掺混劣质原油对电脱盐污水水质特征的影响  

Effect of Adulterating Heavy Oil on Water Quality Characteristics of Electric Desalination Wastewater

作　　者：梁家豪 蔡维中 李长刚 谢文玉 郭晓培 陈晓青 LIANG Jiahao;CAI Weizhong;LI Changgang;XIE Wenyu;GUO Xiaopei;CHEN Xiaoqing(Guangdong Engineering Technology Research Center of Petrochemicl Pollution Control,School of Environmental Science and Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,China;College of Energy and Power Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,China;ZhongKe(Guangdong)Refinery&Petrochemical Company Limited,Zhanjiang 524000,China;State Key Laboratory of Heavy Oil Processing,College of Chemical Engineering and Environment,China University of Petroleum-Beijing,Beijing 102249,China)

机构地区：[1]广东石油化工学院环境科学与工程学院,广东省石油化工污染控制工程技术研究中心,广东茂名525000 [2]广东石油化工学院能源与动力工程学院,广东茂名525000 [3]中科(广东)炼化有限公司,广东湛江524000 [4]中国石油大学(北京)化学工程与环境学院重质油国家重点实验室,北京102249

出　　处：《广东石油化工学院学报》2024年第3期33-38,共6页Journal of Guangdong University of Petrochemical Technology

基　　金：茂名市科技计划项目(2022S041,2023015);广东石油化工学院人才引进项目(RC-XJ2022000302,RC-XJ2022000702)。

摘　　要：劣质原油掺炼是提升炼油企业成本效益的有效策略,但对其电脱盐污水水质的影响仍鲜有报道。实验以沙特原油为大宗原油,纳波重质原油为劣质掺混原油,研究掺混比分别为0、25%、50%和100%时电脱盐污水的水质特征。结果表明不同掺混比条件下电脱盐污水的主要极性有机物均为脂类(24.5%~44.4%)、脂肪族类(17.2%~37.5%)和木质素/富羧基脂环分子结构化合物(24.2%~56.8%),主要非/弱极性有机物为酚类(12.4%~33.2%)和含氮化合物(11.2%~21.8%)。电脱盐污水COD、总油、电导率、总氮和NH4+-N的浓度与纳波重质原油掺混比呈正相关。纳波重质原油掺混促进含氮非/弱极性化合物和O3S1类极性化合物的溶解,含量高于纳波重质原油和沙特原油电脱盐污水。Heavy oil adulteration is an effective strategy to enhance the cost-effectiveness of refineries,but its effect on the water quality of electric desalination wastewater is still rarely reported.This study investigated the water quality characteristics of the electric desalination wastewater at blending ratios of 0%,25%,50%and 100%,using Saudi crude oil as the bulk crude oil and Napo heavy crude oil as the blended inferior crude oil.The results showed that the main polar organic compounds in the electric desalination wastewater at different blending ratios were lipids(24.5%~44.4%),aliphatics(17.2%~37.5%)and lignin/carboxylic acid-rich alicyclic molecular structure compounds(24.2%~56.8%),and the main non-/weak-polar organic compounds were phenols(12.4%~33.2%)and nitrogen-containing compounds(11.2%~21.8%).The concentrations of COD,total oil,conductivity,total nitrogen,and NH4+-N in the electric desalination wastewater were positively correlated with the blending ratio of Napo heavy oil.Napo heavy crude oil blending promoted the dissolution of nitrogen-containing non-/weak-polar compounds and O3S1-type polar compounds.The content in the electric desalination wastewater was higher than that of Napo heavy oil and Saudi crude oil.

关 键 词：电脱盐污水 污染负荷 溶解性有机物 劣质原油 水质特征 

分 类 号：X703.1[环境科学与工程—环境工程]