气固固循环流化反应器丁烯氧化脱氢制丁二烯

OXIDATIVE DEHYDROGENATION OF BUTENE TO BUTADIENE IN GAS - SOLID - SOLID CIRCULATING FLUIDIZATION REACTOR

研究了用B-02催化剂在气固固循环流化反应器内进行丁烯氧化脱氢制丁二烯的过程。实验结果表明,提出的工艺同目前工业中采用的绝热固定床工艺相比,丁烯的转化率可提高10％～20％,丁二烯的收率可提高10％～15％,水烯比可从16降至8。然后,基于热态实验和一维拟均相模型,通过质量和能量衡算,对热态条件下的固气两相质量流量比进行了研究,并进一步分析了气固固循环流化反应器内物流的移热特性。

The process of oxidative dehydrogenation of butene to butadiene catalyzed by B - 02 is studied in a Gas - Solid - Solid Circulating Fluidization Reactor (GSSCFR) . The experimental results showed that the conversion of butene can be increased by 10% ~ 20% , the yield of butadiene can be increased by 10% ~ 15% in GSSCFR against those in industrial adiabatic packed- bed reactor, and the steam -to - butene mole flux ratio can be reduced from 16 to 8. On the basis of the hot model experiments and one - dimensional pesudo - homogeneous model, the hot model powder - to - gas mass flow ratios are studied with mass and energy balance. Furthermore, the characteristcs of removing reaction heat by the heat carriers are analyzed.