Amplifying prediction method for consequence of uncontrolled chemical reaction

A technology for chemical reactions and prediction methods, applied in computational theoretical chemistry, chemical process analysis/design, instruments, etc., can solve problems such as explosion, less application, temperature rise, etc., to achieve the effect of accurate prediction and easy timely response

Inactive Publication Date: 2019-01-04
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

However, for runaway reactions, when the size exceeds the small test level, the consequences of the runaway often include severe temperature rise, pressure rise or even explosion, and the consequences are unacceptable and unacceptable in the experimental process.
[0005] 2. Numerical s

Method used

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[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below.

[0022] The invention provides a method for amplifying and predicting the uncontrolled consequences of chemical reactions, which can accurately predict the uncontrolled consequences of chemical reactions.

[0023] The specific implementation is as follows:

[0024] A method for amplifying and predicting the consequences of uncontrolled chemical reactions, including the following steps:

[0025] (1) Carry out calorimetric experiments for the specific chemical process to identify possible material decomposition, secondary reactions and reactions that may cause out of control in the reaction process, and obtain reaction kinetic parameters (including activation energy and Refers to the former factor) and reaction rate.

[0026] (2) Perform a reaction runaway simulation experiment on the process flow on a larger-sized reaction simulation device. The size level is gener...

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Abstract

The invention discloses an amplifying prediction method for a consequence of uncontrolled chemical reaction. The method comprises the following steps that (1) a reaction kinetic parameter of uncontrolled reaction is obtained through calorimetric data of a laboratory-level reaction process; (2) a reaction uncontrolled characteristic parameter at a small-test level is obtained through a small-test-level reaction simulation device; (3) a numerical simulation model is established according to the reaction simulation device of step (2), and the reaction kinetic parameter obtained in step (1) is substituted into the model to calculate the reaction uncontrolled characteristic parameter; (4) the parameter obtained through the calculation in step (3) is compared with the parameter obtained in step(2) to correct a calculation model; (5) the corrected calculation model is applied to the reaction uncontrolled prediction of industrial devices. The prediction method can solve the simulation and prediction problems of a trigger condition, uncontrolled process and uncontrolled consequence of uncontrolled reaction of an existing industrial device chemical process.

Description

technical field [0001] The invention relates to the field of chemical process safety, in particular to a method for enlarging and predicting the consequences of uncontrolled chemical reactions. Background technique [0002] Because in the chemical process, chemical transformation occurs with the transfer of mass, heat and momentum, with the change of scale, the transfer of mass, heat and momentum will produce a gradient of change on the spatial scale and time scale, which is attributed to the "amplification effect" . The existence of the amplification effect causes essential changes in the characteristics of material flow, mechanical efficiency, and heat transfer rate. The control conditions and production laws obtained under small-scale reaction conditions may deviate, resulting in heat extraction failure, material accumulation, local hot spots, etc. Abnormal working conditions, such abnormal working conditions are an important reason for chemical reactions to go out of co...

Claims

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Application Information

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IPC IPC(8): G16C20/10G16C10/00
Inventor 费轶王振刚张晨张帆刘静如石宁
Owner CHINA PETROLEUM & CHEM CORP
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