Removal of condensable aliphatic hydrocarbons and acidic gases from
natural gas
    1.
    发明授权
    Removal of condensable aliphatic hydrocarbons and acidic gases from natural gas 失效
    从天然气中去除可冷凝的脂族烃和酸性气体

    公开(公告)号:US4414004A

    公开(公告)日:1983-11-08

    申请号:US356721

    申请日:1982-03-10

    IPC分类号: B01D53/14 C07C7/11 C10G5/04

    摘要: A process for removing condensable aliphatic hydrocarbons and acidic gases such as H.sub.2 S, CO.sub.2 and COS from natural gas containing these, wherein the natural gas is initially treated with polyethylene glycol dialkyl ethers, as the solvent, in a first absorption stage to effect absorption of the condensable aliphatic hydrocarbons; the natural gas drawn off from the first absorption stage is then treated with polyethylene glycol dialkyl ethers, as the solvent, under superatmospheric pressure in a second absorption stage, the acidic gases being completely or partly absorbed; the solvent charged with the condensable aliphatic hydrocarbons which is obtained from the first absorption stage is treated with water in an extraction stage, to form a hydrocarbon phase containing the condensable aliphatic hydrocarbons and an aqueous dialkyl ether phase, and the hydrocarbon phase is separated from the aqueous dialkyl ether phase. The solvent charged with acid gases which is obtained from the second absorption stage is regenerated by expansion and/or stripping in a regeneration stage and the regenerated solvent is recycled to the absorption.

    摘要翻译: 从含有这些的天然气中除去可冷凝的脂族烃和酸性气体如H 2 S,CO 2和COS的方法,其中在第一吸收阶段天然气首先用聚乙二醇二烷基醚作为溶剂处理,以实现吸收 可缩合的脂族烃; 然后在第二吸收阶段的超大气压下,用作为溶剂的聚乙二醇二烷基醚处理从第一吸收阶段排出的天然气,酸性气体被完全或部分吸收; 在萃取阶段用水处理从第一吸收阶段得到的可冷凝脂肪族烃的溶剂,形成含有可冷凝脂族烃和二烷基醚水相的烃相,将烃相与 二烷基醚相水相。 通过在再生阶段中的膨胀和/或汽提再生从第二吸收阶段获得的装有酸性气体的溶剂,并将再生的溶剂再循环至吸收。

    Preparation of synthesis gas by partial oxidation
    4.
    发明授权
    Preparation of synthesis gas by partial oxidation 失效
    通过部分氧化制备合成气

    公开(公告)号:US4999029A

    公开(公告)日:1991-03-12

    申请号:US462000

    申请日:1990-01-08

    IPC分类号: C01B3/36 C10J3/46 C10J3/48

    摘要: Synthesis gases are prepared by partial autothermal oxidation of liquid fuels and/or solid fuels in the presence of oxygen or oxygen-containing gases with the addition of a temperature moderator, such as steam and/or CO.sub.2, in an empty reactor space without baffles, at from 1000.degree. to 1500.degree. C. under from 1 to 100 bar, the reactants fuel and oxygen-containing gas being fed separately to the reactor, by a process in which the steam or CO.sub.2 is fed in simultaneously with the feed of the fuel, and the steam is let down through one or more nozzles into the fuel steam directly before the orifice for the fuel, let-down being effected at from 30 to 250%, preferably from 80 to 140%, of the critical pressure ratio. An apparatus for carrying out the process is also described.

    摘要翻译: 合成气体通过在空气反应器空间中没有挡板的情况下,在含氧或含氧气体的存在下加入温度调节剂如蒸汽和/或CO 2来部分自热氧化液体燃料和/或固体燃料, 在1000至1500℃下,在1至100巴下,反应物燃料和含氧气体分别进料到反应器中,其中蒸汽或二氧化碳与燃料进料同时进料 并且蒸汽通过一个或多个喷嘴通过直接在用于燃料的孔口之前进入燃料蒸汽,减压在临界压力比的30至250%,优选80至140%的范围内进行。 还描述了用于执行该过程的装置。

    Preparation of mono- and poly-ethylene glycol dialkyl ethers
    6.
    发明授权
    Preparation of mono- and poly-ethylene glycol dialkyl ethers 失效
    单和聚乙二醇二烷基醚的制备

    公开(公告)号:US4187384A

    公开(公告)日:1980-02-05

    申请号:US2336

    申请日:1979-01-10

    CPC分类号: C07C41/06 C08G65/337

    摘要: Mono- and poly-ethylene glycol dialkyl ethers IR.sup.1 --O--(--CH.sub.2 --CH.sub.2 --O--).sub.n --R.sup.2where R.sup.1 is C.sub.1 -C.sub.4 -alkyl, R.sup.2 is C.sub.3 -C.sub.5 -alkyl and n is from 1 to 100, are prepared by reacting monoalkyl ethers IIR.sup.1 --O--(--CH.sub.2 --CH.sub.2 --O--).sub.n --Hwith a C.sub.3 -C.sub.5 -olefin III in the presence of an acid ion exchanger at from 1 to 200 bar and from 40.degree. to 150.degree. C., the reaction being started at from 100.degree. to 150.degree. C. and the temperature then being lowered, in at least two approximately equal steps, to from 40.degree. to 80.degree. C., the temperature being dropped in each case to the next-lower level when the conversion per unit time no longer changes significantly.

    摘要翻译: 单 - 和聚乙二醇二烷基醚I R1-O - ( - CH2-CH2-O-)n-R2其中R1是C1-C4烷基,R2是C3-C5-烷基,n是1到100, 在酸性离子交换剂存在下,在1至200巴和40至150℃下使单烷基醚IIR 1 -O - ( - CH 2 -CH 2 -O-)n H与C 3 -C 5烯烃III反应制备。 反应开始于100℃至150℃,然后将温度以至少两个近似相等的步骤降低至40℃至80℃,每种情况下将温度降至 下一级别,单位时间的转换不再显着变化。