Simulation and Optimization of Multi-Nozzle Opposed Water Coke Slurry Gasifier at 1.5 MPa

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Abstract As the strict reaction mechanism model has not been used in the prediction optimization process of water coke slurry concentration and oxygen-coke ratio, the prediction process parameters largely deviate from the plant data. This article first established the model of the multi-nozzle opposed water coke slurry gasifier at 1.5 MPa using UniSim Design Gasifier reactor and plant data was used to calibrate coke slurry gasifier. The relative error of calibration results is less than 2%, and the effects of oxygen-coke ratio and water coke slurry concentration on coal gasification process parameters are studied. The results show that the coke slurry concentration and oxygen-coke ratio are the key factors affecting the coke slurry gasification process and crude syngas composition. The oxygen-coke ratio control range of the coke coal mixture is 0.95~1.10 through gasification calibration model and optimization analysis, which provides a theoretical basis for the practical guidance of coke slurry gasification process production.

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	Articles by authors
	He Shunde
	Tang Lei
	Zhao Feng
	Zhang Haojian

Keywords： UniSim Design； water coke slurry； oxygen-coke ratio； gasifier reactor

Received 2018-11-08;

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He Shunde, Tang Lei, Zhao Feng, Zhang Haojian.Simulation and Optimization of Multi-Nozzle Opposed Water Coke Slurry Gasifier at 1.5 MPa[J] Chemcial Industry and Engineering, 2019,V36(6): 65-71

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