3. Simulated Moving Bed ReactorXyle

3. Simulated Moving Bed Reactor

Xylene isomerization is a reaction of the type A$B. In this case, reaction cannot occur near the extract point if high purity is required, otherwise the reverse reaction will pollute the product and purity will always be below 99%. To overcome this situation, reactors are inserted between the adsorption columns far from the extract point [9,10]. However, since the minimum concentration required in the extract for this new confi guration is about
70 wt%, a much simpler configuration can be employed. Keeping the catalyst and adsorbent mixed inside the columns, it may produce a high enough p-xylene concentration stream to be further processed by the crystallization unit. This approach involves simpler operation and allows the direct contact between catalyst and adsorbent resulting in more efficient p-xylene withdraw as it is formed to overcome the thermodynamic equilibrium constraints.

結果 (中文) 1:

3.模拟移动床反应器二甲苯异构化反应是 A 型的 $B.反应在这种情况下，反应不能发生提取点附近，如果纯度高是需要，否则逆反应会污染产品纯度总是将低于 99%。为了克服这种情况，远离提取点 [9，10] 的吸附列之间插入反应堆。然而，由于所需的最低浓度提取物对这新的台 £ ¬ 且二级是关于70 ％，可以聘用很多简单的 configuration。保持的催化剂和吸附剂混合列内，它可能会产生结晶单位足够-二甲苯浓度流，有待于进一步处理的高。这种方法涉及到操作简单，允许催化剂之间的直接接触和吸附剂造成更多规避二甲苯撤回，它形成以克服热力学平衡限制。

結果 (中文) 3:

3。模拟移动床反应器

二甲苯异构化反应的类型是一美元在这种情况下，反应不能发生，提取点附近，如果需要的高纯度，否则逆反应会污染产品和纯洁永远是低于99%。为了克服这种情况，反应器插入吸附柱之间远离提取点[9,10]。然而，由于需要在提取新CONfi配置最低浓度约为
70重量%，更简单的控制可以采用fi配置。保持催化剂和吸附剂混合在列，有可能产生足够高的对二甲苯浓度流是由结晶单元进一步处理。这种方法操作简单，可以直接接触，导致更有效的催化剂fi对二甲苯吸附剂是形成有效克服热力学平衡的限制
撤回。