Microwave catalytic co-pyrolysis of Chlorella vulgaris and rice straw over Cu/X (X = activated carbon, HZSM-5): Characteristics and bio-oil analysis

IF 6.7 1区工程技术 Q2 ENERGY & FUELS

Fuel Pub Date : 2024-11-11 DOI:10.1016/j.fuel.2024.133636

Dening Wei , Shiyuan He , Chunxiang Chen , Hongjian Ling , Shuai Zhou , Song Qiu

{"title":"Microwave catalytic co-pyrolysis of Chlorella vulgaris and rice straw over Cu/X (X = activated carbon, HZSM-5): Characteristics and bio-oil analysis","authors":"Dening Wei , Shiyuan He , Chunxiang Chen , Hongjian Ling , Shuai Zhou , Song Qiu","doi":"10.1016/j.fuel.2024.133636","DOIUrl":null,"url":null,"abstract":"<div><div>The weight loss characteristics, production distribution, and quality of bio-oil could be improved through catalytic co-pyrolysis of rice straw (<em>RS</em>) and <em>Chlorella vulgaris</em> (<em>CV</em>) under modified catalysts. Therefore, modified catalysts Cu/AC (activated carbon) and Cu/HZSM-5 were proposed. In this study, the effects of Cu/AC and Cu/HZSM-5 as modified catalysts on the microwave catalytic co-pyrolysis (<em>CV</em>:<em>RS</em> = 7:3) at different Cu loadings (1 wt%, 4 wt%, 7 wt%) and additive amounts (5 %, 10 %, 20 %, 30 %) were investigated. The results revealed that Cu/AC and Cu/HZSM-5 positively influenced bio-oil production and selectivity of hydrocarbons, but also prolonged the reaction time. At 10 % addition, 1 wt% Cu/AC exhibited the highest average weight loss rate (<em>R</em><sub>a</sub>) and the highest production of bio-oil (31.13 %). For Cu/HZSM-5, the highest production of bio-oil (28.37 %) was obtained with 7 wt% Cu/HZSM-5. Remarkably, the hydrocarbon content (57.22 %) in the bio-oil obtained from 4 wt% Cu/HZSM-5 was the highest among all groups.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"381 ","pages":"Article 133636"},"PeriodicalIF":6.7000,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fuel","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0016236124027856","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

The weight loss characteristics, production distribution, and quality of bio-oil could be improved through catalytic co-pyrolysis of rice straw (RS) and Chlorella vulgaris (CV) under modified catalysts. Therefore, modified catalysts Cu/AC (activated carbon) and Cu/HZSM-5 were proposed. In this study, the effects of Cu/AC and Cu/HZSM-5 as modified catalysts on the microwave catalytic co-pyrolysis (CV:RS = 7:3) at different Cu loadings (1 wt%, 4 wt%, 7 wt%) and additive amounts (5 %, 10 %, 20 %, 30 %) were investigated. The results revealed that Cu/AC and Cu/HZSM-5 positively influenced bio-oil production and selectivity of hydrocarbons, but also prolonged the reaction time. At 10 % addition, 1 wt% Cu/AC exhibited the highest average weight loss rate (R_a) and the highest production of bio-oil (31.13 %). For Cu/HZSM-5, the highest production of bio-oil (28.37 %) was obtained with 7 wt% Cu/HZSM-5. Remarkably, the hydrocarbon content (57.22 %) in the bio-oil obtained from 4 wt% Cu/HZSM-5 was the highest among all groups.

查看原文本刊更多论文

在 Cu/X（X = 活性炭，HZSM-5）上对小球藻和稻草进行微波催化共热解：特性和生物油分析

通过改性催化剂催化稻草（RS）和小球藻（CV）共热解，可改善生物油的失重特性、产量分布和质量。因此，提出了改性催化剂 Cu/AC（活性炭）和 Cu/HZSM-5。在本研究中，研究了 Cu/AC 和 Cu/HZSM-5 作为改性催化剂在不同的铜负载量（1 wt%、4 wt%、7 wt%）和添加剂量（5 %、10 %、20 %、30 %）条件下对微波催化共热解（CV:RS = 7:3）的影响。结果表明，Cu/AC 和 Cu/HZSM-5 对生物油的生产和碳氢化合物的选择性有积极影响，但同时也延长了反应时间。添加量为 10% 时，1 wt% 的 Cu/AC 表现出最高的平均失重率（Ra）和最高的生物油产量（31.13%）。就 Cu/HZSM-5 而言，7 wt% Cu/HZSM-5 的生物油产量最高（28.37%）。值得注意的是，4 wt% Cu/HZSM-5 获得的生物油中碳氢化合物含量（57.22%）是所有组中最高的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Fuel 工程技术-工程：化工

CiteScore

12.80

自引率

20.30%

发文量

3506

审稿时长

64 days

期刊介绍： The exploration of energy sources remains a critical matter of study. For the past nine decades, fuel has consistently held the forefront in primary research efforts within the field of energy science. This area of investigation encompasses a wide range of subjects, with a particular emphasis on emerging concerns like environmental factors and pollution.