发布时间：2024-06-22

文章标题：祝贺课题组博士后王红霞（Wang Hongxia）一作论文被Applied Energy期刊接收, Applied Energy 371 (2024) 123767

内容：

A new strategy to produce calcium carbide-acetylene from integrated multi-level low carbon construction driven by biomass

 

Hongxia Wang a , Xiaoli Li a , Zhen Wu a , Wei Shen c , Kai Chen c , Bingqing Hong c , Zaoxiao Zhang a,b,*

a School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China

b State Key Laboratory of Multiphase Flow in Engineering, Xi’an Jiaotong University, No.28 Xianning West Road, Xi’an 710049, China

c Yingde Gases (Shanghai) Co., Ltd, Level 10-15, Block A, Sunland International, No.999, Zhouhai Road, Pudong New Zone, Shanghai 200131, China

 

https://doi.org/10.1016/j.apenergy.2024.123767

 

 

Abstract

 

A highly efffcient and clean biomass energy-based calcium carbide-acetylene production system, including lowcarbon energy supply, solid waste recycling and cascade utilization of waste heat, has been developed for the conventional energy-intensive and highly polluting fossil fuel-dependent calcium carbide industry. This system supplies the carbide-acetylene production plant with energy from the gasiffcation of biomass and converts the plant’s solid waste carbide slag into the calcium feedstock required by the plant. The waste heat from the plant’s high-temperature exhaust gases is recycled and used via the multi-stage heat exchange, so that the energy cascade conversion and utilization is achieved. A simulation model of the plant is created in Aspen Plus, and a mathematical model for the biomass gasiffcation process and cycle compensation of the calcium source through the Fortran language is written and embedded. When calculating the carbon consumption and CO2e emissions of the system, it was found that the carbon consumption and CO2e emissions of the conventional process were 5.43 t Coal⋅t − 1 C2H2 and 2.25 t CO2e⋅t − 1 C2H2, respectively. However, the carbon consumption of the new process was reduced by 65.19%, and carbon emissions by 27.24% in comparison. The energy analysis shows that the energy efffciency of the system is 36.21% for the conventional process and 44.82% for the new processes. The exergy analysis of the effective energy shows that the exergy efffciency of the new process is 73.20%, which is 52.98% better than that of the conventional process. Introduction of an index, the levelized income of acetylene product (LIOA), to characterize the product income of the system. When the price of acetylene is between 2.23 $/kg and 4.19 $/kg, the LIOA for the conventional and the new processes are 1.41 $/kg to 3.38 $/kg and − 1.28 $/kg to 0.68 $/kg, respectively. It is worth noting that the critical price (PCC2H2 ) for products generating net revenue from the new process is 3.17 $/kg. This study is of great importance for the development of a low-carbon biomass-coupled calcium carbide-acetylene process.

 

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