Hydrogenation process for fluorocarbons
    11.
    发明授权
    Hydrogenation process for fluorocarbons 有权
    碳氟化合物的氢化方法

    公开(公告)号:US08129574B2

    公开(公告)日:2012-03-06

    申请号:US12550909

    申请日:2009-08-31

    IPC分类号: C07C17/00

    摘要: Disclosed is a process and apparatus for the catalytic hydrogenation of fluoroolefins to fluorocarbons where the reaction is carried out in a multi-tube shell and tube reactor. Reactions involving hydrogenation of fluoro-olefins are typically exothermic. In commercial processes where a fluoro-olefin C(n)H(2n−x)F(x) to C(n)H(2n−x+2)F(x) is hydrogenated (e.g. hexafluoropropylene to 236ea, 1225ye to 245eb, and the like), inadequate management or control of heat removal may induce excess hydrogenation, decomposition and hot spots resulting in reduced yields and potential safety issues. In the hydrogenation of fluoro-olefins, it is therefore necessary to control the reaction temperature as precisely as practical to overcome challenges associated with heat management and safety.

    摘要翻译: 公开了将氟烯烃催化氢化成碳氟化合物的方法和装置,其中反应在多管壳管式反应器中进行。 涉及氟代烯烃氢化的反应通常是放热的。 在氟化烯烃C(n)H(2n-x)F(x)至C(n)H(2n-x + 2)F(x)被氢化(例如六氟丙烯至236ea,1225ye至245eb) ,等等),不充分的除热控制或控制可能引起过度的氢化,分解和热点,导致产量降低和潜在的安全问题。 在氟代烯烃的氢化中,因此需要精确地控制反应温度以克服与热管理和安全相关的挑战。

    Integrated Process for Fluoro-Olefin Production
    12.
    发明申请
    Integrated Process for Fluoro-Olefin Production 有权
    氟烯烃生产的综合工艺

    公开(公告)号:US20110105807A1

    公开(公告)日:2011-05-05

    申请号:US12611288

    申请日:2009-11-03

    IPC分类号: C07C17/25

    摘要: Disclosed is a process for the manufacture of HFO-1234yf from TCP in three integrated steps that include hydrofluorination of TCP (tetrachloropropene) to HCFC-1233xf in the vapor phase followed by hydrofluorination of HCFC-1233xf to HCFC-244bb in the liquid phase which is then followed by dehydrochlorination in liquid or vapor phase to produce HFO-1234yf. The vapor phase hydrofluorination is carried out at a higher pressure than the liquid phase hydrofluorination, thereby eliminating the need for compression and/or intermediate recovery. Also, any HCl generated from this reaction is fed to the liquid phase hydrofluorination section to promote agitation and mixing. This results in a more economical process from an initial capital and operating cost versus conducting the 3-steps sequentially.

    摘要翻译: 公开了一种从TCP制造HFO-1234yf的方法,其包括在气相中将TCP(四氯丙烯)氢氟化为HCFC-1233xf,然后在液相中HCFC-1233xf氢氟化为HCFC-244bb的三个整合步骤 然后在液相或汽相中进行脱氯化氢以产生HFO-1234yf。 气相氢氟化在比液相氢氟化更高的压力下进行,从而不需要压缩和/或中间回收。 此外,将由该反应生成的任何HCl进料至液相氢氟化部分以促进搅拌和混合。 这导致了从初始资本和运营成本的更经济的过程,而不是依次执行3个步骤。

    Multi-stage multi-tube shell-and-tube reactor
    13.
    发明授权
    Multi-stage multi-tube shell-and-tube reactor 有权
    多级多管壳管式反应堆

    公开(公告)号:US08034308B2

    公开(公告)日:2011-10-11

    申请号:US12481107

    申请日:2009-06-09

    IPC分类号: B01J8/06

    摘要: A multi-stage, multi-tube, shell-and-tube reactor which contains reaction zones and interstage temperature control (cooling/heating) zones in series. The reactor has at least two types of zones which both contribute to removing or supplying heat to the system depending on the system's need. The reactor will have a group of reaction zones which contain tubes packed with catalyst to progress the reaction and remove or supply heat simultaneously. There are also a number of interstage temperature control (cooling/heating) zones which are designed to supply or remove heat to or from the system. The positioning, number, and design of the zones will depend on the amount of temperature control desired and exothermic or endothermic nature of the processes to be conducted in the reactor.

    摘要翻译: 包含反应区和级间温度控制(冷却/加热)区的多级,多管,管壳式反应器。 反应器具有至少两种类型的区域,这两个区域有助于根据系统的需要去除或供应热量。 反应器将具有一组反应区,其中包含装有催化剂的管,以进行反应并同时除去或提供热量。 还有一些级间温度控制(冷却/加热)区域,其设计用于向系统或从系统提供或移除热量。 区域的定位,数量和设计将取决于在反应器中进行的方法所需的温度控制量和放热或吸热性质。

    Hydrogenation Process for Fluorocarbons
    15.
    发明申请
    Hydrogenation Process for Fluorocarbons 有权
    氟碳化氢加氢工艺

    公开(公告)号:US20110054226A1

    公开(公告)日:2011-03-03

    申请号:US12550909

    申请日:2009-08-31

    IPC分类号: C07C19/08 B01J35/02

    摘要: Disclosed is a process and apparatus for the catalytic hydrogenation of fluoroolefins to fluorocarbons where the reaction is carried out in a multi-tube shell and tube reactor. Reactions involving hydrogenation of fluoro-olefins are typically exothermic. In commercial processes where a fluoro-olefin C(n)H(2n−x)F(x) to C(n)H(2n−x|2)F(x) is hydrogenated (e.g. hexafluoropropylene to 236ea, 1225ye to 245eb, and the like), inadequate management or control of heat removal may induce excess hydrogenation, decomposition and hot spots resulting in reduced yields and potential safety issues. In the hydrogenation of fluoro-olefins, it is therefore necessary to control the reaction temperature as precisely as practical to overcome challenges associated with heat management and safety.

    摘要翻译: 公开了将氟烯烃催化氢化成碳氟化合物的方法和装置,其中反应在多管壳管式反应器中进行。 涉及氟代烯烃氢化的反应通常是放热的。 在氟化烯烃C(n)H(2n-x)F(x)至C(n)H(2n-x | 2)F(x)被氢化(例如六氟丙烯至236ea,1225ye至245eb) ,等等),不充分的除热控制或控制可能引起过度的氢化,分解和热点,导致产量降低和潜在的安全问题。 在氟代烯烃的氢化中,因此需要精确地控制反应温度以克服与热管理和安全相关的挑战。

    Manufacturing process for HFO-1234ze
    16.
    发明授权
    Manufacturing process for HFO-1234ze 有权
    HFO-1234ze制造工艺

    公开(公告)号:US09255046B2

    公开(公告)日:2016-02-09

    申请号:US12125045

    申请日:2008-05-21

    摘要: Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3-pentafluorpropane (HFC-245fa), preferably by contact with a caustic solution, to a reaction product comprising cis-HFO-1234ze and trans-HFO-1234ze; and (b) contacting at least a portion, preferably substantially portion, and in certain embodiments substantially all of said reaction product with at least one isomerization catalyst to convert at least a portion, and preferably at least a substantial portion, of cis-HFO-1234ze in said reaction product to trans-HFO-1234ze.

    摘要翻译: 公开了形成HFO-1234ze的方法,以及用于形成包含HFO-1234ze的组合物的方法,通过(a)优选通过脱氟化氢转化五氟丙烷(HFC-245),优选1,1,1,3,3-五氟丙烷(HFC -245fa),优选通过与苛性碱溶液接触,加入到包含顺-HFO-1234ze和反-HFO-1234ze的反应产物中; 并且(b)使至少一部分,优选基本上部分,在某些实施方案中使基本上所有的所述反应产物与至少一种异构化催化剂接触,以将至少一部分,优选至少大部分的顺-HFO- 1234ze在所述反应产物中以反式HFO-1234ze。