摘要
通过一系列实验，研究了固定床中工业ＦｅＣｕＫ催化剂上费托合成反应的规律。结果表明，反应温度、压力、原料气Ｈ２／ＣＯ等操作条件影响费托反应转化率、产物分布和产物的收率。随着操作温度（５０３～５４３Ｋ）的升高，ＸＣＯ＋Ｈ２、Ｃ１＋、Ｃ５＋均有明显的增加，碳氢化合物向轻组分方向偏移，产物中烯／烷比呈有规律的变化；随着压力的升高（１．０～３．０ＭＰａ），ＸＣＯ＋Ｈ２、Ｃ１＋、Ｃ２＋、Ｃ５增大，轻油（Ｃ２～Ｃ４）的组分含量也有增加趋势，但压力对烯烃、烷烃的选择性影响不同，压力增大产物中烯／烷比下降，有利于烷烃的生成；原料气Ｈ２／ＣＯ比亦较大程度地改变了ＦｅＣｕＫ催化剂上的产物分布和收率，原料气Ｈ２／ＣＯ比（１．０２～２．８３）升高可增大ＸＣＯ，产物中低碳烃含量上升，但Ｃ１＋和Ｃ５＋收率减少。本文还对铁基费托合成催化剂上伴随的水煤气变换反应的变化规律进行了探讨。
A series of experiments were carried out for describing the performance of FT synthesis over the industrial FeCuK catalyst It was found that reaction temperature, pressure and H 2/CO ratio of feed gas were the main factors influencing FT reaction conversion, products distributions and catalyst yields With temperature increasing from 503K to 543K, X CO+H 2 , yields of C + 1 , C + 5 increased greatly, and hydrocarbons distribution shifted toward light products The contents of C + 1 , C + 2 , C + 5 and C 2～C 4 hydrocarbons, expecially for paraffin in light oil, also increased when pressure increased from 1 09MPa to 3 02MPa, but olefin/paraffin (O/P) ratio decreased It was also found that products distribution and yields were changed with the increasing of H 2/CO ratio of feed gas As the H 2/CO ratio of feed gas increased from 1 02 to 2 83, CO conversion and the contents of light hydrocarbons increased, but the yields of C + 1 , C + 5 decreased Moreover, the WGS reaction has taken place simultaneously while FT reaction was investigated under different operation conditions
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1999年第1期40-44,共5页
Journal of Fuel Chemistry and Technology
关键词
铁系
费托合成
催化剂
水煤气变换反应
FischerTropsch synthsis, FeCuK catalyst, products distribution, water gas shift reaction
