Process and apparatus for eliminating at least one acid gas by means of
a solvent for the purification of natural gas
    2.
    发明授权
    Process and apparatus for eliminating at least one acid gas by means of a solvent for the purification of natural gas 失效
    通过用于净化天然气的溶剂消除至少一种酸性气体的方法和装置

    公开(公告)号:US5735936A

    公开(公告)日:1998-04-07

    申请号:US634703

    申请日:1996-04-18

    IPC分类号: B01D53/14 C10L3/10 B01D53/22

    摘要: The process comprises a cold absorption step 2 for removing acid gas from natural gas using a solvent phase at a pressure P.sub.2 which delivers a purified gas 5; a step for depressurizing and separating resultant acidic solvent phase containing hydrocarbons (lines 4, 11), at a pressure P.sub.12 which is lower than pressure P.sub.2 in a column-heat exchanger 12 which delivers a purified gaseous effluent 13 overhead and a further solvent phase at the bottom (line 17) which is enriched in hydrogen sulphide; and a solvent phase regeneration step carried out in a distillation column 18 at a pressure P.sub.18 and no higher than pressure P.sub.12. A gas 29 containing essentially hydrogen sulphide which is depleted in hydrocarbons is recovered from column 18 and is a suitable feed for a Claus plant for eliminating H.sub.2 S. The regenerated hot solvent phase 20 indirectly exchanges heat with the cold acidic solvent phase from absorber 2 or separator 6. It is then recycled to the absorbent after cooling.

    摘要翻译: 该方法包括一个冷吸收步骤2,用于使用在输送净化气体5的压力P2下的溶剂相从天然气中除去酸性气体; 在塔式热交换器12中以低于压力P2的压力P12压缩和分离所产生的含有烃的酸性溶剂相(管线4,11)的步骤,其将塔顶馏出物和另外的溶剂相输送到 富含硫化氢的底部(管线17) 以及在压力P18且不高于压力P12的蒸馏塔18中进行的溶剂相再生步骤。 从塔18中回收含有基本上含有硫化氢的硫化氢的气体29,并且是用于克劳斯工厂消除H 2 S的合适进料。 再生的热溶剂相20与来自吸收器2或分离器6的冷的酸性溶剂相间接地进行热交换。然后在冷却后再循环至吸收剂。

    Process and device for catalytic dehydrogenation of a C.sub.2+
paraffinic charge comprising means for inhibiting the freezing of water
in the effluent
    3.
    发明授权
    Process and device for catalytic dehydrogenation of a C.sub.2+ paraffinic charge comprising means for inhibiting the freezing of water in the effluent 失效
    用于催化脱氢的C2 +链烷烃装置的方法和装置,包括用于抑制流出物中水的冷冻的装置

    公开(公告)号:US5489725A

    公开(公告)日:1996-02-06

    申请号:US148274

    申请日:1993-11-08

    摘要: A process and a device for the catalytic dehydrogenation of a C.sub.2+ paraffinic hydrocarbon charge is applicable to the synthesis of methyl tert-butyl ether. Effluent coming from the dehydrogenation reactor and containing olefins and water is cooled in at least one heat exchanger (41), saturated with water in a column (3) and sent to a stripping column (10) where it is at least partly put in contact with a recycled aqueous liquid phase containing a solvent, preferably methanol. The compressed gaseous effluent in which the water is thereby inhibited from freezing by the methanol is cooled in a heat exchanger (13) then separated in separator (8) into olefins and into hydrogen. An aqueous liquid phase with methanol is decanted at (8) and recycled in column (10).

    摘要翻译: 用于C2 +链烷烃加料催化脱氢的方法和装置适用于甲基叔丁基醚的合成。 来自脱氢反应器并含有烯烃和水的流出物在至少一个在柱(3)中被水饱和的热交换器(41)中冷却,并被送至汽提塔(10),在该塔中至少部分地接触 与含有溶剂的循环水性液相,优选甲醇。 其中由此被水抑制的被压缩的气态流出物被甲醇冷冻,然后在热交换器(13)中冷却,然后在分离器(8)中分离成烯烃并进入氢气。 在(8)处将含有甲醇的水相液相倾析并在塔(10)中回收。

    Process for the dehydration, deacidification and stripping of a natural
gas, utilizing a mixture of solvents
    4.
    发明授权
    Process for the dehydration, deacidification and stripping of a natural gas, utilizing a mixture of solvents 失效
    利用溶剂混合物对天然气进行脱水,脱酸和汽提的方法

    公开(公告)号:US5782958A

    公开(公告)日:1998-07-21

    申请号:US777442

    申请日:1996-12-30

    CPC分类号: C10L3/102 C10L3/10

    摘要: A process for the dehydration, deacidification and stripping of a gas, characterized in that: (a) at least one fraction of the gas is contacted with an aqueous phase containing methanol, the resultant gas being thus charged with methanol being withdrawn from stage (a); (b) the gas withdrawn from stage (a) is contacted with a mixture of solvents comprising methanol, water, and a solvent heavier than methanol, the gas leaving stage (b) being thus at least in part freed of the acid gases which it contained initially; (c) the mixture of solvent obtained from stage (b) is at least in part generated by special reduction and/or heating while liberating at least part of the acid gases, the mixture of solvent being at least partially regenerated, or being at the outlet of stage (c) recycled through stage (b); and (d) the gas obtained from (stage b) is refrigerated while producing at least an aqueous phase containing methanol which is at least in part recycled through stage (a).

    摘要翻译: 一种气体的脱水,脱酸和汽提的方法,其特征在于:(a)至少一部分气体与含有甲醇的水相接触,由此将所得气体从甲烷中排出(a ); (b)从阶段(a)排出的气体与包含甲醇,水和比甲醇重的溶剂的混合物的混合物接触,离开阶段(b)的气体因此至少部分地不含酸性气体 最初包含 (c)从阶段(b)获得的溶剂的混合物至少部分地通过特殊还原和/或加热产生,同时释放至少部分酸性气体,溶剂的混合物至少部分再生或处于 通过阶段(b)循环的阶段(c)出口; 和(d)从(阶段b)获得的气体在至少生成至少部分通过阶段(a)再循环的甲醇的水相的同时进行冷冻。

    Process for the treatment and transportation of a natural gas from a gas
well
    5.
    发明授权
    Process for the treatment and transportation of a natural gas from a gas well 失效
    用于处理和运输天然气的工艺

    公开(公告)号:US5351756A

    公开(公告)日:1994-10-04

    申请号:US63912

    申请日:1993-05-20

    摘要: A process for the treatment or processing and transportation of a natural gas from a gas well to a reception and treatment or processing terminal comprises, in a zone in the producing well, contacting the natural gas and a recycled liquid phase containing water and at least one anti-hydrate additive and/or at least one anti-corrosion additive, both of which being at least partly miscible with water and which vaporize in the pure state or as an azeotrope. The resultant additive-containing gaseous phase is cooled to form an uncondensed and a condensate. The condensate containing substantially all of the additive is separated from the uncondensed gas and is recycled to the contact zone in the producing well.

    摘要翻译: 将天然气从气井处理或运输到接收和处理或处理终端的方法包括在生产井的区域中使天然气与含有水和至少一种 抗水合物添加剂和/或至少一种抗腐蚀添加剂,它们都至少部分地与水混溶并且在纯态下蒸发或作为共沸物。 将所得含添加剂的气相冷却以形成未冷凝和冷凝物。 含有基本上所有添加剂的冷凝物与未冷凝的气体分离并再循环到生产井中的接触区。

    Process and apparatus for transporting and treating a natural gas
    6.
    发明授权
    Process and apparatus for transporting and treating a natural gas 失效
    运输和处理天然气的过程和装置

    公开(公告)号:US5127231A

    公开(公告)日:1992-07-07

    申请号:US643620

    申请日:1991-01-22

    CPC分类号: F17D1/05 E21B43/34 F17D1/005

    摘要: Described are a process and an apparatus for transporting and treating a natural gas.The process according to the invention comprises contacting in a zone G.sub.1 the gas issuing from a production well (1) with a liquid phase coming at least in part from recycling (4) and containing water and at least one anti-corrosion additive and/or at least one anti-hydrate additive which is at least partly water-miscible and vaporizing in the pure state or in azeotrope form; transporting the additive-charge gaseous phase in a conduit (5), cooling it at E.sub.1, separating at B.sub.1 an aqueous phase from the non-condensed gas which is collected by way of a conduit (10) and recycling the additive-charged aqueous phase to the contact zone G.sub.1 by way of the line (9, 4).The process and apparatus are for the transportation of natural gas over long distances in particular.

    摘要翻译: 描述了用于运输和处理天然气的方法和装置。 根据本发明的方法包括在区域G1中使从生产井(1)发出的气体与至少部分来自再循环(4)并且含有水和至少一种防腐添加剂的液相接触,和/或 至少一种抗水合物添加剂,其至少部分为水混溶性且在纯态或以共沸形式蒸发; 在管道(5)中输送添加剂充气气相,在E1冷却,在B1处将水相与未冷凝的气体分离,所述非冷凝气体通过导管(10)收集,并将添加的带电荷的水相 通过线(9,4)到达接触区域G1。 该方法和装置特别用于长距离输送天然气。

    Process for the production of paraxylene that comprises an adsorption stage, a liquid phase isomerization stage and a gas phase isomerization stage with an euo-type zeolite
    7.
    发明授权
    Process for the production of paraxylene that comprises an adsorption stage, a liquid phase isomerization stage and a gas phase isomerization stage with an euo-type zeolite 有权
    用于生产对二甲苯的方法,其包括吸附阶段,液相异构化阶段和具有沸石型沸石的气相异构化阶段

    公开(公告)号:US06448459B1

    公开(公告)日:2002-09-10

    申请号:US09556298

    申请日:2000-04-24

    IPC分类号: C07C522

    摘要: A process for the production of paraxilene comprises an adsorption stage (18) using toluene as a desorbent in a simulated moving bed of a feedstock previously depleted in ethylbenzene by distillation (3) or by adsortion, an isomerization stage (26) without hydrogen in liquid phase diluted with toluene from the raffinate produced, a distillation stage (27) of the raffinate that is isomerized to recover the toluene (29) that is recycled. The separated isomerate is introduced into a xylene distillation column (9). The separated ethylbenzene is isomerized separately in gas phase with hydrogen at higher temperature and is distilled (5, 2, 9) in the presence of a catalyst that comprises an EUO-structural-type zeolite, then recycled to adsorption stage (18).

    摘要翻译: 生产对二聚烯烃的方法包括使用甲苯作为解吸剂的吸附阶段(18),其在先前通过蒸馏(3)或通过沸腾消耗乙基苯的原料的模拟移动床中,或在无液体中的氢气的异构化阶段(26) 相,由制备的萃余液用甲苯稀释,将残液的蒸馏阶段(27)异构化以回收再循环的甲苯(29)。 将分离的异构体引入二甲苯蒸馏塔(9)中。 分离的乙苯在气相中分别与氢气在较高温度下异构化,并在包含EUO结构型沸石的催化剂存在下蒸馏(5,2,9),然后再循环至吸附阶段(18)。

    Process for the pretreatment of a natural gas containing hydrogen
sulphide
    8.
    发明授权
    Process for the pretreatment of a natural gas containing hydrogen sulphide 失效
    用于预处理含有硫化氢的天然气的方法

    公开(公告)号:US5520249A

    公开(公告)日:1996-05-28

    申请号:US382405

    申请日:1995-02-01

    CPC分类号: B01D53/1468 E21B43/40

    摘要: A process is described for the pretreatment of a pressurized natural gas which is saturated with water and contains hydrocarbons and hydrogen sulfide (H.sub.2 S) from a producing well. At least a portion of the natural gas (1) is brought into contact with at least a portion of recycled liquid condensate (2) in a cyclone (5). The vapor phase (6), containing H.sub.2 S and hydrocarbons, is cooled in zone (20), condensed and separated in separator (3). A gas (30) which is enriched in methane and depleted in H.sub.2 S is recovered while the condensate (8) is recycled to cyclone (5) after preheating if necessary. A water-containing liquid effluent (7) which is enriched in H.sub.2 S and depleted in hydrocarbons is recovered from the bottom of cyclone (5). This is reintroduced into the well (10).

    摘要翻译: 描述了一种用于预处理由水饱和的加压天然气并从生产井中含有烃和硫化氢(H 2 S)的方法。 至少一部分天然气(1)与旋流器(5)中的再循环液体冷凝物(2)的至少一部分接触。 含有H 2 S和烃的气相(6)在区域(20)中冷却,在分离器(3)中冷凝和分离。 回收富含甲烷并耗尽H 2 S的气体(30),同时如果需要,将冷凝物(8)再循环至旋风分离器(5)。 从旋风分离器(5)的底部回收富含H 2 S并耗尽烃的含水液体流出物(7)。 这被重新引入井(10)。

    Cogeneration method and device using a gas turbine comprising a post-combustion chamber
    9.
    发明授权
    Cogeneration method and device using a gas turbine comprising a post-combustion chamber 失效
    热电联供方法和使用包括后燃烧室的燃气轮机的装置

    公开(公告)号:US07703271B2

    公开(公告)日:2010-04-27

    申请号:US10548738

    申请日:2004-03-11

    IPC分类号: F02C1/06 F02C6/00

    摘要: A cogeneration method and device by turbine, particularly by gas turbine, uses a compression section, at least one expansion section, and a combustion chamber. A combustion agent including oxygen is compressed in the compression section; in the combustion chamber, one combustion step is carried out under pressure with a mixture of combustion agent compressed with a fuel; at least some of the hot gases obtained by pressurized combustion are used to effect an exchange with an external facility; and at least one postcombustion step is carried out of a mixture of hot gases coming from combustion with a fuel, prior to the exchange, and at least one other postcombustion step of a mixture of hot gases, coming from the exchange, with a fuel, in order to obtain hot gases that are sent to the expansion section.

    摘要翻译: 涡轮机,特别是燃气轮机的热电联产方法和装置使用压缩部分,至少一个膨胀部分和燃烧室。 包含氧的燃烧剂在压缩部中被压缩; 在燃烧室中,一个燃烧步骤在压力下用燃料压缩的燃烧剂的混合物进行; 通过加压燃烧获得的至少一些热气体用于与外部设备进行交换; 并且在交换之前,将来自燃烧的热气体与燃料的混合物进行至少一个后燃烧步骤,以及来自交换机的热气体与燃料的混合物的至少一个后燃烧步骤, 以获得发送到膨胀部分的热气体。

    Natural gas deacidizing and dehydration method
    10.
    发明授权
    Natural gas deacidizing and dehydration method 失效
    天然气脱酸脱水法

    公开(公告)号:US07175820B2

    公开(公告)日:2007-02-13

    申请号:US10729965

    申请日:2003-12-09

    IPC分类号: B01D53/14

    摘要: The natural gas is deacidized by contacting in zone 3 with a solvent containing amine in aqueous solution. The gas is then dehydrated by contacting in zone 4 with a solvent very rich in amine. After the contacting operations, the solvent containing H2S. and water is expanded in drum 9, then regenerated in column 11. Part of the regenerated solvent is sent to zone 3. Another part of the regenerated solvent is vacuum distilled in column 18 so as to produce an amine-rich solvent that is sent to zone 4.

    摘要翻译: 天然气通过在区域3中与含水溶液中的胺的溶剂接触来脱酸。 然后通过在区域4中与非常富含胺的溶剂接触来使气体脱水。 在接触操作之后,含有H 2 S的溶剂。 并将水在鼓9中膨胀,然后在第11列中再生。 部分再生溶剂被送到区域3。 另一部分再生溶剂在塔18中进行真空蒸馏,以产生送到区域4的富含胺的溶剂。