Characterisation of Liquid Derived from Pyrolysis Process of Charcoal Production in South of Thailand

iranica journal of energy and environment Pub Date : 2014-04-01 DOI:10.5829/IDOSI.IJEE.2014.05.02.10

A. Saad, S. B. Ratanwilai

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引用次数: 2

Abstract

Pyrolysis liquid obtained from local suppliers in Phatthalung Province, Thailand was separated in conventional vacuum distillation into light and heavy fractions. The physiochemical characteristics and thermal behaviour of the fractionated pyrolysis liquid were investigated. It was found that light fraction had higherwater content and stronger acidity than heavy fraction and pyrolysis liquid. The heating value of light fraction was lower than those of the pyrolysis liquid andhea vy fraction. The heating value of heavy portion was almost double that of the light fraction. The thermal behaviours of the pyrolysis liquid and the two fractions were determined. The light fraction had the highest decomposition rate and the lowest residual yield; in contrast to heavy fraction had slow weight loss through a wide range of temperatures and it had the highest residual yield. The chemical composition of the pyrolysis liquid and the two fractionswere analysed by GC-MS. The chemical distribution differed for the fractions and the pyrolysis liquid. The light fraction was dominated by acetic acid and the heavy fraction was mainly composed phenolic compounds.

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泰国南部木炭生产热解过程中产生的液体表征

从泰国Phatthalung省当地供应商获得的热解液在常规真空蒸馏中分离为轻馏分和重馏分。对分馏热解液的理化特性和热行为进行了研究。结果表明，轻馏分比重馏分和热解液具有更高的含水量和更强的酸性。轻馏分的热值低于热解液和重馏分的热值。重质部分的热值几乎是轻质部分的两倍。测定了热解液和两馏分的热行为。轻馏分分解速率最高，剩余产率最低;与重馏分相比，重馏分在较宽的温度范围内失重缓慢，剩余收率最高。采用气相色谱-质谱分析了热解液和两馏分的化学成分。馏分和热解液的化学分布不同。轻馏分以乙酸为主，重馏分以酚类化合物为主。

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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iranica journal of energy and environment

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