Study on influence of CaO during thermal desorption products of oil-based drilling cuttings

被引：0

作者：

Xu S. ^{[1
,2
,3
]}

Wang C. ^{[1
]}

Li Q. ^{[1
]}

Zhang B. ^{[1
]}

Xu S. ^{[1
,2
,3
]}

Zhang X. ^{[1
]}

Wang S. ^{[1
]}

Cong M. ^{[1
]}

机构：

[1] Engineering Technology Research Institute Co.,Ltd. of CECEP, Beijing

[2] State Key Laboratory of Petroleum Pollution Control, Beijing

[3] CNPC Research Institute of Safety and Environmental Technology, Beijing

来源：

Huagong Xuebao/CIESC Journal | 2022年 / 73卷 / 04期

关键词：

Desorption; Environment; Fixed-bed; Oil-based drilling cuttings; Recovery; Waste treatment;

D O I：

10.11949/0438-1157.20211702

中图分类号：

学科分类号：

摘要：

Calcium oxide(CaO) was used as additive to regulate the thermal desorption process of oil-based drilling cuttings to reduce the low quality and severe smell of oil and gas. The results showed that: (1) The higher CaO addition ratio, the higher yield of oil and the lower yield of water and gas. The yield of residue increased at first and then decreased. (2) Higher desorption temperature resulted in lower yield of residue and higher yield of oil, water, and gas. (3) The addition of CaO significantly increased oil yield and decreased the yield of oil and gas by different degrees under every temperature. (4) The yield and saturation of hydrocarbons of oil increased, the sulfur content in oil decreased after adding CaO. Therefore adding CaO improved the additional economic value of recycled oil and reduced the water and gas yield, especially the yield of CO2 and H2S. The introduction of CaO as an additive reduces the atmospheric pollution of the thermal desorption process to the operating environment, as well as the desulfurization burden of the subsequent process, reduces the high energy consumption caused by water evaporation, and creates favorable conditions for the reuse of oil products and non-condensable gas. © 2022, Editorial Board of CIESC Journal. All right reserved.

引用

页码：1724 / 1731

页数：7

共 31 条

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