickness. The catalyst tube also includes a distal end, wherein said distal end has a second inside diameter, a second outside diameter, and a second wall thickness. The catalyst tube may be tapered, with a uniform wall thickness. The catalyst tube may have a uniform outside diameter, with a tapered inside diameter, and a non-uniform wall thickness. The catalyst tube may have a tapered outside diameter, a uniform inside diameter, and non-uniform wall thickness.

Abstract: A process for recovering hydrogen from a multi-component gas stream is provided. This process includes compressing said multi-component gas stream, thereby creating a compressed multi-component gas stream. This process includes heating the compressed multi-component gas stream, thereby creating a heated compressed multi-component gas stream. This process also includes introducing steam into the heated compressed multi-component gas stream, thereby creating a first feed stream. This process further includes introducing the first feed stream into a CO shift conversion process, thereby creating a first intermediate stream. This process also includes introducing the first intermediate stream into an amine wash process, thereby creating a second intermediate stream and a carbon dioxide stream. This process also includes introducing the second intermediate stream into a methanation process, thereby creating a third intermediate stream.

Abstract: A gas stream containing at least about 90% (vol.) hydrogen and at least one halogen-containing compound is contacted with a nickel hydrogenation catalyst. When the gas stream contacts the hydrogenation catalyst substantially all halogen-containing compounds are dehalogenated.

Abstract: A gas stream containing at least about 90% (vol.) hydrogen and at least one halogen-containing compound is contacted with a nickel hydrogenation catalyst. When the gas stream contacts the hydrogenation catalyst substantially all halogen-containing compounds are dehalogenated.

Abstract: A process for the removal of carbon dioxide, hydrogen sulfide and alkyl mercaptans from a hydrocarbon-containing feed gas:(a) contacting the feed gas with an adsorbent capable of removing hydrogen sulfide and alkyl mercaptans from the feed gas at effective conditions to produce a treated gas having reduced concentrations of hydrogen sulfide alkyl mercaptans;(b) contacting the treated gas with a liquid medium capable of removing carbon dioxide hydrogen sulfide and alkyl mercaptans from the treated gas at effective conditions to produce a product gas having reduced concentrations of carbon dioxide hydrogen sulfide and alkyl mercaptans;(c) contacting a spent absorbent laden with hydrogen sulfide and alkyl mercaptans with a normally liquid fraction at effective desorption conditions to produce a regenerated adsorbent and a regeneration effluent having increased concentrations of hydrogen sulfide and alkyl mercaptans; and(d) utilizing the regenerated adsorbent as at least a portion of the adsorbent in step (a).

Abstract: The present invention is directed to an improved process for the removal of acid gases from gas mixtures which significantly decreases the consumption of heat needed for regenerating the rich alkaline scrubbing solution which is used to remove the acid gases from the gas mixtures. The process comprises passing one portion of the scrubbing solution through a steam stripping section and another portion of the scrubbing solution through a flashing section for regeneration wherein the overhead vapors from the steam stripping section are used to heat and strip the scrubbing solution in the flashing section and heat contained within the regenerated scrubbing solution coming from the steam stripping section is utilized to aid in the regeneration of the scrubbing solution in the flashing section.