Method of drying a gas making use of a distillation of a liquid
desiccant agent
    31.
    发明授权
    Method of drying a gas making use of a distillation of a liquid desiccant agent 失效
    使用液体干燥剂的蒸馏干燥气体的方法

    公开(公告)号:US5670027A

    公开(公告)日:1997-09-23

    申请号:US543456

    申请日:1995-10-16

    Inventor: Henri Paradowski

    CPC classification number: B01D53/263 Y10S203/08

    Abstract: A method of drying a gas making use of the distillation of a liquid desiccant, the method comprising the introduction of a stream of make-up liquid containing water and of an organic solvent miscible with water, the solvent being a more volatile solvent than water under the conditions of the method and forming no azeotropes with water, in an intermediate zone of an elongated vertical contact and fractional distillation zone.

    Abstract translation: 一种利用液体干燥剂的蒸馏干燥气体的方法,所述方法包括引入含有水和与水混溶的有机溶剂的补充液体流,所述溶剂是比水更易挥发的溶剂, 在细长的垂直接触和分馏区的中间区域中该方法的条件和与水不共沸的条件。

    Method of liquefaction of natural gas
    32.
    发明授权
    Method of liquefaction of natural gas 失效
    天然气液化方法

    公开(公告)号:US5291736A

    公开(公告)日:1994-03-08

    申请号:US954318

    申请日:1992-09-30

    Inventor: Henri Paradowski

    Abstract: A method of liquefying natural gas, wherein the gas (1) is cooled and separated into a liquid phase (6) and a gaseous phase (8) which is expanded (9) and added to the liquid phase in the column (7), at the head of which the gas enriched with methane (21) is separated and recompressed (27) and carried to the liquefaction (32, 33, 34) whereas the liquid phase from the bottom of column (7) is expanded and rectified in column (14); the head effluent (19) being condensed (20) and conveyed as a reflux (25) to column (7); the pressure in column (7) being higher than that of column (14); the C.sub.3 + hydrocarbons from the bottom (16) being separated and the methane liquefaction (33, 34) being conventional.

    Abstract translation: 一种液化天然气的方法,其中将气体(1)冷却并分离成液相(6)和扩展(9)并加入塔(7)中的液相的气相(8) 在其头部,富含甲烷(21)的气体被分离并再压缩(27)并运送到液化(32,33,34),而来自塔(7)底部的液相在塔中膨胀并整排 (14); 流出物(19)被冷凝(20)并作为回流(25)输送到塔(7); 塔(7)中的压力高于塔(14)的压力; 来自底部(16)的C3 +烃被分离,甲烷液化(33,34)是常规的。

    Cryogenic process for desulphurization and gasoline removal of a gaseous
mixture comprising methane containing H.sub.2 S and hydrocarbons having
2 carbon atoms and higher
    33.
    发明授权
    Cryogenic process for desulphurization and gasoline removal of a gaseous mixture comprising methane containing H.sub.2 S and hydrocarbons having 2 carbon atoms and higher 失效
    用于脱硫和汽油除去包含​​含有H 2 S的甲烷和具有2个碳原子和更高的烃的气态混合物的低温方法

    公开(公告)号:US4935043A

    公开(公告)日:1990-06-19

    申请号:US309796

    申请日:1989-02-21

    Abstract: A cryogenic process of simultaneous selective desulphurization and gasoline removal of a gaseous mixture consisting mainly of methane and likewise containing H.sub.2 S and hydrocarbons with C.sub.2 and more.Said gaseous mixture (1), after having eventually undergone an operation of removal of benzol (25) and then cooling (2) producing condensates (4), is washed between 0.degree. C. and -45.degree. C. by means of a solvent (5) selective of H.sub.2 S to produce a current of methane (64) having a partial pressure in H.sub.2 S below 65 Pa and a liquid phase (9a) rich in H.sub.2 S and containing at least 80% molar of the hydrocarbons of C.sub.3 and more of the gaseous mixture (1). The liquid phase (9a) is subjected to a demethanization (29, 9) producing a demethanized rich solvent (11) and a gaseous phase rich in methane (10), the solvent (11) then is cooled between -25.degree. and -80.degree. C. sufficiently to produce its dissociation in a lower liquid fraction (38) that contains the H.sub.2 S and, in methane equivalent, less than 5% molar of hydrocarbons and an upper liquid fraction (37) formed of the hydrocarbons of C.sub.3 and more. Said fractions (37, 38)are separated and the fraction (38) undergoes a regeneration (46, 16, 20) to produce a current (24) of acid gas rich in H.sub.2 S and containing the small amount cited above of hydrocarbons and a regenerated solvent (21).

    Abstract translation: PCT No.PCT / FR88 / 00227 Sec。 371日期1989年2月21日 102(e)日期1989年2月21日PCT提交1988年5月10日PCT公布。 出版物WO88 / 08833 日期:1988年11月17日。一种同时选择性脱硫和汽油除去主要由甲烷组成的气体混合物的低温过程,同时含有H2S和含C2以上的烃。 所述气态混合物(1)在最终经过去除苯(25)的操作,然后冷却(2)生成冷凝物(4))后,在0℃和-45℃之间通过溶剂 (5)选择性的H 2 S以产生在低于65Pa的H 2 S中的分压的甲烷(64)和富含H 2 S的液相(9a),并且含有至少80%的C 3和更多的烃的摩尔 气体混合物(1)。 对液相(9a)进行去甲烷化(29,9),生成脱甲基富溶剂(11)和富含甲烷(10)的气相,然后将溶剂(11)冷却至-25°至-80° 足以产生其在含有H 2 S的较低液体馏分(38)中的解离,以及相当于甲烷当量小于5摩尔的烃和由C3等烃形成的上部液体馏分(37)。 所述级分(37,38)被分离,级分(38)经历再生(46,16,20)以产生富含H 2 S的酸性气体的电流(24),并含有上述少量的烃和再生的 溶剂(21)。

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