煤的微波热解研究进展

doi:10.16085/j.issn.1000-6613.2016.s1.022

摘要/Abstract

摘要： 煤炭是我国的主要能源,煤的清洁高效利用是我国能源安全和生态环境建设的重要保障。热解是在温和条件下将煤转化为洁净的气体、液体和固体燃料,是改善煤炭利用、加工转化成清洁高效的二次能源的重要手段之一。微波作为一种新的加热方式在煤的热解方面的应用的优势越来越明显。本文概述了微波热解的机理与优点、微波吸收剂的应用以及国内外微波热解研究进展,得出了低阶煤介电常数较小,需要添加一定量的微波吸收剂才能达到热解温度;和常规热解相比,微波热解改变了物质的加热方式,改善了热解产物的品质,热解气中CO、H₂含量增加,焦油品质较好,提高了煤的热解效率。作为一种新型加热方式,微波技术为煤热解效率的提高提供了新的解决方案和思路。

关键词: 煤炭, 微波, 热解, 加热机理, 焦油

Abstract: As the main energy in China, the clean and efficient use of coal is an important guarantee for China's energy security and ecological environment construction.Pyrolysis is under mild conditions to convert coal into clean gas, liquid and solid fuel, which is one of the important means to improve coal utilization, process into clean and efficient secondary energy.The advantages of microwave as a new heating method in coal pyrolysis are becoming more and more obvious.This paper introduces the mechanism and advantages of microwave pyrolysis, the application of microwave absorber and both domestic and foreign research progress of microwave pyrolysis, it turns out that low rank coal dielectric constant is very small, so adding a certain amount of microwave absorber can achieve the pyrolysis temperature.Compared with conventional pyrolysis, the heating mechanism of the material is changed, the quality of the product is improved, pyrolysis gas CO, H₂ content increased, the quality of tar is better, and the thermal efficiency of coal is increased.As a new heating method, microwave technology provides a promising solution and ideal for improvement of coal pyrolysis efficiency.

Key words: coal, microwave, pyrolysis, heat mechanism, tar

中图分类号:

TQ536

李鹏, 刘全润, 方小可, 李海鹏. 煤的微波热解研究进展[J]. 化工进展, 2016, 35(S1): 130-134.

LI Peng, LIU Quanrun, FANG Xiaoke, LI Haipeng. Research progress of microwave pyrolysis for coal[J]. Chemical Industry and Engineering Progree, 2016, 35(S1): 130-134.

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