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PROCESS FOR PRODUCING BUTADIENE FROM ETHANOL WITH IN SITU REGENERATION OF THE CATALYST OF THE SECOND REACTION STEP
PROCESS FOR PRODUCING BUTADIENE FROM ETHANOL WITH IN SITU REGENERATION OF THE CATALYST OF THE SECOND REACTION STEP
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机译:原位再生第二步反应的催化剂由乙醇生产丁二烯的方法
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摘要
The present invention relates to a process for producing butadiene from ethanol, in two reaction steps, comprising a step a) of conversion of the ethanol to acetaldehyde and a step b) of conversion to butadiene, said step b) simultaneously carrying out a reaction step and a regeneration step in (n+n/2) fixed-bed reactors, n being equal to 2 or to a multiple thereof, comprising a catalyst, wherein said regeneration step comprises 4 successive regeneration phases, said step b) also using a loop for regeneration of the inert gas and at least one loop for regeneration of the gas streams comprising oxygen.
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机译:用乙醇生产丁二烯的方法本发明涉及在两个反应步骤中由乙醇生产丁二烯的方法,包括步骤a)将乙醇转化为乙醛和步骤b)转化为丁二烯,所述步骤b)同时进行反应步骤。 (n + n / 2)个固定床反应器中的再生步骤,n等于2或其倍数,包含催化剂,其中所述再生步骤包括4个连续的再生阶段,所述步骤b)还使用回路用于再生惰性气体和至少一个回路用于再生包含氧气的气流。
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