Control of reactive dividing wall column for selective hydrogenation and separation of C3 stream

Abstract

Abstract: In our previous work, the reactive dividing wall column (RDWC) was proposed and proved to be effective for selective hydrogenation and separation of C3 stream. In the present paper, the dynamics and control of the proposed RDWC are investigated. Four control structures including composition and temperature controls are proposed. The feed forward controllers are employed in the four control strategies to shorten the dynamic response time, reduce the maximum deviations and offer an immediate adjustment. The control structures are compared by applying them into the RDWC system with 20% disturbances in both the feed flow rate and the feed compositions, and the results are discussed.

Key words: Process control, C3 stream selective hydrogenation, Reactive dividing wall column

摘要： In our previous work, the reactive dividing wall column (RDWC) was proposed and proved to be effective for selective hydrogenation and separation of C3 stream. In the present paper, the dynamics and control of the proposed RDWC are investigated. Four control structures including composition and temperature controls are proposed. The feed forward controllers are employed in the four control strategies to shorten the dynamic response time, reduce the maximum deviations and offer an immediate adjustment. The control structures are compared by applying them into the RDWC system with 20% disturbances in both the feed flow rate and the feed compositions, and the results are discussed.

关键词: Process control, C3 stream selective hydrogenation, Reactive dividing wall column

CLC Number:

10.1016/j.cjche.2016.04.045

Xing Qian, Shengkun Jia, Yiqing Luo, Xigang Yuan, Kuo-Tsong Yu. Control of reactive dividing wall column for selective hydrogenation and separation of C3 stream[J]. , 2016, 24(9): 1213-1228.

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