Propylene rectifying tower rectification adjusting method and device and computer readable storage medium
An adjustment method, technology of rectification tower, applied in the direction of separation method, chemical instrument and method, fractionation, etc., can solve the problems such as excessive propylene index in the tower reactor and limited adjustment means, and achieve the effect of reducing the loss of propylene
Active Publication Date: 2022-04-12
WANHUA CHEM GRP CO LTD
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Problems solved by technology
[0002] At present, in order to improve the rectification efficiency of the propylene rectification tower, the indicator control of the propylene rectification tower is mainly through adjusting the cold reflux and hot reflux at the top of the tower to reboil, and the The adjustment method is limited by the reboiler load distribution of the pre-demethanizer connected to the propylene rectification tower and the influence of the propylene heat pump compressor system. The adjustment method is limited, and the propylene index of the tower tank often exceeds the standard after the tower top index is qualified.
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[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.
[0041] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this docu...
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The embodiment of the invention provides a rectification adjustment method and equipment for a propylene rectification tower and a computer readable storage medium. The method comprises the following steps: based on the current feeding flow at the upper feeding position of a propylene rectifying tower, obtaining a pre-constructed curve relationship between the theoretical plate number of the propylene rectifying tower and the feeding saturation so as to respectively determine the optimal feeding saturation of a rectifying section and the optimal feeding saturation of a stripping section; the circulating water flow is adjusted according to the optimal feeding saturation degree of the rectifying section so as to adjust the feeding temperature of the upper feeding position; and adjusting the flow of a propylene heating source provided by the propylene rectifying tower according to the optimal feeding saturation of the stripping section so as to adjust the feeding temperature of the lower feeding position. In this way, the rectifying section and the stripping section of the propylene rectifying tower can reach the optimal saturation degree as far as possible, so that the optimal separation efficiency is achieved, the rectifying quality of propylene products is ensured, and propylene loss is reduced.
Description
technical field [0001] The disclosure relates to the field of propylene rectification towers, in particular to the technical field of rectification regulation. Background technique [0002] At present, in order to improve the rectification efficiency of the propylene rectification tower, the index control of the propylene rectification tower is mainly by adjusting the cold reflux and hot reflux at the top of the tower to reboil, and the adjustment method is limited by the pre-demethanizer connected to the propylene rectification tower The reboiler load distribution of the tower and the impact of the propylene heat pump compressor system have limited adjustment means, and the problem of exceeding the standard propylene index in the tower tank often occurs after the tower top index is qualified. Therefore, how to improve the rectification efficiency of the propylene rectification tower has become an urgent problem to be solved. Contents of the invention [0003] The disclos...
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Login to View More IPC IPC(8): B01D3/14B01D3/34C07C7/04C07C11/06
Inventor 吕武奎陈晓芳边潇潇孙正波李凤龙田锋利张小锋包雅洁
Owner WANHUA CHEM GRP CO LTD