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首页> 外文期刊>Journal of industrial and engineering chemistry >The basic study of methanol to gasoline in a pilot-scale fluidized bed reactor
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The basic study of methanol to gasoline in a pilot-scale fluidized bed reactor

机译：中试流化床反应器中甲醇制汽油的基础研究

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摘要

A fluidized bed reactor, used for methanol to gasoline (MTG), was designed followed the theory of gas-solid two-phase flow, and the effects of some factors, such as temperature, space velocity and the regeneration process, on the performance of MTG catalyst were systematically examined. The results show that: heat and mass transfer can be effectively conducted in the fluidized bed reactor; with the reaction temperature was increased, the methanol conversion rate maintained at 100% and the yield of gasoline gradually increased, then reached its highest value of 25.22% at 410 °C, after that it began to decline; and the C5 aromatics content increased with temperature and reached its maximum value of 49.86% at 430 °C. With the weight space velocity was increased, the yield of gasoline firstly increased and then decreased, while the C5 aromatics content was decreased; In addition, the effect of inner-regenerated process for used catalyst is very good. Low temperature can help to generate lighter olefin polymer, the higher extent of hydrogen transfer and cracking of large molecules at middle temperature, the carbon deposition reaction and aromatization reaction of low carbon olefin occurred at higher temperature, all of these contributed the above mentioned rules. While the weight space velocity acts on the performance of catalyst mainly via influencing the contact time and the carbon deposition reaction.
机译：根据气固两相流理论设计了流化床反应器，用于甲醇制汽油（MTG），并考虑了温度，空速和再生过程等因素对甲醇性能的影响。系统地检查了MTG催化剂。结果表明：在流化床反应器中可以有效地进行传热传质。随着反应温度的升高，甲醇的转化率保持在100％，汽油的收率逐渐提高，然后在410°C达到25.22％的最高值，此后开始下降。 C5芳烃含量随温度升高而增加，在430°C时达到最大值49.86％。随着空速的增加，汽油的收率先升高后降低，而C5芳烃含量降低。另外，内部再生过程对用过的催化剂的效果非常好。低温可以帮助生成较轻的烯烃聚合物，在中温下氢转移的程度更高，大分子的裂解程度更高，低碳烯烃的碳沉积反应和芳构化反应在较高的温度下发生，所有这些都有助于上述规则。而空速主要通过影响接触时间和碳沉积反应来影响催化剂的性能。

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