Process and device for catalytic dehydrogenation of a C.sub.2+
paraffinic charge comprising means for inhibiting the freezing of water
in the effluent
    2.
    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 and apparatus for eliminating at least one acid gas by means of
a solvent for the purification of natural gas
    3.
    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 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 regeneration of a desiccant
    7.
    发明授权
    Process for the regeneration of a desiccant 失效
    干燥剂再生的工艺

    公开(公告)号:US5501776A

    公开(公告)日:1996-03-26

    申请号:US154406

    申请日:1993-11-19

    IPC分类号: B01D3/14 B01D3/34

    摘要: For the regeneration of a liquid desiccant, a stripping agent is used which is liquid at ambient temperature and pressure, and forms a heteroazeotrope with water, along with the following steps: (a) distillation of the water-laden liquid desiccant to form vapor and partially regenerated liquid desiccant; (b) reboil partially regenerated liquid desiccant; (c) stripping of partially regenerated liquid desiccant during (a) and (b), using vaporized stripping agent; (d) a condensing of vapor the exiting the distillation, the condensation producing two liquid phases, one mainly water and the other mainly stripping agent; (e) heating the stripping agent-rich liquid phase exiting step (d) to generate a vapor phase which is richer in water than said liquid phase and a water-depleted liquid phase; and (f) returning the vaporized liquid phase exiting step (e) to step (c).

    摘要翻译: 对于液体干燥剂的再生而言,使用在环境温度和压力下为液体的汽提剂,并与水形成杂合物,以及以下步骤:(a)蒸馏含水液体干燥剂以形成蒸汽, 部分再生液体干燥剂; (b)再沸部分再生液体干燥剂; (c)使用蒸发汽提剂在(a)和(b)中汽提部分再生液体干燥剂; (d)蒸馏出来的蒸气冷凝,冷凝产生两个液相,一个主要是水,另一个主要是汽提剂; (e)加热离开步骤(d)的汽提剂富液相以产生比所述液相更富水的水蒸气相和贫水液相; 和(f)将离开步骤(e)的汽化液相返回到步骤(c)。

    Method and device for treating natural gas containing water and
condensible hydrocarbons
    8.
    发明授权
    Method and device for treating natural gas containing water and condensible hydrocarbons 失效
    用于处理含有水和可冷凝烃的天然气的方法和装置

    公开(公告)号:US5907924A

    公开(公告)日:1999-06-01

    申请号:US849665

    申请日:1997-08-29

    摘要: A method of treating gas containing water in order to remove at least part of the water from the gas, including feeding the natural gas to be treated by a first line, with a liquid fraction containing at least an aqueous phase is fed via a second line in the presence of a solvent into a contact zone, so as to bring the gas into direct contact with the liquid fraction over at least a portion of the contact zone. The solvent is a non-hydrocarbon compound other than water, and simultaneously, the gas is cooled in the presence of the solvent in order to condense at least one liquid phase consisting essentially of water in a mixture with the solvent. The non-condensed gaseous phase is separated from the condensed liquid phase, from which the solvent has essentially been removed

    摘要翻译: PCT No.PCT / FR96 / 01581 Sec。 371日期1997年8月29日 102(e)日期1997年8月29日PCT 1996年10月10日PCT公布。 公开号WO97 / 13574 日期1997年04月17日一种处理含水气体的方法,以从气体中除去至少一部分水,包括用至少含有水相的液体馏分将第一行的待处理天然气进料, 在存在溶剂的情况下通过第二管线进入接触区域,以使气体在接触区域的至少一部分上与液体部分直接接触。 溶剂是除水以外的非烃化合物,同时,在溶剂存在下将气体冷却,以冷凝至少一种基本上由与溶剂的混合物中的水组成的液相。 将非冷凝气相与冷凝的液相分离,溶剂基本上从其中除去

    Method of reducing the benzene content of gasolines
    9.
    发明授权
    Method of reducing the benzene content of gasolines 失效
    降低汽油的苯含量的方法

    公开(公告)号:US5185486A

    公开(公告)日:1993-02-09

    申请号:US570460

    申请日:1990-08-21

    IPC分类号: C10L1/04 C10G29/20 C10L1/06

    CPC分类号: C10L1/06 C10G29/205

    摘要: The benzene content of hydrocarbon gasolines is accomplished by (a) fractionating at least one hydrocarbon gasoline into a light fraction A, with an increased benzene content, and a heavy fraction B, with a reduced benzene content; (b) contacting the light fraction A at a temperature below room temperature with a gas containing at least a fraction of olefins in which the number of carbon atoms is from 2 to 5 per molecule so that at least a fraction of said olefins is absorbed in light fraction A; at the end of stage (b), separating a residual gas with a reduced olefin content from a liquid fraction C, with an increased olefin content; (d) passing the fraction C from stage (c) into an alkylation reactor so that at least a fraction of the benzene is alkylated by at least a fraction of the olefins; (e) fractionating the mixture emerging from stage (d) so as to produce, firstly, a gas phase chiefly comprising gases which were not converted during stage (d) and, secondly, a liquid phase, at least partly containing the non-alkylated benzene and alkylbenzenes; and (f) mixing the liquid phase from stage (e) with the heavy fraction B from stage (a).

    摘要翻译: 烃汽油的苯含量通过以下方式完成:(a)将至少一种烃汽油分馏成苯含量增加的轻馏分A和苯含量降低的重馏分B; (b)在低于室温的温度下使轻馏分A与含有至少一部分烯烃的气体接触,其中每分子碳原子数为2至5,使得至少一部分所述烯烃被吸收在 轻馏分A; 在阶段(b)结束时,从液体馏分C中分离出具有降低的烯烃含量的残余气体,烯烃含量增加; (d)将馏分C从步骤(c)进入烷基化反应器,使至少一部分苯由至少一部分烯烃烷基化; (e)对从阶段(d)出来的混合物进行分馏,以首先产生主要包含阶段(d)期间未转化的气体的气相,其次,至少部分含有非烷基化 苯和烷基苯; 和(f)将来自级(e)的液相与来自级(a)的重馏分B混合。