A Promising Device Based on Step Stage Theory for Highly Effective Treatment of Oil Field Wastewater

IF 0.6 4区工程技术 Q4 ENERGY & FUELS Chemistry and Technology of Fuels and Oils Pub Date : 2024-07-19 DOI:10.1007/s10553-024-01719-5

Haoyuan Xue, Chen Ma, Jintao Liu, Haoran Yu, Xin Yang, Xuanhao Zhang, Shengye Zhang

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Abstract

This study proposed a solar thermal electrochemical photo (STEP) theory-based integrated device for highly efficient oilfield-produced wastewater (OPW) purification, combining photothermal and electric technologies. The major oil fields in China reaching the mid-to-late stage of high-water content extraction have substantially increased the amount of OPW, the complex composition of which makes degradation challenging. This research aimed to improve OPW treatment efficiency and reduce energy consumption and mining costs via innovative processes and integrated experimental devices. A solar five-field demulsification model was developed by combining filtration, distillation, condensation, and other processes using the solar STEP theory and incorporating the photocatalytic oxidation, thermal effect, electro-oxidation, air flotation, and flocculation derived from solar energy. The model enables the utilization of photocatalysts to harness solar power.and get the full spectrum energy hierarchical conversion utilization. The results showed that petroleum hydrocarbon removal was positively correlated with the environmental temperature and voltage. The device significantly improved the petroleum hydrocarbon removal rate at an optimized temperature and voltage. At 100°C and 3 V, the petroleum hydrocarbon removal rate reached 93%, confirming the efficiency and feasibility of the device in improving OPW treatment efficacy and environmental protection.

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基于阶梯理论的高效处理油田废水的可行装置

本研究提出了一种基于光热电化学光（STEP）理论的高效油田采出废水（OPW）净化集成装置，将光热技术与电技术相结合。中国各大油田进入高含水开采的中后期，油田采出废水（OPW）量大幅增加，其复杂的成分给降解带来了挑战。本研究旨在通过创新工艺和集成实验装置，提高 OPW 处理效率，降低能耗和开采成本。利用太阳能 STEP 理论，结合太阳能衍生的光催化氧化、热效应、电氧化、气浮和絮凝等作用，将过滤、蒸馏、冷凝等过程结合起来，建立了太阳能五场破乳模型。该模型可以利用光催化剂来利用太阳能，并获得全方位的能量分层转换利用。结果表明，石油烃的去除与环境温度和电压呈正相关。在优化的温度和电压条件下，该装置明显提高了石油烃的去除率。在 100°C 和 3 V 条件下，石油烃去除率达到 93%，证实了该装置在提高 OPW 处理效果和环境保护方面的效率和可行性。

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来源期刊

Chemistry and Technology of Fuels and Oils 工程技术-工程：化工

CiteScore

0.90

自引率

16.70%

发文量

119

审稿时长

1.0 months

期刊介绍： Chemistry and Technology of Fuels and Oils publishes reports on improvements in the processing of petroleum and natural gas and cracking and refining techniques for the production of high-quality fuels, oils, greases, specialty fluids, additives and synthetics. The journal includes timely articles on the demulsification, desalting, and desulfurizing of crude oil; new flow plans for refineries; platforming, isomerization, catalytic reforming, and alkylation processes for obtaining aromatic hydrocarbons and high-octane gasoline; methods of producing ethylene, acetylene, benzene, acids, alcohols, esters, and other compounds from petroleum, as well as hydrogen from natural gas and liquid products.