摘要:
The purpose of the present invention is to provide a process and an apparatus for efficiently treating a gas containing fluorine-containing compounds and CO to be discharged, for example, from the step of dry cleaning the inner surfaces and the like of a semiconductor manufacturing apparatus or the step of etching various types of formed films such as oxide films in the semiconductor industry. In order to accomplish the above-mentioned purpose, the gas treating process according to the present invention is a process for treating a gas containing fluorine-containing compounds and CO which comprises contacting the above described gas with O 2 and H 2 O at a temperature of 850°C or higher to oxidize the CO to CO 2 ; and then contacting the gas with γ-alumina at a temperature of 600 to 900°C to decompose the fluorine-containing compounds.
摘要:
Methods, systems and designs are provided for removing mercury from crudes. Crude oil is heated to a temperature above 100°C and held at that temperature for a specified period of time to convert all of the forms of mercury in the oil into the elemental mercury form. The elemental mercury is then stripped from the crude oil by e.g., flashing the hot oil and/or contacting it with a gas phase. This process transfers the elemental mercury from the oil phase into the gas phase. Elemental mercury can then be removed from the gas phase by methods such as condensation, precipitation, or absorption either alone or in combination.
摘要:
Methods, systems and designs are provided for removing mercury from crudes. Crude oil is heated to a temperature above 100°C and held at that temperature for a specified period of time to convert all of the forms of mercury in the oil into the elemental mercury form. The elemental mercury is then stripped from the crude oil by e.g., flashing the hot oil and/or contacting it with a gas phase. This process transfers the elemental mercury from the oil phase into the gas phase. Elemental mercury can then be removed from the gas phase by methods such as condensation, precipitation, or absorption either alone or in combination.
摘要:
Methods, systems and designs are provided for removing mercury from crudes. Crude oil is heated to a temperature above 100°C and held at that temperature for a specified period of time to convert all of the forms of mercury in the oil into the elemental mercury form. The elemental mercury is then stripped from the crude oil by e.g., flashing the hot oil and/or contacting it with a gas phase. This process transfers the elemental mercury from the oil phase into the gas phase. Elemental mercury can then be removed from the gas phase by methods such as condensation, precipitation, or absorption either alone or in combination.
摘要:
Provided are a reclaimer 51 that introduces, through a branch line L 11 , and stores a part 17a of an absorbent 17 regenerated in a regenerator of a recovery unit that recovers CO2 or H 2 S in a gas, a first alkaline agent supply section 53A that supplies an alkaline agent 52 to the reclaimer 51, a heating section 54 that heats the absorbent 17 stored in the reclaimer 51 and to which the alkaline agent 52 has been mixed to obtain recovered vapor 61, a first vapor cooler 55A that cools the recovered vapor 61 discharged from the reclaimer 51 through a vapor line L 12 , a first gas-liquid separator 56A that separates a coexisting substance 62 entrained in the cooled recovered vapor 61 into a recovered absorption agent vapor (gas) 17b and the liquid coexisting substance 62 by gas-liquid separation, and an introduction line L 13 that introduces the recovered absorption agent vapor 17b separated in the first gas-liquid separator 56A into a regenerator 20.
摘要:
Method for the additive manufacturing of metal powders by selective sintering or melting of a metal powder in a powder bed by introducing a high energy into the selected parts of the powder bed, wherein the additive manufacturing is processed in a chamber under a protective or purging gas, characterized in that the oxygen contact of the chamber and/or the purging gas is reduced by continu-ously or sequently enriching the purging gas with a gaseous hydrate.
摘要:
Die Erfindung betrifft die Energiewirtschaft und den chemischen Anlagenbau und kann in der Chemieindustrie, petrolchemischen Industrie, Hüttenindustrie, in der Lebensmittelindustrie und in anderen Industriebranchen eingesetzt werden. Ein liegendes Bündelrohrmodul eines Hydrid-Thermosorptionsabscheider-Wasserstoffspeichers/-verdichters weist einen Mantel und rohrförmige Sorptionselemente auf, wobei die Sorptionselemente in Form eines Zylinders mit einem darin eingefüllten pulverartigen Wasserstoffsorptionsmittel auf der Basis von intermetallischen reversible Hydride bildenden Verbindungen ausgebildet sind, sowie rohrförmige porige Gasverteilungsvorrichtungen. Das Rohr-Sorptionselement weist einen Innenzylinder auf. Das Wasserstoffsorptionsmittel befindet sich im Ringhohlraum zwischen dem Innenund dem Außenzylinder. Die rohrförmige porige Gasverteilungsvorrichtung ist in Form von Rohren ausgebildet, die an einem Ende verschlossen und mit Rohrsammlern verbunden sind und im oberen und im unteren Teil des Sorptionselements liegen, um das Mischgas zuführen und Wasserstoff und Restgas abführen zu können. Die Erfindung erlaubt, ein hochleistungsfähiges Bündelrohrmodul eines HydridThermosorptionsabscheider-Wasserstoffspeichers/-verdichters herzustellen, welches eine Erzeugung von reinem Wasserstoff unter Hochdruck sicherstellt.
摘要:
A process for reducing and/or removing sour gases, such as carbon dioxide and hydrogen sulfide, from natural gas or from gas associated with oil reservoirs, by means of the formation of mixed hydrates, wherein a selective separation is carried out both during the hydrates decomposition, under pressure conditions close to atmospheric pressure and temperatures little below zero, and, preferably, during a preliminary step, with pressures and temperatures close to the equilibrium values.
摘要:
Provided are a reclaimer 51 that introduces, through a branch line L 11 , and stores a part 17a of an absorbent 17 regenerated in a regenerator of a recovery unit that recovers CO2 or H 2 S in a gas, a first alkaline agent supply section 53A that supplies an alkaline agent 52 to the reclaimer 51, a heating section 54 that heats the absorbent 17 stored in the reclaimer 51 and to which the alkaline agent 52 has been mixed to obtain recovered vapor 61, a first vapor cooler 55A that cools the recovered vapor 61 discharged from the reclaimer 51 through a vapor line L 12 , a first gas-liquid separator 56A that separates a coexisting substance 62 entrained in the cooled recovered vapor 61 into a recovered absorption agent vapor (gas) 17b and the liquid coexisting substance 62 by gas-liquid separation, and an introduction line L 13 that introduces the recovered absorption agent vapor 17b separated in the first gas-liquid separator 56A into a regenerator 20.