Catalytic cracking transparent fractionating tower simulation calculation system based on process simulation software

Abstract

The invention belongs to the field of petroleum processing, and particularly relates to a catalytic cracking transparent fractionating tower simulation calculation system based on process simulation software. The catalytic cracking transparent fractionating tower simulation calculation system based on process simulation software comprises a real-time database module, a fractionating tower calculation module, a hydraulics calculation module, a Web user interface and a real-time information release module based on Flash, and is characterized in that a process model is built for the production process of a catalytic cracking transparent fractionating tower system through the process simulation software AspenPlus, so as to carry out simulation calculation. Compared with the prior art, the calculation system is based on a process simulation technology, and the catalytic cracking transparent fractionating tower simulation calculation system based on the process simulation software AspenPlus is established; an independent calculation module solving non-linear model is adopted; and real-time analog simulation is realized. According to a calculation result, real-time operation optimization opinions on a fractionating tower are presented.

Description

technical field [0001] The invention belongs to the field of petroleum processing, in particular to a catalytic cracking transparent fractionation tower simulation calculation system based on flow simulation software. Background technique [0002] Catalytic cracking unit is one of the main refining units, it is an important device for lightening heavy oil and producing liquefied gas, gasoline and diesel. In my country's refinery, the position of catalytic cracking unit is more prominent. There are nearly 100 sets of catalytic cracking units in the country, with a processing capacity of 150 megatons per year. [0003] The oil fractionation process is an important part of the catalytic cracking production process, which is related to the quality of the product. At present, scholars at home and abroad generally use the process simulation software Aspen Plus to study the production process of fractionation towers, hoping to achieve the purpose of saving energy, reducing consum...

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Problems solved by technology

[0007] In the process of realizing the present invention, the inventors have found that there are the following problems in the simulation calculation of the existing fractionation tower: (1) the emergence of new catalytic technology, the existing Aspen Plus fractionation tower flow simulation calculation method can not fully accurately reflect the new reaction process Changes; (2) The existing Aspen Plus fractionation tower process simulation calculation method is a general calculation method applicable to all catalytic cracking units, and cannot calculate the fractionation tower process operation according to the actual process level of the fractionation tower, processing plan and other individual conditions. (3) The existing Aspen Plus fractionation tower process simulation calculation method does not have a database system that reflects real-time changes in working conditions. For example, the connection between the real-time database and LIMS only estimates the flow parameters and temperature parameters of the fractionation tower feedstock based on the processing volume. , cannot reflect the actual real-time operation of the fractionation tower

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