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考虑炭和焦油的情况下，使用热力学平衡模型对椰子壳热化学气化制氢的分析。

Analysis of Hydrogen Generation through Thermochemical Gasification of Coconut Shell Using Thermodynamic Equilibrium Model Considering Char and Tar.

作者信息

Rupesh Shanmughom, Muraleedharan Chandrasekharan, Arun Palatel

机构信息

Department of Mechanical Engineering, National Institute of Technology Calicut, Calicut, Kerala 673601, India.

出版信息

Int Sch Res Notices. 2014 Nov 4;2014:654946. doi: 10.1155/2014/654946. eCollection 2014.

DOI:10.1155/2014/654946
PMID:27433487
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4897074/
Abstract

This work investigates the potential of coconut shell for air-steam gasification using thermodynamic equilibrium model. A thermodynamic equilibrium model considering tar and realistic char conversion was developed using MATLAB software to predict the product gas composition. After comparing it with experimental results the prediction capability of the model is enhanced by multiplying equilibrium constants with suitable coefficients. The modified model is used to study the effect of key process parameters like temperature, steam to biomass ratio, and equivalence ratio on product gas yield, composition, and heating value of syngas along with gasification efficiency. For a steam to biomass ratio of unity, the maximum mole fraction of hydrogen in the product gas is found to be 36.14% with a lower heating value of 7.49 MJ/Nm(3) at a gasification temperature of 1500 K and equivalence ratio of 0.15.

摘要

本研究利用热力学平衡模型研究了椰壳用于空气-蒸汽气化的潜力。使用MATLAB软件开发了一个考虑焦油和实际焦炭转化的热力学平衡模型，以预测产物气组成。将其与实验结果进行比较后，通过将平衡常数乘以合适的系数来提高模型的预测能力。改进后的模型用于研究温度、蒸汽与生物质比、当量比等关键工艺参数对合成气产物气产率、组成、热值以及气化效率的影响。对于蒸汽与生物质比为1的情况，在气化温度为1500K、当量比为0.15时，产物气中氢气的最大摩尔分数为36.14%，低热值为7.49 MJ/Nm³。

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本文引用的文献

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Gasification of biomass in a fixed bed downdraft gasifier--a realistic model including tar.固定床下吸式气化炉中生物质的气化 - 一个包含焦油的现实模型。
Bioresour Technol. 2012 Mar;107:505-11. doi: 10.1016/j.biortech.2011.12.124. Epub 2012 Jan 2.
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Generation of hydrogen rich gas through fluidized bed gasification of biomass.通过生物质流化床气化生成富氢气体。
Bioresour Technol. 2011 Jan;102(2):1907-13. doi: 10.1016/j.biortech.2010.08.015. Epub 2010 Aug 6.
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Modeling biomass gasification using thermodynamic equilibrium approach.
采用热力学平衡方法对生物质气化进行建模。
Appl Biochem Biotechnol. 2009 May;154(1-3):14-25. doi: 10.1007/s12010-008-8483-x. Epub 2009 Jan 27.
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An experimental study on biomass air-steam gasification in a fluidized bed.流化床中生物质空气-蒸汽气化的实验研究
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