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    • 7. 发明申请
    • PROCESS FOR THE MANUFACTURE OF 1,2-DICHLOROETHANE
    • 1,2-二氯乙烷的制备方法
    • WO2007147870A1
    • 2007-12-27
    • PCT/EP2007/056187
    • 2007-06-21
    • SOLVAY (Société Anonyme)BALTHASART, DominiqueLEMPEREUR, MichelSTREBELLE, Michel
    • BALTHASART, DominiqueLEMPEREUR, MichelSTREBELLE, Michel
    • C07C17/02C07C17/156C08F14/06C07C17/25
    • C08F14/06C07C17/02C07C17/156C07C17/25C07C19/045C07C21/06C08F2/00C08F14/12Y02P20/582
    • Process for the manufacture of DCE starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a first cracking step, namely a pyrolysis step carried out in at least one cracking furnace, thus producing a mixture of cracking products; b) said mixture of cracking products is subjected to a series of treatment steps making it possible to obtain a mixture of products containing ethylene and other constituents; c) said mixture of products containing ethylene is subjected to a first separation step S1 which consists of separating said mixture of products inside a column C1, into a fraction enriched with the compounds that are lighter than ethylene containing some of the ethylene (fraction A) and into a fraction F1; d) fraction F1 is subjected to a second separation step S2 which consists of separating fraction F1 inside a column C2 into a fraction F2 and into a heavy fraction (fraction C); e) fraction F2 is subjected to a third separation step S3 which consists of separating fraction F2 inside a column C3 into a fraction enriched with ethylene (fraction B) and into a fraction F3 mainly composed of ethane; f) fraction A is conveyed to a chlorination reactor and fraction B is conveyed to an oxychlorination reactor, reactors in which most of the ethylene present in fractions A and B is converted to1,2-dichloroethane; and g) the 1,2-dichloroethane obtained is separated from the streams of products derived from the chlorination and oxychlorination reactors.
    • 用于从烃源开始制造DCE的方法,其中:a)烃源经受第一裂化步骤,即在至少一个裂解炉中进行的热解步骤,从而产生裂化产物的混合物; b)所述裂化产物的混合物经受一系列处理步骤,使得可以获得含有乙烯和其它组分的产物的混合物; c)含有乙烯的所述产物混合物进行第一分离步骤S1,该步骤包括将柱C1内的产物混合物分离成富含比含有一些乙烯(馏分A)的乙烯轻的化合物的级分, 并进入分数F1; d)级分F1进行第二分离步骤S2,其由柱C2内的馏分F1分离成馏分F2和重馏分(馏分C)组成。 e)级分F2进行第三分离步骤S3,其由柱C3内的馏分F2分离成富乙烯(馏分B)的馏分和主要由乙烷组成的级分F3; f)级分A被输送到氯化反应器,馏分B输送到氧氯化反应器,其中存在于级分A和B中的大部分乙烯转化为1,2-二氯乙烷的反应器; 和g)将获得的1,2-二氯乙烷与衍生自氯化和氧氯化反应器的产物流分离。
    • 8. 发明申请
    • PROCESS FOR THE MANUFACTURE OF 1,2-DICHLOROETHANE
    • 1,2-二氯乙烷的制备方法
    • WO2008000705A1
    • 2008-01-03
    • PCT/EP2007/056268
    • 2007-06-22
    • SOLVAY (Société Anonyme)STREBELLE, MichelBALTHASART, Dominique
    • STREBELLE, MichelBALTHASART, Dominique
    • C07C17/02C07C19/045
    • C07C17/25C07C17/02C07C17/156C07C17/389C07C19/045C07C21/06C08F14/06Y02P20/582C08F2/02
    • Process for the manufacture of 1,2-dichloroethane starting from a stream of ethane according to which: a) the stream of ethane is subjected to a catalytic oxydehydrogenation producing a gas mixture containing ethylene, unconverted ethane, water and secondary constituents; b) said gas mixture is optionally washed and dried thus producing a dry gas mixture; c) after an optional addit io nal purification step, the dry gas mixture is then conveyed to a chlorination reactor supplied with a flow of chlorine so that at least 10% of the ethylene is converted to 1,2-dichloroethane; d) the 1,2-dichloroethane formed in the chlorination reactor is optionally isolated from the stream of products derived from the chlorination reactor; e) the stream of products derived from the chlorination reactor, from which the 1,2-dichloroethane has optionally been extracted, is conveyed to an oxychlorination reactor in which the majority of the balance of ethylene is converted to 1,2-dichloroethane, after optionally having subjected the latter to an absorption/desorption step e'), during which the 1,2-dichloroethane formed in the chlorination reactor is optionally extracted if it has not previously been extracted; f) the 1,2-dichloroethane formed in the oxychlorination reactor is isolated from the stream of products derived from the oxychlorination reactor and is optionally added to the 1,2-dichloroethane formed in the chlorination reactor; g) the stream of products derived from the oxychlorination reactor, from which the 1,2-dichloroethane has been extracted, optionally containing an additional stream of ethane previously introduced in one of steps b) to f), is optionally recycled to step a) after having been optionally purged of gases and/or after an optional addit ional treatment in order to eliminate the chlorinated products contained therein.
    • 从乙烷流开始制造1,2-二氯乙烷的方法,其中:a)乙烷流进行催化氧化脱氢,产生含有乙烯,未转化的乙烷,水和二级成分的气体混合物; b)任选地将所述气体混合物洗涤和干燥,从而产生干燥气体混合物; c)在任选的附加纯化步骤之后,将干燥气体混合物输送到提供有氯气流的氯化反应器,使得至少10%的乙烯转化为1,2-二氯乙烷; d)在氯化反应器中形成的1,2-二氯乙烷任选地与衍生自氯化反应器的产物流分离; e)来自氯化反应器的产物流,其中1,2-二氯乙烷已经从其中提取,被输送到氧氯化反应器中,其中大部分余量的乙烯被转化为1,2-二氯乙烷,之后是 任选地使后者进行吸收/解吸步骤e'),在此期间,如果先前没有提取过氯化反应器中形成的1,2-二氯乙烷可选地被提取; f)在氧氯化反应器中形成的1,2-二氯乙烷与衍生自氧氯化反应器的产物流分离,任选地加入到氯化反应器中形成的1,2-二氯乙烷中; g)来自氧氯化反应器的产物流,其中已经提取了1,2-二氯乙烷,任选地含有预先引入步骤b)至f)之一中的另外的乙烷流,任选地循环到步骤a) 在可选地清除气体之后和/或在任选的添加剂处理之后,以消除其中所含的氯化产物。
    • 9. 发明申请
    • PROCESS FOR THE MANUFACTURE OF 1,2-DICHLOROETHANE
    • 1,2-二氯乙烷的制备方法
    • WO2008000693A1
    • 2008-01-03
    • PCT/EP2007/056227
    • 2007-06-22
    • SOLVAY (Société Anonyme)STREBELLE, MichelBALTHASART, Dominique
    • STREBELLE, MichelBALTHASART, Dominique
    • C07C17/02C07C17/156C08F14/06C07C17/25
    • C07C17/25C07C17/02C07C17/156C07C19/045C07C21/06C08F2/10C08F14/06C08F14/12Y02P20/582
    • Process for the manufacture of 1,2-dichloroethane starting from a stream of ethane according to which: a) the stream of ethane is subjected to a catalytic oxydehydrogenation producing a gas mixture containing ethylene, unconverted ethane, water and secondary constituents; b) said gas mixture is optionally washed and dried thus producing a dry gas mixture; c) after an optional additional purification step, said dry gas mixture comprising the stream of products derived from the chlorination reactor R2 separated in step e) is subjected to an absorption A which consists of separating said gas mixture into a fraction enriched with the compounds that are lighter than ethylene containing some of the ethylene (fraction A) and into a fraction F1; d) fraction A is conveyed to a chlorination reactor R1 in which most of the ethylene present in fraction A is converted into 1,2-dichloroethane and the 1,2-dichloroethane obtained is separated from the stream of products derived from the chlorination reactor R1; e) fraction F1 is subjected to a desorption D1 which consists of separating fraction F1 into an ethylene fraction depleted of the compounds that are lighter than ethylene (fraction C) which is conveyed to a chlorination reactor R2, the stream of products derived from this reactor being added to the dry gas mixture subjected to step c) after having optionally extracted the 1,2- dichloroethane formed, and into a fraction F2; f) fraction F2 is subjected to a desorption D2 which consists of separating fraction F2 into a fraction enriched with ethylene (fraction B) and into a fraction F3, optionally containing the 1,2-dichloroethane formed in the chlorination reactor R2 then extracted, if it has not previously been extracted, which is recycled to the absorption A, optionally after an additional treatment intended to reduce the concentration, in fraction F3, of the compounds that are heavier than ethane; g) fraction B is conveyed to an oxychlorination reactor in which most of the ethylene present in fraction B is converted into 1,2-dichloroethane, the 1,2- dichloroethane obtained is separated from the stream of products derived from the oxychlorination reactor and is optionally added to the 1,2-dichloroethane formed in the chlorination reactor R1 and optionally to that formed in the chlorination reactor R2; and h) the stream of products derived from the oxychlorination reactor, from which the 1,2-dichloroethane has been extracted, optionally containing an additional stream of ethane previously introduced in one of steps b) to g), is optionally recycled to step a) after having been optionally purged of gases and/or after an optional treatment in order to eliminate the chlorinated products contained therein.
    • 从乙烷流开始制造1,2-二氯乙烷的方法,其中:a)乙烷流进行催化氧化脱氢,产生含有乙烯,未转化的乙烷,水和二级成分的气体混合物; b)任选地将所述气体混合物洗涤和干燥,从而产生干燥气体混合物; c)在任选的另外的纯化步骤之后,将包含源自步骤e)中分离的氯化反应器R2的产物流的所述干燥气体混合物经受吸收A,其包括将所述气体混合物分离成富含化合物的级分, 比含有一些乙烯(级分A)的乙烯轻,并且分馏成级F1; d)将馏分A输送到氯化反应器R1,其中将馏分A中存在的大部分乙烯转化为1,2-二氯乙烷,将得到的1,2-二氯乙烷与衍生自氯化反应器R1的产物流分离 ; e)级分F1经受解吸D1,其由将馏分F1分离成不足乙烯(馏分C)的化合物的乙烯馏分组成,其被输送到氯化反应器R2,源自该反应器的产物流 在任选地提取形成的1,2-二氯乙烷后加入到步骤c)的干燥气体混合物中,并加入到级分F2中; f)级分F2进行解吸D2,其由分离级分F2分成富乙烯(级分B)的级分,并且进入级分F3,任选地含有在氯化反应器R2中形成的1,2-二氯乙烷,然后萃取,如果 以前没有提取,其被再循环到吸收剂A中,任选地在旨在降低重量比乙烷的化合物的级分F3中的浓度的额外处理之后; g)馏分B输送到氧氯化反应器,其中存在于馏分B中的大部分乙烯转化成1,2-二氯乙烷,所得的1,2-二氯乙烷与源自氧氯化反应器的产物流分离,并且是 任选地加入到氯化反应器R1中形成的1,2-二氯乙烷中,任选地加入到氯化反应器R2中形成的1,2-二氯乙烷中; 和h)源自氧氯化反应器的产物流,其中已经从其中提取1,2-二氯乙烷,任选地含有先前在步骤b)至g)之一中引入的另外的乙烷流,任选地循环到步骤a ),或者在任选处理之后,为了消除其中所含的氯化产物。
    • 10. 发明申请
    • PROCESS FOR THE MANUFACTURE OF 1,2-DICHLOROETHANE
    • 1,2-二氯乙烷的制备方法
    • WO2006067193A1
    • 2006-06-29
    • PCT/EP2005/057049
    • 2005-12-21
    • SOLVAY (Société Anonyme)STREBELLE, MichelBALTHASART, Dominique
    • STREBELLE, MichelBALTHASART, Dominique
    • C07C17/02C07C17/156C07C19/045C07C21/06C07C17/25C08F14/06
    • C07C21/06C07C17/02C07C17/156C07C17/25C07C19/045Y02P20/582
    • Process for the manufacture of 1,2-dichloroethane starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a first cracking step, namely a pyrolysis step performed in a cracking oven, thus producing a mixture of cracking products; b) the said mixture of cracking products is subjected to a succession of treatment steps ending with a drying step which makes it possible to obtain a mixture of products containing ethylene and other constituents; c) the said mixture of products containing ethylene derived from step b) is separated into at least one fraction containing ethylene and into a heavy fraction; d) the fraction(s) containing the ethylene is (are) conveyed to a chlorination reactor and/or to an oxychlorination reactor, in which reactors most of the ethylene present is converted to 1,2-dichloroethane; e) the 1,2-dichloroethane obtained is separated from the streams of products derived from the chlorination and oxychlorination reactors; the process being characterized in that a step for hydrogenating the acetylene is carried out upstream of the drying step ending the succession of treatment steps constituting step b) and/or on at least one of the fractions containing ethylene after separation during step c).
    • 从烃源开始制造1,2-二氯乙烷的方法,其中:a)烃源进行第一裂化步骤,即在裂化炉中进行的热解步骤,从而产生裂化产物的混合物; b)所述裂化产物混合物经历一系列以干燥步骤结束的处理步骤,其可以获得含有乙烯和其它组分的产物的混合物; c)将来自步骤b)的含有乙烯的所述产物混合物分离成至少一个含有乙烯的馏分和重馏分; d)将含有乙烯的馏分输送到氯化反应器和/或氧氯化反应器,其中反应器将大部分乙烯转化为1,2-二氯乙烷; e)将获得的1,2-二氯乙烷与衍生自氯化和氧氯化反应器的产物流分离; 该方法的特征在于,在干燥步骤的上游进行氢化乙炔的步骤,其结束步骤b)的处理步骤和/或在步骤c)中分离后含有乙烯的馏分中的至少一个馏分。