Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (2): 556-565.doi: 10.1016/j.cjche.2019.08.002

• Energy, Resources and Environmental Technology • Previous Articles     Next Articles

Robust online temperature estimation of a membrane-wall gasifier

Jianliang Xu, Qinfeng Liang, Zhenghua Dai, Xiaolei Guo, Haifeng Liu, Xin Gong   

  1. Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology, Shanghai 200237, China
  • Received:2019-04-15 Revised:2019-07-30 Online:2020-02-28 Published:2020-05-21
  • Contact: Haifeng Liu
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21878082, 21376082, U1402272 and 21776087), National Key Research Program of China (2017YFB0602604) and the Fundamental Research Funds for the Central Universities.

Abstract: The gasifier temperature is a key parameter in the operation of a slag-tapping entrained-flow gasifier. However, there is no effective method for measuring the operating temperature of a membrane-wall-lined gasifier. In this study, a novel robust method for estimation of the online temperature was developed for a membrane-wall gasifier and applied in an industrial SE gasifier. The industrial test results show that the method can estimate the gasifier temperature within 0.04 s, and its value can be reliably obtained. Based on the combination of bench-scale gasifier validation, commercial-scale gasifier operation experience, and the comparison of different simulation methods, the proposed method is accurate and reliable for measuring the operating temperature of a membrane-wall-lined gasifier.

Key words: Coal, Gasification, Temperature estimation, Slag, Membrane wall