A Method for Evaluating the Energy Efficiency of Multiple Operations of an Ethylene Plant
An ethylene plant and practical technology, applied in the field of process modeling, can solve problems such as the complexity of multiple practical evaluations, achieve the effect of solving energy efficiency evaluation problems, and has a universal effect
Active Publication Date: 2020-01-10
石化盈科信息技术有限责任公司
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However, multiple practical evaluations under different working conditions are relatively complicated, and the above method is no longer applicable
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[0073] Such as Figure 1 to Figure 7 As shown, the method for evaluating the energy efficiency of multiple practical operations of an ethylene plant provided by the present invention clarifies the relevant calculation principles for evaluating the energy efficiency of practical operations of an ethylene plant, and provides a method for evaluating the multiple practical operations of the same working condition based on the average value and Realization method of energy efficiency evaluation of multiple practical operations under different working conditions based on one-time spline interpolation.
[0074] The method mainly includes the following steps:
[0075] Step 1) Determine the basic conditions for practical energy efficiency assessment of ethylene plants
[0076] For the evaluation of multiple practical operations of an ethylene plant, it is necessary to determine the operational variables, start time and end time of the practical operation.
[0077] Step 1.1 Determine ...
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The invention provides an ethylene plant multiple-practical-operation energy efficiency assessment method. After clarifying relevant calculation principles of practical operation efficiency evaluationof an ethylene plant, the invention provides a multiple-practical-operation assessment method under the same working condition and a multiple-practical-operation energy efficiency assessment realization method under different working conditions based on linear spline interpolation, as well as a benefit evaluation method based on equivalent oil quantity and a benefit evaluation method based on linear spline interpolation according to physical consumption amount. The assessment method can accurately evaluate the multiple-practical-operation total energy consumption and benefit of the ethylene plant under the same and different working conditions and can accurately evaluate energy consumption and benefit changes of energy mediums of fuel, steam, circulating water and electricity and the like, can help related personnel of enterprises to accurately evaluate actual effect of the ethylene plant after process optimization, and can provide important reference basis for improvement of an energy process optimization model of the ethylene plant.
Description
technical field [0001] The invention relates to the field of process modeling of petroleum, chemical industry, etc., in particular to a method for evaluating the energy efficiency of multiple practical operations of an ethylene plant. Background technique [0002] Energy saving and consumption reduction is the current focus of my country's process industry. The current energy-saving technology in the process industry has developed to the stage of energy-saving process systems. Process system energy saving refers to the energy saving work carried out from the perspective of rational energy use of the system related to energy conversion, recovery and utilization in the production process. The use of process system energy-saving technology to realize the overall process optimization of different types of equipment in petrochemical enterprises has become a key breakthrough direction for current equipment energy conservation. Especially in the chemical business sector, the ethy...
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IPC IPC(8): G01M99/00
CPCG01M99/005
Inventor 刘刚谌湘临张少宁
Owner 石化盈科信息技术有限责任公司