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21.发明授权
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22.发明授权Process for preparing styrene by dehydrogenation of ethylbenzene and reaction system which can be used for the process 有权一种用于通过乙苯和系统的脱氢制备苯乙烯方法可以在本方法中可以使用
公开(公告)号：EP1209140B1
公开(公告)日：2004-06-02
申请号：EP01204467.3
申请日：2001-11-21
CPC分类号： B01J8/065 , B01F5/06 , B01J8/0292 , B01J8/0453 , B01J2208/00061 , B01J2208/00212 , B01J2208/00548 , B01J2208/0084 , B01J2208/00849 , C07C5/333 , Y10S585/921 , Y10S585/922 , Y10S585/923 , Y10S585/924 , C07C15/46
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23.发明公开A method for stabilizing vinyl aromatic monomers using selected polymerization inhibitors and polymers prepared therewith 有权一种用于使用由其制备选定的聚合抑制剂和聚合物稳定乙烯基芳香族单体的方法
公开(公告)号：EP1362838A3
公开(公告)日：2004-03-24
申请号：EP03076188.6
申请日：2003-04-22
发明人： Merrill, James T.
IPC分类号： C07C15/46 , C07C7/20 , C08F112/08
摘要： Disclosed is the observation that 7-aryl-quinone methides and 4-tert-butylcatechol, when used in combination in a vinyl aromatic monomer to inhibit polymerization, do not inhibit polymerization to the same extent as each would if used separately. Stated another way, a phenomenon has been observed that when these two compounds are used together, they can, to a large extent, render each other unable to inhibit polymerization in a vinyl aromatic monomer. Also disclosed are methods of preventing adverse results of this interaction when undesired and a method of using this interaction to prepare a reactive vinyl aromatic monomer having a concentration of 4-tert-butylcatechol that would otherwise inhibit polymerization. The invention is disclosed to be useful with the production and storage of any vinyl aromatic monomer and is disclosed to be particularly useful with the production and storage of styrene monomer.
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24.发明公开A method for stabilizing vinyl aromatic monomers using selected polymerization inhibitors and polymers prepared therewith 有权一种用于使用由其制备选定的聚合抑制剂和聚合物稳定乙烯基芳香族单体的方法
公开(公告)号：EP1362838A2
公开(公告)日：2003-11-19
申请号：EP03076188.6
申请日：2003-04-22
发明人： Merrill, James T.
IPC分类号： C07C15/46 , C07C7/20 , C08F112/08
摘要： Disclosed is the observation that 7-aryl-quinone methides and 4-tert-butylcatechol, when used in combination in a vinyl aromatic monomer to inhibit polymerization, do not inhibit polymerization to the same extent as each would if used separately. Stated another way, a phenomenon has been observed that when these two compounds are used together, they can, to a large extent, render each other unable to inhibit polymerization in a vinyl aromatic monomer. Also disclosed are methods of preventing adverse results of this interaction when undesired and a method of using this interaction to prepare a reactive vinyl aromatic monomer having a concentration of 4-tert-butylcatechol that would otherwise inhibit polymerization. The invention is disclosed to be useful with the production and storage of any vinyl aromatic monomer and is disclosed to be particularly useful with the production and storage of styrene monomer.
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25.发明公开Heat exchange integration in alkylation/transalkylation process 失效Verfahren zur Alkylierung und Transalkylierung mit integriertenWärmeaustausch
公开(公告)号：EP0839784A1
公开(公告)日：1998-05-06
申请号：EP97203307.0
申请日：1997-10-24
IPC分类号： C07C15/02
CPC分类号： C07C15/02 , C07C2529/06 , Y02P20/582
摘要： The present invention addresses heat integration in an alkylation/transalkylation process involving alkylation of an aromatic substrate with a C 2 -C 4 alkylating agent coupled with separation to recover a monoalkylated aromatic product and liquid phase transalkylation of a polyalkylated product. Aromatic feedstock and a C 2 -C 4 alkylating agent are supplied to an alkylation reaction zone which is operated to produce an alkylated product. The output from the alkylation reaction zone initially travels through an arrangement of heat exchangers. From there, the alkylation effluent passes into the first separation zone which is operated to produce a lower boiling fraction comprising the aromatic substrate, which may be recycled to the alkylation reaction zone, and a higher boiling fraction comprising a mixture of monoalkylated and polyalkylated aromatics. This lower boiling fraction first travels back through portions of the heat exchanger arrangement on the way to recycle into the alkylation zone. The higher boiling fraction of the first separation zone is supplied to a secondary separation zone to produce a second lower boiling fraction comprising the desired monoalkylated product and a higher boiling fraction comprising polyalkylated product. At least a portion of the higher boiling polyalkylated fraction passes through a portion of the heat exchanger arrangement into a transalkylation reaction zone containing a molecular sieve transalkylation catalyst operated under liquid phase conditions to cause disproportionation of the polyalkylated fraction to arrive at a disproportionation product having a reduced polyalkylated aromatic content and an enhanced monoalkylated aromatic content.
摘要翻译： 本发明涉及烷基化/烷基转移方法中的热积分，其包括用分离的C2-C4烷基化剂芳族底物烷基化以回收单烷基化芳族产物和多烷基化产物的液相烷基转移。 将芳香原料和C 2 -C 4烷基化剂供给到烷基化反应区，其操作以产生烷基化产物。 烷基化反应区的输出首先通过热交换器的布置。 从那里，烷基化流出物进入第一分离区，其被操作以产生包含可以再循环到烷基化反应区的芳族底物的较低沸点馏分，以及包含单烷基化和多烷基化芳族化合物的混合物的较高沸点馏分。 该低沸点馏分首先通过热交换器装置的一部分在回收进入烷基化区的路上返回。 将第一分离区的较高沸点馏分供应到第二分离区以产生包含所需单烷基化产物和包含多烷基化产物的较高沸点馏分的第二较低沸点馏分。 高沸点多烷基化馏分的至少一部分通过热交换器装置的一部分进入含有在液相条件下操作的分子筛烷基转移催化剂的烷基转移反应区，以引起多烷基化馏分的歧化，得到具有 降低的多烷基化芳族含量和增强的单烷基化芳族含量。
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26.发明公开Process for the alkylation of aromatic hydrocarbons with recycle of reactor effluent 失效一种用于芳烃烷基化过程中与反应器流出物返回中转
公开(公告)号：EP0826653A1
公开(公告)日：1998-03-04
申请号：EP96113909.4
申请日：1996-08-30
IPC分类号： C07C2/66 , C07C15/073
摘要： A process for the production of an alkylated aromatic hydrocarbon such as ethylbenzene by alkylation of benzene with an olefin such ethylene, propylene, 1-butene or isobutene with a catalyst in an alkylation reactor under liquid or gas phase conditions includes alkylating benzene with an olefin in a reaction zone at a temperature of from about 175°C. to about 500°C. and a pressure of from about 200 psi to about 800 psi, withdrawing a reactor effluent stream and separating the reactor effluent stream into a product stream and a recycle stream each containing ethylbenzene and unreacted benzene and directing the recycle stream containing ethylbenzene and unreacted benzene back to the reaction zone wherein the ratio of the liquid volume of the recycle stream to the volume of fresh benzene feed is from 0.1:1 to 50:1.
摘要翻译： 一种生产烷基化的芳族烃的方法：例如通过与在烯烃搜索乙烯，丙烯，1-丁烯或异丁烯与液相或气相条件下的烷基化反应器中在催化剂烷基化苯乙苯包括用在烯烃在烷基化苯 在约175℃至约500℃的温度的反应区，并从约200psi至约800psi的压力，回抽的反应器流出物物流与反应器流出物流分离成产品物流和循环 流各自含有乙苯和未反应的苯和引导含乙苯和未反应的苯回至反应区worin再循环流至新鲜的苯原料的体积的液体体积的比为0.1的循环流：1至50：第一
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27.发明公开Process for dehydrogenation of ethylbenzene to styrene 失效Verfahren zur Dehydrogenierung von Ethylbenzol zu Styrol
公开(公告)号：EP0752402A1
公开(公告)日：1997-01-08
申请号：EP96109098.2
申请日：1996-06-06
CPC分类号： C07C5/3332 , C07C2523/745 , C07C15/46
摘要： A method of dehydrogenating ethylbenzene to styrene and aromatics, said method comprising passing ethylbenzene over dehydrogenation catalyst beds in a plurality of serially-arranged dehydro reactors, wherein at least the first of said reactors contains a high-selectivity dehydro catalyst, and at least the last of said reactors contains a low-selectivity dehydro catalyst.
摘要翻译： 一种使乙苯脱氢成苯乙烯和芳族化合物的方法，所述方法包括将乙苯通过多个连续排列的脱氢反应器中的脱氢催化剂床，其中至少第一个反应器含有高选择性脱氢催化剂，至少最后一次 的所述反应器包含低选择性脱氢催化剂。
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公开(公告)号：EP0747335A1
公开(公告)日：1996-12-11
申请号：EP96109104.8
申请日：1996-06-07
摘要： Disclosed is a system and a process for cleanly handling the vent gas by-products of the dehydrogenation reaction of monovinyl aromatic compounds which process involves the use of polymerization inhibitor injected into the vent gas prior to its entry into the vent gas compressor.
摘要翻译： 公开了用于清洁处理单乙烯基芳族化合物的脱氢反应的排气副产物的系统和方法，该方法涉及在进入排气压缩机之前使用聚合抑制剂注入排气中。
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