钢渣对京津冀地区典型罐底油泥热解影响

闾文; 贾晋炜; 张少飞; 张帆; 宋强; 顾秋香; 舒新前

doi:10.13205/j.hjgc.202010027

钢渣对京津冀地区典型罐底油泥热解影响

doi: 10.13205/j.hjgc.202010027

闾文¹,
贾晋炜¹,
张少飞²,
张帆³,
宋强⁴,
顾秋香⁵,
舒新前^3, ,

1. 中冶建筑研究总院有限公司, 北京 100088;
2. 扎赉诺尔煤业公司灵泉煤矿, 内蒙古呼伦贝尔 021410;
3. 中国矿业大学(北京)化学与环境工程学院, 北京 100083;
4. 青岛理工大学土木工程学院, 山东青岛 266033;
5. 国土资源部煤炭资源勘查与综合利用重点实验室, 西安 710000

基金项目:

国家自然科学基金项目（51074016，51074170）；钢铁工业环境保护重点实验室开放课题（Yzc2017Ky03）；国土资源部煤炭资源勘查与综合利用重点实验室开放研究课题（KF2019-5）；山东省博士后创新项目（202003113）；青岛市博士后研究人员应用研究项目（A2020-003）。

详细信息

作者简介:
闾文,男,工程师,主要研究方向为固体废物资源化利用。lvwen10@126.com

通讯作者:
舒新前(1963-),男,教授,主要从事固体废弃物处理与资源化研究。sxq@cumtb.edu.cn

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出版历程
- 收稿日期: 2019-09-25

INFLUENCE OF STEEL SLAG ON PYROLYSIS OF OIL TANK BOTTOM SLUDGE IN BEIJING-TIANJIN-HEBEI REGION

1. Central Research Institute of Building and Construction Co., Ltd, MCC Group, Beijing 100088, China;
2. Zhalainuoer Coal Co., Ltd, Ling Quan Coal Mine, Hulunbeier 021410, China;
3. School of Chemical & Engineering, China University of Mining and Technology, Beijing, Beijing 100083, China;
4. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;
5. Key Laboratory of Coal Resources Exploration and Comprehensice Utilization, Ministry of Land and Resources, Xi'an 710000, China

摘要

摘要: 为了研究钢渣对油泥热解产物的影响，以京津冀地区典型罐底油泥为研究对象，利用固定床反应器、热重分析仪对油泥热解条件及反应特性进行研究，通过单因素实验和响应面实验设计考察了热解终温、升温速率、停留时间和钢渣添加量等对热解产物产率的影响，采用气相色谱（GC）、气质联用（GC-MS）、扫描电镜（SEM）、红外光谱（FTIR）等对热解气体、热解回收油和热解焦表征，并对反应后固体残渣采用磁选的方式回收钢渣及分析物相组成（XRD）。热重分析（TG）表明：添加钢渣有利于油泥失重率增加。热解动力学计算表明，油泥单独热解和添加钢渣的反应的表观活化能分别为8.32，7.43 kJ/mol。固定床实验表明：当热解温度为550℃，升温速率为40℃/min，停留时间为30 min时，钢渣添加量为15%时，油泥热解回收油产率最高，达到16.03%。通过17组响应面实验设计，预测回收油产率最高可达16.12%。热解产物分析表明，添加钢渣提高了气体中H₂和CH₄产量增加，降低了CO₂产量。焦油的GC-MS分析表明，添加钢渣提高了焦油中低碳原子数成分含量。这证明了油泥和钢渣协同处置的可行性，可为热态钢渣与油泥的协同处置研究提供数据支撑。
- 罐底油泥 /
- 钢渣 /
- 热解
Abstract: In order to investigate the effects of steel slag on pyrolysis of oil sludge, the collaborative disposal of oil sludge and steel slag was proposed. We took typical steel slag and oil tank bottom sludge in Beijing-Tianjin-Hebei region as the experimental samples. The effects of the pyrolysis temperature, heating rate, residence time and addition amount of steel slag on pyrolysis products of oil tank bottom sludge in single factor experiments and response surface experiment were conducted using a fixed-bed reactor. In addition, the composition of pyrolysis gases and tar were investigated using GC, GC-MS, SEM and FTIR, respectively. The results showed that with the increase of the pyrolysis final temperature, heating rate and residence time, the pyrolysis tar yield increased first and then decreased. And the pyrolysis tar yield of oil sludge reached the maximum value as the temperature, heating rate and residence time reached 550 ℃, 40 ℃/min and 30min, respectively. Adding steel slag was conducive to increase the weightlessness rate of oil sludge, and the pyrolysis kinetics showed that the apparent activation energy were 8.32 kJ/mol and 7.43 kJ/mol, as the oil sludge pyrolysis (OS) and oil sludge pyrolysis with steel slag(OSSS), respectively. The addition of steel slag promoted the yield of pyrolysis tar and gas, and reduced char yield. The gas composition analysis indicated that steel slag could act as a catalyst in improving the H₂ and CH₄ content and reducing CO₂ content during the pyrolysis process of oil sludge. The addition of steel slag significantly increased the content of short alkanes and increased the C₅~C₁₀ fraction by improving the decomposition of the C₁₅~C₂₀ fraction. It was concluded that the integration of oil sludge pyrolysis with steel slag and the recovery of steel slag from the solid pyrolysis products of oil sludge containing steel slag could be feasible.
- oil tank bottom sludge /
- steel slag /
- pyrolysis

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