褐煤基粉状活性焦制备小试试验初步研究

华电技术 ›› 2020, Vol. 42 ›› Issue (10): 81-87.

褐煤基粉状活性焦制备小试试验初步研究

1. 山东大学能源与动力工程学院；燃煤污染物减排国家工程实验室；环境热工技术教育部工程研究中心；山东省能源碳减排技术与资源化利用重点实验室，济南 250061；2. 德尔福（上海）动力推进系统有限公司，上海 200131；3. 华北水利水电大学电力学院，郑州 450045

出版日期:2020-10-25

Primary study on the pilot-scale experiment of preparation for powdered activated coke from lignite

1.School of Energy and Power Engineering，Shandong University；National Engineering Laboratory for Reducing Emissions
from Coal Combustion；Engineering Research Center of Environmental Thermal Technology of Ministry of Education；Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization，Jinan 250061，China；2.Delphi Shanghai Dynamics & Propulsion Systems Company Limited，Shanghai 200131，China；3.School of Electric Power，North China University of Water Resources and Electric Power，Zhengzhou 450045，China

Published:2020-10-25

摘要/Abstract

摘要： 活性焦烟气脱硫是资源化脱硫的主要技术之一，针对目前成型颗粒活性焦移动床脱硫工艺存在的活性焦
成本高的约束性问题，提出并开发了煤粉快速炭化活化一步法制备脱硫用粉状活性焦（以下简称粉焦）的工艺方
法。基于实验室基础研究数据搭建了 30 kg/h 级粉焦产量的小试试验装置及系统，进行了褐煤快速制备粉焦的初步
试验，并将小试结果与沉降炉机理试验结果比较分析。在小试条件下，蒙东褐煤制备粉焦的产率为 38%，低于机理
试验得率；粉焦孔隙以微孔为主，且微孔孔容及比表面积优于 2 组机理试验制得的粉焦；粉焦 2 h 的 SO2 吸附量（质量
分数）为 6.1%，低于 2 组机理试验结果，应为小试与机理粉焦粒径和孔隙结构差异导致；小试制焦副产热解气中可
燃气 CO+H2+CH4 的体积分数为 7.3%，高于 2 组机理试验热解气中可燃气的体积分数。小试结果初步验证了低阶煤
快速制备脱硫用粉焦工艺的可行性。

关键词: 烟气脱硫, 粉状活性焦, 褐煤, 小试, 热解气

Abstract: Flue gas desulfurization（FGD）using activated coke is one of the main technologies for sulfur recovery.In view of
the high cost of activated coke in the desulfurization process of the current shaped particle activated coke moving bed，a
one-step powdered activated coke（PAC）preparation process for FGD was proposed and developed，which can carbonize
and activate pulverized coal ly.Based on the basic research data from the laboratory，a pilot-scale experimental device and
system with a PAC output of 30 kg/h was built，and a preliminary test for the rapid preparation of PAC was made.
Comparative analysis of the results from the pilot-scale experiment and experimental study was conducted.Under the pilot-
scale experimental conditions，the PAC yield prepared from Mengdong lignite was 38%，lower than that under experimental
condition.The pores of the PAC from the pilot-scale experiment were mainly micropores，whose pore volume and specific
surface area were better than the PAC from two lab experiments. The adsorption capacity of PAC from the pilot-scale
experiment was 6.1% per two hours.It was lower than that in two lab experiments，which should be caused by the difference
in particle size and pore structure. The volume fraction of combustible components（CO+H2+CH4）in pyrolysis gas，a by-
product in PAC preparation process in the pilot-scale experiment，was 7.3%，higher than that in lab experiments.The results
of the pilot-scale experiments preliminarily verified the feasibility of the process of PAC rapid preparation from lignite.

Key words: flue gas desulfurization, powdered activated coke, lignite, pilot test, pyrolysis gas

王涛, 刘珂, 张振, 周滨选, 马春元 . 褐煤基粉状活性焦制备小试试验初步研究[J]. 华电技术, 2020, 42(10): 81-87.

WANG Tao, LIU Ke, ZHANG Zhen, ZHOU Binxuan, MA Chunyuan. Primary study on the pilot-scale experiment of preparation for powdered activated coke from lignite[J]. Huadian Technology, 2020, 42(10): 81-87.

[1]	林瑜. 脱硫塔内2种喷嘴喷淋特性及对塔壁影响的数值模拟[J]. 华电技术, 2020, 42(9): 16-25.
[2]	戴若薇, 赵瑞东, 秦建光, 陈天举, 吴晋沪. 热解半焦与褐煤掺烧及气体污染物排放特性 TG-FTIR 研究[J]. 华电技术, 2020, 42(7): 28-34.
[3]	许家菱, 鲍静静, 于江怀, 罗紫菱, 孙立成 . 湿法烟气脱硫系统中 Hg⁰再释放特性及离子液体脱汞研究[J]. 华电技术, 2020, 42(10): 41-47.
[4]	安东海 , 王鲁元 , 程星星 , 董勇 . 活性焦对汞的脱除性能研究[J]. 华电技术, 2020, 42(10): 48-55.
[5]	刘会平. 某热电厂玻璃钢烟囱内筒的铺层设计及现场制作[J]. 华电技术, 2019, 41(6): 72-75.
[6]	杨俊强，杨晓飞. 燃煤电厂脱硫主塔氧化风完全失去的影响和预控措施[J]. 华电技术, 2019, 41(12): 78-80.
[7]	刘忠轩，宁新宇，王亚顺，程石，郑敏聪. 电站锅炉褐煤掺烧现状及其影响研究分析[J]. 华电技术, 2019, 41(1): 77-79.
[8]	杨翮1，刘芳芳1，张曹清2，于兴亮2，刘兆斌3. 华润电力焦作有限公司湿法烟气脱硫工程净烟道支架的设计特点[J]. 华电技术, 2018, 40(6): 66-67.
[9]	杨俊强，薛明超，杨晓飞，田文慧. 电厂湿法烟气脱硫塔底结垢异常分析及解决措施[J]. 华电技术, 2017, 39(8): 67-69.
[10]	向小东，刘黎伟，赵海江，刘凯辉. 影响石灰石-石膏湿法烟气脱硫系统的物化参数[J]. 华电技术, 2017, 39(5): 66-69.
[11]	张方，方津，周江. 褐煤掺烧成本比对分析[J]. 华电技术, 2017, 39(4): 68-70.
[12]	孔明，周正一，罗子湛. 燃用劣质褐煤的600MW超临界循环流化床锅炉煤仓间布置设计优化[J]. 华电技术, 2017, 39(10): 30-31.
[13]	张利，张义江. 600MW直接空冷机组抽汽预干燥褐煤的热经济性分析[J]. 华电技术, 2016, 38(9): 48-51.
[14]	邓辉鹏. 陕西华电蒲城第二发电有限责任公司2×660MW机组超低排放改造[J]. 华电技术, 2016, 38(4): 61-62.
[15]	邓辉鹏. 火电厂烟气超低排放技术研究[J]. 华电技术, 2016, 38(2): 65-67.