费托合成催化剂还原技术研究 -

费托合成工艺能否成功运行的关键因素之一为催化剂及其还原工艺的选择。本文简要介绍了费托合成催化的种类及其应用领域。详细介绍了催化剂还原过程,包括催化助剂的影响、还原过程的晶态结构演化、还原动力学以及还原工艺。最后重点介绍了还原气氛、还原空速、还原温度以及还原压力等还原参数对费托催化剂合成性能的影响。结果表明:催化剂的还原过程呈现明显的多相还原复杂行为,合理的助剂添加和还原参数选择有利于提高催化剂的还原性、活性和产品选择性。 The success of Fischer-Tropsch synthesis process largely depends on the selection of catalysts and reduction process.Introduce the kinds of catalysts for Fischer-Tropsch synthesis and their application fields.Investigate the reduction process,containing the influence of catalytic promoter,crystalline structure evolution,reeduction kinetics and reduction technique.Research the influence of reduction atmosphere,airspeed,temperature and pressure on the synthesis performance of Fischer-Tropsch catalyst.The results show that,the synthesis presents obvious heterogeneous reduction behavior.Moderate promoter and reduction parameters can improve the reducibility,activity and selectivity of catalyst