化工进展 ›› 2021, Vol. 40 ›› Issue (S2): 421-433.DOI: 10.16085/j.issn.1000-6613.2021-0900

• 资源与环境化工 • 上一篇    下一篇

大庆多源含油污泥热解特性的对比

林法伟1(), 郑发1, 李建陶1, 吕雅慧1, 宋学峰2, 许成君2, 马文臣1, 陈冠益3()   

  1. 1.天津大学环境科学与工程学院,天津 300350
    2.大庆油田水务有限公司,黑龙江 大庆 163450
    3.天津商业大学机械工程学院,天津 300134
  • 收稿日期:2021-04-27 修回日期:2021-06-22 出版日期:2021-11-12 发布日期:2021-11-12
  • 通讯作者: 陈冠益
  • 作者简介:林法伟(1993—),男,博士,研究方向为有机固废热化学处理与污染控制。E-mail:linfawei@tju.edu.cn
  • 基金资助:
    大庆油田水务公司项目(2020GFW-0116)

Comparing pyrolysis characteristics of Daqing multi-source oil sludge

LIN Fawei1(), ZHENG Fa1, LI Jiantao1, LYU Yahui1, SONG Xuefeng2, XU Chengjun2, MA Wenchen1, CHEN Guanyi3()   

  1. 1.School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
    2.Daqing Oilfield Water Co. , Ltd. , Daqing 163450, Heilongjiang, China
    3.School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China
  • Received:2021-04-27 Revised:2021-06-22 Online:2021-11-12 Published:2021-11-12
  • Contact: CHEN Guanyi

摘要:

大庆油田是我国第一大油田,自1959年开采后已有50多年的发展历史,到2020年原油年产量已稳定到3000万吨左右。石油开采过程伴随大量含油污泥的产生,含油污泥属于危险废物,需要寻求安全清洁的处置方式。热解技术在实现无害减量的同时可实现油品资源的高效回收。本文对大庆油田不同来源含油污泥热解特性进行分析,为含油污泥处理方案选择提供理论依据。首先通过热重-红外-质谱(TG-FTIR-MS)联用测试了多源油泥样品的热解特性以及气体产物释放规律;然后采用固定床热解炉在600℃的终温下对多源含油污泥样品进行热解试验,得到三相产率;借助色谱-质谱联用(GCMS)、X射线衍射(XRD)和红外光谱(FTIR)测试对油相产物和固相产物进行详细分析。结果表明热解油以中低链烷烃为主,烯烃和醇含量相对较低,热解渣中主要以SiO2和CaCO3为主。

关键词: 大庆油田, 废物处理, 热解, 热力学, 污染物释放, 石油

Abstract:

Daqing Oilfield is the largest oilfield in China. It has a history of more than 50 years since it was exploited in 1959. By 2020, the annual output of crude oil has stabilized to about 30 million tons. A large amount of oily sludge is produced during oil exploitation. Oily sludge is a kind of hazardous waste the needs to be treated with safe and clean disposal approaches. Pyrolysis technology can realize harmless reduction and efficient recovery of oil resources. In this study, the pyrolysis characteristics of oil sludge from different sources in Daqing Oilfield are analyzed to provide theoretical basis for the selection of treatment techniques. Firstly, the pyrolysis characteristics and gas products releasing of oily sludge are evaluated by TG-FTIR-MS. Subsequently, the three-phase products distribution obtained from pyrolysis is conducted with a fixed bed pyrolysis furnace at the final temperature of 600℃. The oil and solid products are analyzed in detail by GCMS, XRD, and FTIR. Results demonstrate that the pyrolysis oil is mainly composed of medium and low chain alkanes, while olefins and alcohols are little. SiO2 and CaCO3 are the main components in the pyrolysis residue.

Key words: Daqing oilfield, waste disposal, pyrolysis, thermodynamics, pollutant release, petroleum

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