Experimental research on low-rank coal upgrading in a semi-industrialization units of external-heating multi-tube rotary machine

doi:10.16085/j.issn.1000-6613.2016.05.046

Chemical Industry and Engineering Progree ›› 2016, Vol. 35 ›› Issue (05): 1567-1574.DOI: 10.16085/j.issn.1000-6613.2016.05.046

• Applied technology • Previous Articles

Experimental research on low-rank coal upgrading in a semi-industrialization units of external-heating multi-tube rotary machine

WANG Hongyao, WU Jing, WANG Ruixue, CAO Mingjian, JIANG Rongquan

Shandong Tianli Drying Technology Co., Ltd., Jinan 250101, Shandong, China

Received:2015-11-02 Revised:2016-01-14 Online:2016-05-05 Published:2016-05-05

外热式多管回转低阶煤提质半工业化装置试验研究

王宏耀, 吴静, 王瑞雪, 曹明见, 姜荣泉

山东天力干燥股份有限公司, 山东济南 250101

通讯作者: 吴静,高级工程师。E-mail wujingsd@163.com
作者简介:王宏耀(1972-),男,本科,济南市青年学术带头人,长期从事干燥、节能、环保等技术及生产的研究开发工作,所参与研发的研究成果多次获得中国石油和化学工业协会科学技术一等奖、山东省科技进步一等奖等。
基金资助:
中小企业发展专项资金项目(SQ2013Z0C600008)。

Abstract

Abstract: This paper presents a low-rank coal (LRC) upgrading process by the external-heating multi-tube rotary equipment. In order to verify and optimize the operation conditions and process parameters, LRC from Heilongjiang was used for materials in the experiments. The results showed that: with the increase of process temperature, the volatiles in semi-coke decreased and the yields of tar increased in parabolic way, while the volatiles in semi-coke decreased and the yields of tar increased with time extension. The optimal process parameters based on the coal and test conditions were 535℃ and 30min for upgrading, with which the tar yield reached 12.54%, toluene-insoluble content in the tar was 1.65%, and gas calorific value was as high as 5044kcal/m³. The industrial equipment was testified by 72h continuous experiment which proved the industrialization feasibility.

Key words: external heated, rotary, low-rank coal, upgrading, semi industrialization

摘要： 提出了一种外热式多管回转低阶煤提质技术,建立了一套处理量50kg/h的半工业化试验系统。以黑龙江某地煤种为实验用煤,分析了提质温度和提质时间对提质效果的影响,获得了该系统运行的优化工艺参数,并分析了该工况条件下的提质产品指标。结果表明:随着提质温度的升高,半焦中挥发分含量逐渐减少,焦油的产率呈抛物线形式增加;随着提质时间延长,焦油中挥发分含量逐渐减少,焦油产率逐渐增加。在试验煤种及试验工况条件下的最佳提质工艺参数为:提质温度535℃,提质时间30min;焦油产率可达12.54%;焦油中的甲苯不溶物含量为1.65%,煤气热值可达5044kcal/m³。该装置的72h连续运行表明了该技术工业化的可行性,为工业化设计提供了参考。

关键词: 外热式, 回转, 低阶煤, 提质, 半工业化

CLC Number:

TK173

WANG Hongyao, WU Jing, WANG Ruixue, CAO Mingjian, JIANG Rongquan. Experimental research on low-rank coal upgrading in a semi-industrialization units of external-heating multi-tube rotary machine[J]. Chemical Industry and Engineering Progree, 2016, 35(05): 1567-1574.

王宏耀, 吴静, 王瑞雪, 曹明见, 姜荣泉. 外热式多管回转低阶煤提质半工业化装置试验研究[J]. 化工进展, 2016, 35(05): 1567-1574.

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Experimental research on low-rank coal upgrading in a semi-industrialization units of external-heating multi-tube rotary machine

外热式多管回转低阶煤提质半工业化装置试验研究

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