초록 |
The commercial technology of production light olefins through cracking reaction from these hydrocarbons is only known as the high temperature steam thermal cracking. In order to solve the defects of high energy consumption and low raw material utilization, a series of catalytic cracking technologies are developed. Although comparing with thermal cracking, the reaction temperature thereof is relatively reduced, it does not completely overcome the problem of high energy consumption and high methane production. Some researchers have studied on catalyst development for high-efficient transformation, while some efforts are also put on alternative way, such as, introducing some exothermic conversion processes for energy supply into the endothermic hydrocarbon cracking. In this study, the transformation of naphtha with and without methanol as co-feed was performed over HZSM-5 in a quartz reactor under the same reaction condition. Also, the effect of methanol on a hydrocarbon feed is investigated in more detail. By comparing the naphtha alone conversion with methanol mixing naphtha conversion, the change of in activation energy of naphtha was discussed. |