Propylene and ethylene are the major raw chemical materials for organic chemical industry, which are mainly derived from hydrocarbon steamcrackingprocess.
丙烯、乙烯是重要的基本有机化工原料，且二者的市场需求日益旺盛，其主要来源是蒸汽裂解装置。
2
Naphtha is the main feedstock for steamcrackingprocess, therefore its property directly influences the yields of main cracking products and the operation cycle of cracking furnace.
石脑油作为蒸汽裂解工艺的主要原料，其性质直接影响裂解主要产品收率和裂解炉操作周期。
3
The technology of separating normal paraffins from the naphtha through the adsorption process was studied to optimize the steamcracking feedstock and utilize the naphtha resource properly.