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Delayed coking technology as an important secondary oil processing , because of its less investment in equipment , the process is simple , mature technology , more and more attention . The delayed coking main fractionator absorption and stabilization system as delayed coker products separation unit , and currently there is improvement in product quality , energy saving , and its optimized design, has a certain practical significance . This article to a domestic petrochemical enterprises delayed coker project examples , an overview of the delayed coking process , the status quo and development trends . The delayed coking process analysis , process simulation software Aspen Plus establish an accurate model of the main fractionator and absorption stabilization system , and select the appropriate thermodynamic methods and algorithms to solve . Through the analysis of the simulation results , the data of the calculation result of the model and the actual production of the apparatus is very close to verify the reliability of the calculation of the simulation , the described model basically reflects the delayed coking process of the law can be used to simulate the coking process , and on this basis on actual production analysis , obtained its industrial production bottlenecks , optimized programs , simulation technology in the actual industry . The paper also puts forward an improved absorption - a stable process , by increasing the stability of gasoline and absorption pre-absorbed lean gas tank , enhanced absorption effects , and the use of Aspen Plus contrast simulation and analysis of the absorption and stabilization system found improved process than before modification absorber absorb about 6v% of the C3 component and reduces the feed the absorber of C3 component , thereby reducing the re- the absorber of diesel absorbent dosage , reducing the dry gas of C3 component content , and achieved good results.
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