Numerical Simulation of an Improved Updraft Biomass Gasifier Based on Aspen Plus

Fugang Zhu, Laihong Shen (), Pengcheng Xu, Haoran Yuan, Ming Hu, Jingwei Qi and Yong Chen
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Fugang Zhu: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
Laihong Shen: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
Pengcheng Xu: Everbright Environmental Research Institute (Shenzhen) Co., Ltd., Shenzhen 518000, China
Haoran Yuan: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Ming Hu: Everbright Environmental Research Institute (Shenzhen) Co., Ltd., Shenzhen 518000, China
Jingwei Qi: Everbright Environmental Research Institute (Shenzhen) Co., Ltd., Shenzhen 518000, China
Yong Chen: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China

IJERPH, 2022, vol. 19, issue 24, 1-11

Abstract: In this paper, numerical investigation and optimization is conducted upon an improved updraft gasifier which is expected to overcome the weakness of conventional updraft gasifier. The comprehensive Aspen Plus model of the improved updraft gasifier is based on the RYield and RCSTR reactor. The tar prediction model is constructed, and the yield of tar is determined by the volatile of biomass and gasification temperature. The Aspen Plus simulation results agree very well with experiment results for the product yields and gasification efficiency, which shows the accuracy of the Aspen Plus model. The tar content in syngas of the improved gasifier is proved to be much lower than that of the conventional one by this model. The inflection point of the gasification efficiency occurs when air ratio is 0.25, and the optimum steam proportion in the air is 7.5%. Such a comprehensive investigation could provide necessary information for the optimal design and operation of the improved updraft gasifier.

Keywords: biomass; improved updraft gasifier; simulation; Aspen Plus; gasification characteristics (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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