Study on characteristics, hydrogen-rich gas, bio-oil production, and process optimization of co-pyrolysis of sewage sludge and wheat straw

被引：14

作者：

Xu, Guiying ^{[1
]}

Wang, Shan ^{[1
]}

Cai, Xinghui ^{[1
]}

Mei, Jiangnan ^{[1
]}

Zou, Haojun ^{[1
]}

Zhang, Li ^{[1
]}

Qian, Haifeng ^{[2
]}

机构：

[1] Chongqing Univ Technol, Coll Chem & Chem Engn, Chongqing 400054, Peoples R China

[2] Guanngxi Sci & Technol Normal Univ, Laibin 546100, Guangxi, Peoples R China

来源：

CASE STUDIES IN THERMAL ENGINEERING | 2023年 / 45卷

基金：

中国国家自然科学基金;

关键词：

Sewage sludge; Co-pyrolysis; Synergy; Bio-oil; Response surface method; Hydrogen; HEAVY-METALS; TRANSFORMATION BEHAVIORS; ENVIRONMENTAL RISK; COMBUSTION; KINETICS; TEMPERATURE; WASTE; BIOCHAR;

D O I：

10.1016/j.csite.2023.102888

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Sewage sludge (SS) and wheat straw (WS) are wastes that need to be treated urgently. In this research, the co-pyrolysis of SS and WS was investigated utilizing a thermogravimetric analyzer (TG) and a fixed bed. Using the Coats-Redfern approach, the effects of the mix ratio and the interactions of the SS and WS were investigated, and the effects of mix ratio, N2 flow rate, and pyrolysis temperature were examined for fixed bed pyrolysis. The response surface method (RSM) was applied in fixed bed pyrolysis to optimize the process. Increasing WS ratio can reduce py-rolysis residual rate to 23.8% for TG analysis. The reaction activation energy (E) increased with WS ratio. For the co-pyrolysis, there were substantial interactions between 200 and 400 degrees. For fixed bed pyrolysis, syngas and bio-oil yields were mainly affected by N2 flow rate and pyrolysis temperature. The components with the highest amount in bio-oil gradually changed from

引用

页数：14

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