利用下吹气化炉气化大麻废弃物生产富含 H2- 的合成气

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy Pub Date : 2024-10-10 DOI:10.1016/j.biombioe.2024.107417

Francisco Wendell Bezerra Lopes , Maria Rosiane de Almeida Andrade , Eduardo Lins de. Barros Neto , Jean-Michel Lavoie , Bruna Rego de Vasconcelos

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引用次数: 0

摘要

大麻产业的发展强调了可再生废物价值化的重要性，这些废物可用于生产可持续燃料。气化是一种有效的热化学工艺，可将生物质和废物转化为合成气，提供宝贵的可再生能源。在此背景下，本研究提出通过气化工艺对大麻废物（特别是大麻）进行价值评估，使用下吹气化炉和空气与蒸汽的混合物作为气化剂来生产合成气。对影响气化过程的主要操作参数（生物质/蒸汽比、当量比和温度）以及作为大麻废料预处理的蒸汽爆炸的影响进行了评估。在 S/B 比率为 1 ER = 0.25 和 T = 900 °C 时，所评估参数中的 H2、CO 浓度和 LHV 最高。在 H₂ 含量高于 40 % vol 的情况下，与其他生物质来源相比，气化工艺在大麻废弃物能源价值化方面具有巨大潜力。

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H2-rich syngas production from gasification of cannabis waste in a downdraft gasifier

The growth of the cannabis industry emphasizes the importance of valorizing renewable waste, which can be used to produce sustainable fuels. Gasification is an effective thermochemical process for converting biomass and waste into synthesis gas, providing a valuable renewable energy source. In this context, this study proposes the valorization of cannabis waste, specifically hemp, through the gasification process, using a downdraft gasifier and a mixture of air and steam as the gasifying agent to produce synthesis gas. The main operating parameters influencing the gasification process (biomass/steam ratio, equivalence ratio, and temperature) were evaluated, as well as the influence of the steam explosion as a pre-treatment of the cannabis waste. The highest H₂, CO concentrations, and LHV were observed among the evaluated parameters at an S/B ratio of 1 ER = 0.25 and T = 900 °C. With H₂ contents above 40 % vol, the gasification process demonstrated significant potential for energy valorization of cannabis waste compared to other biomass sources.

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来源期刊

Biomass & Bioenergy 工程技术-能源与燃料

CiteScore

11.50

自引率

3.30%

发文量

258

审稿时长

60 days

期刊介绍： Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.