摘要
中国低价煤储量丰富,而且自身挥发分较高,将其热解转化是一条科学的利用途径.选取5种典型低阶煤,在1 kg外热式固定床热解装置上进行热解试验,测定了热解水中挥发酚含量,并初步探讨了影响水中挥发酚含量的因素.结果表明：热解温度550～750℃,低阶煤热解水中挥发酚质量浓度为（1～9）×10^3mg/L,1kg煤样热解进入水中的挥发酚总量约为（1.0～2.0）× 10^3mg;氧含量和单位干燥无灰基煤样热解水中挥发酚总量并没有明显的相关性;随着热解温度的升高水中挥发酚质量浓度和总量基本呈上升趋势.
Low rank coal have a large proportion in China,and volatile matter of low rank coal is high,so pyrolysis is suitable for low rank coal.Choose five typical low rank coals,and conduct pyrolysis experiments with 1 kg extra-heated fixed bed pyrolysis equipment.Measure the volatile hydroxybenzene of pyrolysis water.The results show that,when the temperature increase from 550 ℃ to 750 ℃,for different coal the volatile Phenolic compounds in pyrolysis water is about 1× 10^3 mg/L to 9× 10^3 mg/L,and the total amount are about 1.0× 10^3 mg to 2.0× 10^3 mg.There is not obvious correlation between oxygen content （Odaf） and volatile hydroxybenzene total amount of per unit dry ash -free basis coal.The concentration and total amount of volatile hydroxybenzene in water increase with the rise of pyrolysis temperature.
出处
《洁净煤技术》
CAS
2014年第2期87-89,共3页
Clean Coal Technology
基金
国家自然科学基金资助项目(U1361122)
中国煤炭科工集团科技创新基金资助项目(2013ZD007)
煤炭科学研究总院技术创新基金资助项目(2012CX01)
关键词
低阶煤
热解水
挥发酚
氧含量
温度
low rank coal
pyrolysis water
volatile hydroxybenzene
oxygen content
temperature
