Study of Advanced Process Control Technology and its Application for Ammonia-Based Flue Gas Desulfurization Process

Abstract:

As a new environmental-protection technology, large-scale ammonia-based Flue Gas Desulfurization (FGD) requires high control and process technology. The process of FGD almost includes all the operation units in chemical industry. In order to make the equipment adapt to some complex changes of original flue gas and operate on better work conditions like low energy consumption, optimum liquid/gas ratio, minimum water consumption, completely nitrites oxidization, the multivariable predictive control and soft sensor based on mechanism model are studied in this paper. And the results show that these problems of variables correlation, large delay and variables coupling of FGD are resolved. In addition, ammonia consumption is lower, by-products quality is improved, Besides, the process operation is more smooth and safe, so the equipment can run effectively and economically after carrying on advanced process control.

• Periodical: Advanced Materials Research (Volume 1039)
• Pages: 338-344
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1039.338
• Online since: October 2014
• Authors: Ren Chu He*, Xiao Jing Gu
• Keywords: Ammonia-Based Flue Gas Desulfurization, Environmental Protection, Mechanism Model, Multivariable Predictive Control, Soft Sensor

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