Date of Publication:2004-01-01

Journal:化工学报

Institution:化工学院

Issue:9

Page Number:1550-1554

ISSN:0438-1157

Abstract:Environment impact (EI) is a multi-decision-making, multi-objective and multi-criteria system with uncertainties and ambiguities, and environment impact index (EII) of a chemical compound is difficult to calculate appropriately with traditional methods. In this paper, fuzzy optimal selection theory based on the concept of relative importance degree was adopted to determine relativity of the degree of environment impact of chemical compounds as EII, and environment impact assessment (EIA) of a chemical process was done with values of compounds EII to select alternatives that cause less pollution to the environment. It was useful in further process optimization. The paper presented a practical application to the treatment of process condensate in a synthesis ammonia plant to illustrate the procedure, and the calculation result demonstrated the feasibility, practicability, and effectiveness of the suggested method.

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