Abstract: A method for producing a CO2-enriched gas from a feed gas comprising carbon dioxide (CO2), at least one component selected from H2, N2, CH4, CO, O2 and argon, water vapor, optionally impurities such as NOx and/or SOx , and a solid-particle concentration of between 0.01 and 100 mg/m3, wherein the feed gas is at least partially dried upstream of a PSA unit in order to prevent the solid particles from caking in the PSA unit is provided.

Abstract: A method of purifying or separating a gas using a number of adsorbers on phase-shifted cycles, and more particularly to the purification of atmospheric air, prior to cryogenic separation of the said air by cryogenic distillation is provided. More specifically still, it relates to the purification of air with a TSA cycle using radial adsorbers.

Abstract: The present invention relates to a process for manufacturing an agglomerate in the form of beads made up of microcapsules of a phase change material, the process comprising wet-granulation and fluidized-bed drying.

Abstract: The invention relates to a method for purifying a gas flow including at least a first compound selected from the compounds of a first group including water, ammonia, aromatics, alkane-, alkene-, or alkyne-type hydrocarbons containing at least 5 carbon atoms, aldehydes, ketones, halogen hydrocarbons, hydrogen sulfide, hydrogen chloride, and at least second and third compounds selected from the compounds of a second group including helium, hydrogen, nitrogen, oxygen, argon, carbon monoxide, carbon dioxide, hydrocarbons lower than C5, wherein said method comprises a variable-pressure adsorption implementing at least one main adsorber comprising at least one contactor having parallel passages, characterized in that said first compound is at least partially stopped upstream from said main adsorber.

Abstract: A method for purifying or separating a gas mixture comprising at least one fuel, using a unit having at least one adsorber subjected to a pressure cycle comprising at least one step of placing under vacuum by means of a vacuum pump, wherein at least one adsorber and/or the vacuum pump, depressurized during the cycle, is repressurized at least partly by an external gas to said unit and not containing a sufficient quantity of oxidizer to create an inflammable mixture during this repressurization.

Abstract: The present invention relates to a process for producing at least one CO2-lean gas and at least one CO2-rich fluid. In particular, it relates to a process for capturing dioxide in a fluid containing at least one compound more volatile than carbon dioxide such as, for example, methane CH4, oxygen O2, argon Ar, nitrogen N2, carbon monoxide CO, helium He and/or hydrogen H2.

Abstract: The invention relates to a method for purifying or separating a supply gas flow containing at least one impurity, in which: a) said supply gas flow is contacted with a first adsorbent for the adsorption-removal of at least one said impurity; b) recovering said purified or separated gas; c) heating a regeneration gas containing at least hydrogen (H2) and carbon monoxide (CO) using a heater having a skin temperature (T1) of between 150° C. and 200° C. during the gas heating phase; and d) periodically regenerating the adsorbent of step a) with the regeneration gas heated during step c) at a regeneration temperature (T2) such that: T2=T1??T with 5° C.<?T<50° C.

Abstract: The present invention relates to a method for purifying a gas stream including CO2, elemental mercury (Hg0) and nitrogen oxides (NOx).

Abstract: The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a metal material selected from the group consisting of iron, nickel, cobalt, carbon steel or stainless steel and having deposited on the metal surfaces that will come in contact with the coldbox overhead gas stream an inert coating selected from the group consisting of silicon based materials, zinc based materials, tin based materials, chromium based materials, polymers, ceramics and mixtures thereof for heating up gas streams having a mixture of hydrogen and carbon monoxide and obtained from a front end purification unit/cold box unit.

Abstract: A process for gas purification or separation intended to produce a gas mixture containing mainly hydrogen and, to a minor extent CO, it being imperative for the CO content to remain below a set value is presented. This invention particularly relates to adsorption processes and even more particularly to processes of the PSA (“Pressure Swing Adsorption”) type.

Abstract: A method of purifying a gaseous mixture rich in hydrogen and in carbon monoxide, commonly termed an H2/CO mixture or syngas, by adsorption prior to treating it cryogenically with a view to producing a CO-rich fraction, and/or one or more H2/CO mixtures of determined content, such as a mixture of 50 mol % H2/50 mol % CO and generally a hydrogen-rich fraction is provided.

Abstract: The invention relates to a method for removing nitrogen monoxide (NO) and nitrogen oxides (NOx with x>1) from a gas stream, implementing a device including a catalytic bed for converting a portion at least a part of the NO into NOx with x>1, and a unit for reducing the NOx with x>1, and in which the gas stream is placed into contact with the catalytic bed before entering the unit for reducing the NOx with x>1.

Abstract: Process for producing hydrogen from a gas mixture comprising hydrogen, CO2, CO, CH4 and water, employing a CO2 PSA unit, a cryogenic unit and an H2 PSA unit, in which process: a) said gas mixture is introduced into the CO2 PSA unit, producing a CO2-enriched fraction and CO2-depleted fraction; b) CO2-enriched fraction is introduced into the cryogenic unit, producing a CO2-enriched fraction and an H2-enriched fraction; c) the H2-enriched fraction is recycled upstream of the H2 PSA unit; and d) the CO2-depleted fraction coming from step b) is introduced into the H2 PSA unit, producing a hydrogen-enriched stream and a waste gas.

Abstract: The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a metal material selected from the group consisting of iron, nickel, cobalt, carbon steel or stainless steel and having deposited on the metal surfaces that will come in contact with the coldbox overhead gas stream an inert coating selected from the group consisting of silicon based materials, zinc based materials, tin based materials, chromium based materials, polymers, ceramics and mixtures thereof for heating up gas streams having a mixture of hydrogen and carbon monoxide and obtained from a front end purification unit/cold box unit.

Abstract: The invention relates to a method for assembling at least one radial adsorber including at least two concentric perforated grids, an upper base, a lower base, and a cylindrical collar with the same axis as said grids, characterised in that said perforated grids are assembled concentrically on the horizontal plane.

Abstract: A method for producing a CO2-enriched gas from a feed gas comprising carbon dioxide (CO2), at least one component selected from H2, N2, CH4, CO, O2 and argon, water vapour, optionally impurities such as NOx and/or SOx , and a solid-particle concentration of between 0.01 and 100 mg/m3, wherein the feed gas is at least partially dried upstream of a PSA unit in order to prevent the solid particles from caking in the PSA unit is provided.

Abstract: A method for the purification of a feed gas stream containing at least CO2 and at least one impurity with by the incorporation of a purification step, enabling water to be at least partially removed is provided.

Abstract: A method for the purification of a feed gas stream at a pressure ?3 bar, comprising at least 1% by volume of oxygen (O2) and at least 75% by volume of CO2 and mercury, enabling the mercury to be eliminated is provided.

Abstract: A method for the purification of a feed gas stream containing CO2 and water and at least one impurity chosen from NOx and SOx, comprising the incorporation of a purification step for the preferential elimination of water is provided.

Abstract: The invention relates to a method for the cryogenic separation, the cooling or the liquefaction of a fluid using an exchange line, that comprises extracting from said exchange line at least one dual phase fluid (11), separating said dual phase fluid into at least one vapour fraction (4) and one liquid fraction (5) in a phase separator (40), expanding at least one portion of the liquid fraction (5) using a first expansion means (60, 90), reinjecting, reheating and at least partially vaporising said expanded liquid fraction in the exchange line, the first expansion means being a valve, wherein during the cooling of said exchange line, at least a fraction of the fluid extracted from the exchange line (2, 4 or 5) and/or from the phase separator (40) is expanded in second expansion means (61, 71, 81, 91) parallel to the first expansion means (6), while during a normal operation, the second expansion means is essentially closed.