Pyro-gasification of Rice Husk to Bio-fuel

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-05-18 DOI:10.3311/ppch.21723

T. Kusworo, A. C. Kumoro, Habib Al-Aziz, D. P. Utomo

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引用次数: 0

Abstract

Rice husk is a promising candidate of sustainable biomass-based renewable energy source with a gross caloric content of around 19.73 MJ/kg. As an efficient thermo-conversion process, pyro-gasification has the potential to convert biomass into oil and gas fuels. However, the bio-oil and gas yields are strongly dependent on the pyro-gasification operating parameters. This study employed response surface methodology (RSM) based on central composite design (CCD) experiment to determine the optimum conditions for pyro-gasification of rice-husk. Three selected most influencing operating parameters, namely feed mass (g), nitrogen flow (mL/min), and reactor temperature (°C) were optimized through 16 individual experimental runs for their possible synergistic effects. The results show excellent model fitting criteria (R2 > 0.9 and R2-adj > 0.85) for bio-oil and gas product responses that proves the suitability of RSM based on CCD experiment for rice-husk pyro-gasification study. The optimized optimum condition for rice-husk pyro-gasification process was at 897 g of feed mass, 1.97 mL/min of N2 gas flowrate, and 593 °C of reaction temperature. These conditions allow the achievement of estimated bio-oil and gas product yield of 47.78% and 11.41%, respectively. The composition analysis revealed that the main component of bio-oil was C15 (unsaturated), whereas the gas products were C3–C4 . This study suggests that rice-husk pyro-gasification is capable to achieve maximum yield of bio-oil and gas products with low char generation.

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稻壳热解气化制生物燃料研究

稻壳是一种很有前途的可持续生物质可再生能源，其总热量约为19.73 MJ/kg。作为一种高效的热转化过程，热解气化具有将生物质转化为石油和天然气燃料的潜力。然而，生物油气产量在很大程度上取决于热解气化操作参数。本研究采用基于中心复合设计(CCD)实验的响应面法(RSM)确定稻壳热解气化的最佳工艺条件。选取影响最大的三个操作参数，即进料质量(g)、氮气流量(mL/min)和反应器温度(°C)，通过16个单独的实验来优化它们可能的协同效应。结果表明，生物油气产品响应的模型拟合标准R2 > 0.9, R2-adj > 0.85，证明了基于CCD实验的RSM对稻壳热解气化研究的适用性。稻壳热气化工艺的最佳工艺条件为897 g进料量，1.97 mL/min N2气体流量，反应温度593℃。在这些条件下，生物油气产率可分别达到47.78%和11.41%。组分分析表明，生物油主要成分为C15(不饱和)，气产物为C3-C4。该研究表明，稻壳热解气化能够实现低炭产率的生物油气产品的最大产量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.