Integrated CO2-hydrothermal carbonization and high temperature steam gasification of bamboo feedstock: A comprehensive experimental study

Advances in Bamboo Science Pub Date : 2024-02-01 DOI:10.1016/j.bamboo.2024.100060

Hong Nam Nguyen

{"title":"Integrated CO2-hydrothermal carbonization and high temperature steam gasification of bamboo feedstock: A comprehensive experimental study","authors":"Hong Nam Nguyen","doi":"10.1016/j.bamboo.2024.100060","DOIUrl":null,"url":null,"abstract":"<div>This study investigated an integrated CO2-hydrothermal carbonization (CO2-HTC) and steam gasification of bamboo feedstock, an abundant biomass in Vietnam. Bamboo underwent CO2-HTC at 240 °C under 100% CO2 atmosphere with a biomass-to-water ratio of 1:4 and a residence time of 60 min. The resulting hydrochar served as feedstock for steam gasification at 900 °C under an atmosphere of 40% H2O and 60% N2. A parallel experiment using raw bamboo provided a basis for comparison. Results indicate notable enhancements in fixed carbon content, bulk density, and higher heating value of bamboo subsequent to CO2-HTC. The CO2-HTC bamboo displayed a higher maximum decomposition rate. Its char also showed quicker conversion, enhancing gasification efficiency. A syngas richer in both H2 and CO by 2% was also produced with CO2-HTC bamboo compared to the raw bamboo. The observed improvements in gasification performance suggest promising avenues for the more effective and sustainable utilization of bamboo in energy production.</div>","PeriodicalId":100040,"journal":{"name":"Advances in Bamboo Science","volume":"6 ","pages":"Article 100060"},"PeriodicalIF":0.0000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773139124000053/pdfft?md5=859e0fb2872ef5f6d101c812cc55cefb&pid=1-s2.0-S2773139124000053-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Bamboo Science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2773139124000053","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

This study investigated an integrated CO₂-hydrothermal carbonization (CO₂-HTC) and steam gasification of bamboo feedstock, an abundant biomass in Vietnam. Bamboo underwent CO₂-HTC at 240 °C under 100% CO₂ atmosphere with a biomass-to-water ratio of 1:4 and a residence time of 60 min. The resulting hydrochar served as feedstock for steam gasification at 900 °C under an atmosphere of 40% H₂O and 60% N₂. A parallel experiment using raw bamboo provided a basis for comparison. Results indicate notable enhancements in fixed carbon content, bulk density, and higher heating value of bamboo subsequent to CO₂-HTC. The CO₂-HTC bamboo displayed a higher maximum decomposition rate. Its char also showed quicker conversion, enhancing gasification efficiency. A syngas richer in both H₂ and CO by 2% was also produced with CO₂-HTC bamboo compared to the raw bamboo. The observed improvements in gasification performance suggest promising avenues for the more effective and sustainable utilization of bamboo in energy production.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

竹原料的二氧化碳热碳化和高温蒸汽气化一体化：综合实验研究

本研究调查了越南丰富的生物质--竹子原料的二氧化碳热碳化（CO2-HTC）和蒸汽气化综合工艺。竹子在 240 °C、100% CO2 气氛下进行 CO2-HTC，生物质与水的比例为 1:4，停留时间为 60 分钟。生成的水炭可作为原料，在 900 °C 的温度下，在 40% H2O 和 60% N2 的气氛中进行蒸汽气化。使用原竹进行的平行实验提供了比较的基础。结果表明，在 CO2-HTC 之后，竹子的固定碳含量、体积密度和热值都有显著提高。CO2-HTC 竹材的最大分解率更高。竹炭的转化速度也更快，从而提高了气化效率。与原竹材相比，CO2-HTC 竹材产生的合成气中 H2 和 CO 的含量均高出 2%。所观察到的气化性能改善表明，在能源生产中更有效、更可持续地利用竹子是一条大有可为的途径。

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分钟内获得全文去求助

来源期刊

Advances in Bamboo Science

CiteScore

0.90

自引率

0.00%

发文量