Risk degree grading method for fine chemical production process safety evaluation

Abstract

The invention provides a risk degree grading method for fine chemical production process safety evaluation, wherein the method relates to the field of organic chemical process safety evaluation. The risk degree grading method comprises the steps of 1), acquiring a parameter; 2), calculating an evaluation index; and 3), performing risk degree grading; performing progressive sequencing of five key temperatures of an operation temperature obtained based on the steps, a highest temperature which can be reached by a synthesizing reaction after cooling failure of a reaction system, an initial temperature for product instable decomposition, a highest temperature which can be bear by a reaction kettle caused by restriction of technological conditions and a final temperature in a heat insulation condition, thereby forming different types, and grading according to a risk degree index. The risk degree grading method has advantages of appropriately and accurately evaluating a thermal runaway riskof the synthesizing reaction, guiding an optimal process operation parameter of a chemical enterprise, making risk reducing measures, guiding the chemical enterprise to select and define the risk reducing measure, improving process safety and improving economic benefit of the enterprise.

Description

technical field [0001] The invention relates to a risk classification method for safety assessment of fine chemical production process, which relates to the field of organic chemical process safety assessment, and is a risk classification method for safety assessment of fine chemical production process. Background technique [0002] Fine chemical industry has become an indispensable part of human society. While it provides convenience, it also brings many dangers. In chemical enterprises, the complexity of the synthesis reaction process, the danger of chemical substances and the inherent danger of exothermic reactions make accidents happen frequently in some reaction devices. Once the reaction is thermally out of control, the temperature and pressure in the reactor will rise sharply, which will easily lead to fire, explosion, poisoning and other accidents. In order to reduce the possibility of thermal runaway and the severity of the consequences, our primary task is to acc...

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Problems solved by technology

The evaluation results exaggerate the risk of thermal runaway, which will bring a certain degree of economic loss to chemical companies

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