Fischer-Tropsch synthesis (FTS) wax is a mixture of linear hydrocarbons with carbon number from C7 to C70+. Converting FTS wax into high-quality diesel (no sulfur and nitrogen contents) by hydrocracking technology is attractive in economy and practicability. Kinetic study of the hydrocracking of FTS wax in elementary step level is very challenging because of the huge amounts of reactions and species involved. Generation of reaction networks for hydrocracking of FTS wax in which the chain length goes up to C70 is described on the basis of Boolean adjacency matrixes. Each of the species (including paraffins
olefins and carbenium ions) involved in the elementary steps is represented digitally by using a (
N
+ 3)×
N
matrix
in which a group of standardized numbering rules are designed to guarantee the unique identity of the species. Subsequently
the elementary steps are expressed by computer-aided matrix transformations in terms of proposed reaction rules. Dynamic memory allocation is used in species storage and a characteristic vector with nine elements is designed to store the key information of a (
N
+ 3)×
N
matrix
which obviously reduces computer memory
consumption and improves computing efficiency. The detailed reaction networks of FTS wax hydrocracking can be generated smoothly and accurately by the current method. The work is the basis of advanced elementary-step-level kinetic modeling.
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相关作者
Chen Fan
Xindong Wang
Gaochao Li
Jian Long
Yaqi Qu
Hualiang An
Xinqiang Zhao
Yanji Wang
相关机构
Key Laboratory of Smart Manufacturing in Energy Chemical Process, Ministry of Education, East China University of Science and Technology
Hebei Provincial Key Laboratory of Green Chemical Technology and Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology