Risk analysis and risk assessment method based on physicochemistry
A technology of physical chemistry and risk analysis, applied in data processing applications, instruments, resources, etc., can solve the problems of low probability of major accident hidden dangers and great difficulty of major potential risks
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Embodiment 1
[0048]Provide a risk analysis and risk assessment method based on physical chemistry, which embodies the organic combination of physical chemistry and safety assessment principles. This invention provides a practical idea and operation method, which can be used according to the actual project Situations play better this way.
[0049] The content of the invention is introduced in two parts:
[0050] 1. For the key points and guidelines of analysis and evaluation, see "Table 1 Key Points of Analysis and Evaluation, Guidelines and Results Judgment";
[0051] 2. Judgment criteria for analysis and evaluation results;
[0052] 1. Analysis and evaluation points, guidelines, and result judgment
[0053] According to the principles of safety evaluation and physical and chemical principles, 12 key parameters are carefully selected from hundreds of physical and chemical variables and parameters as key indicators for analysis and evaluation. These 12 key points cover all three branches ...
Embodiment 2
[0099] Taking the safety pre-evaluation of coal rock oil plant as an example
[0100] 1Introduction to the device
[0101] The design purpose of the coal rock oil pilot plant is to extract the oil matrix component (that is, the carbon component) in the coal powder, and provide raw materials for the downstream petrochemical equipment to use it. There is only one set of coal rock oil plant in my country, which is a new type of coal chemical plant with a scale of industrial pilot scale, producing 150,000 tons of kerosene slurry per year.
[0102] process such as figure 1 shown.
[0103] Because it is the first industrial pilot plant, it lacks design experience. The oilfield entrusted a Grade B safety evaluation agency to conduct a safety pre-assessment. After reading the evaluation report prepared by the agency, the oilfield leaders were worried and asked Sinopec Headquarters to entrust Qingdao Safety Engineering Research Institute to conduct a safety pre-assessment for the ...
Embodiment 3
[0119] Taking the alkylation reaction of ethylbenzene unit in styrene plant as an example
[0120] 1 Process principle of ethylbenzene production by alkylation reaction
[0121] The alkylation reaction produces ethylbenzene, which is an exothermic reaction. Main response:
[0122] C 2 h 4 +C 6 h 6 =C 6 h 5 C 2 h 5
[0123] Heat of reaction △H=-106.2kJ / mol
[0124] There is an acidic active center on the catalyst, which can adsorb ethylene molecules in dry gas and generate carbon positive ions L-CH 2 CH 2 + , and then undergo addition reaction with benzene to form ethylbenzene. This reaction is reversible, but under the reaction conditions, the forward reaction (alkylation) is more favorable than the reverse reaction (transalkylation).
[0125] 2 Analysis and evaluation results
[0126] The results of the analysis and evaluation are shown in the table below.
[0127] Table 5 Analytical evaluation results
[0128]
[0129]
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