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公开(公告)号:EP3225678A3
公开(公告)日:2018-01-03
申请号:EP17151967.1
申请日:2005-03-08
发明人: Long, Jun , Da, Zhijian , Li, Dadong , Wang, Xieqing , Shu, Xingtian , Zhang, Jiushun , Nie, Hong , Xie, Chaogang , Zhang, Zhigang , Wang, Wei
CPC分类号: C10G69/04 , C07C4/06 , C07C5/05 , C07C5/11 , C10G11/18 , C10G69/02 , C10G69/06 , C10G69/14 , C10G2300/1044 , C10G2300/1055 , C10G2300/107 , C10G2300/1074 , C10G2300/1077 , C10G2300/301 , C10G2300/4006 , C10G2300/4018 , C10G2300/4093 , C10G2300/44 , C10G2300/807 , C10G2400/20 , C10G2400/30
摘要: A process for producing light olefins and aromatics, which comprises reacting a feedstock by contacting with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone among the reaction zones downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone, separating the spent catalyst from the reaction product vapor, regenerating the separated spent catalyst and returning the regenerated catalyst to the reactor, and separating the reaction product vapor to obtain the desired products, light olefins and aromatics. This process produces maximum light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.
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公开(公告)号:EP3225678A2
公开(公告)日:2017-10-04
申请号:EP17151967.1
申请日:2005-03-08
发明人: Long, Jun , Da, Zhijian , Li, Dadong , Wang, Xieqing , Shu, Xingtian , Zhang, Jiushun , Nie, Hong , Xie, Chaogang , Zhang, Zhigang , Wang, Wei
CPC分类号: C10G69/04 , C07C4/06 , C07C5/05 , C07C5/11 , C10G11/18 , C10G69/02 , C10G69/06 , C10G69/14 , C10G2300/1044 , C10G2300/1055 , C10G2300/107 , C10G2300/1074 , C10G2300/1077 , C10G2300/301 , C10G2300/4006 , C10G2300/4018 , C10G2300/4093 , C10G2300/44 , C10G2300/807 , C10G2400/20 , C10G2400/30
摘要: A process for producing light olefins and aromatics, which comprises reacting a feedstock by contacting with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone among the reaction zones downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone, separating the spent catalyst from the reaction product vapor, regenerating the separated spent catalyst and returning the regenerated catalyst to the reactor, and separating the reaction product vapor to obtain the desired products, light olefins and aromatics. This process produces maximum light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.
摘要翻译: 一种生产轻质烯烃和芳族化合物的方法,该方法包括在至少两个反应区中通过与催化裂化催化剂接触使原料反应,其中第一反应区下游反应区中至少一个反应区的反应温度高于 与第一反应区相比,其重时空速低于第一反应区,将废催化剂与反应产物蒸气分离,再生分离的废催化剂并将再生的催化剂返回反应器, 反应产物蒸气以获得所需产物,轻质烯烃和芳族化合物。 该方法从重质原料中产生最大量的轻质烯烃如丙烯,乙烯等,其中丙烯的产率超过20重量%,并同时产生芳族化合物如甲苯,二甲苯等。
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