Process for preparing 1-amylene by separating C5 distillate of petroleum
A technology for petroleum carbon five fractions and pentene, which is applied in distillation purification/separation, organic chemistry, etc., can solve the problems of inability to utilize 1-pentene, and achieve the effects of improving comprehensive utilization methods, reducing waste, and high economic value
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[0025] 【Examples 1~10】
[0026] Separate the carbon five raw materials whose composition is listed in Table 1 according to the following process:
[0027] 1) The raw material is subjected to extractive distillation, and the extractant is N,N-dimethylformamide. The extractive distillation tower is a packed tower with a theoretical plate number of 40. The material is fed from the position of the 32nd plate, and the extractant is fed from the position of the 4th plate. The feed rate of the raw materials is 1.0kg / h. The operating pressure is normal pressure, and other distillation process conditions are listed in Table 2. C5 saturated hydrocarbon materials are discharged from the top of the tower, and materials enriched in 1-pentene and extractant are obtained from the bottom of the tower;
[0028] 2) The tower bottom material of process 1 is rectified to recover the extractant. The rectifying tower is a packed tower with a theoretical plate number of 20, and the raw material is fed f...
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