Uncertainty measurement theory based evaluation of inherent safety of chemical process

doi:10.16265/j.cnki.issn1003-3033.2018.05.020

Abstract

Abstract: To address the problem of subjectivity and uncertainty existing in the current chemical safety evaluation methods,the uncertainty measurement theory was introduced to establish an evaluation method of the inherent safety of the chemical process.Evaluation indexes involving material,the reaction and the process conditions were identified.The entropy theory and credible degree recognition were applied to determine the weights of the indexes and the process safety level respectively.And a comparison was made between the safety levels of different processes to choose the inherent safer one.This method was used to evaluate the inherent safety of five process routes.The results were basically consistent with those obtained by using the Dow's method and the Inherent Benign-ness Indicator (IBI).It indicates that the proposed evaluation method is feasible and effective.

Key words: uncertainty measurement theory, inherent safety level, entropy theory, credible degree recognition, chemical process evaluation

CLC Number:

X937

WEI Dan, JIANG Juncheng, NI Lei, SHEN Saili, FU Gang. Uncertainty measurement theory based evaluation of inherent safety of chemical process[J]. China Safety Science Journal, 2018, 28(5): 117-122.

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