Oil-sludge-sand separation cleaning agent and oil-sludge-sand separation method using same

• Main Authors: CHEN SIMING, ZHOU E, LI YAN, DUAN DONGPING
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2022
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; DISPOSAL OF SOLID WASTE; FATTY ACIDS THEREFROM; METALLURGY; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; TRANSPORTING; USE OF SINGLE SUBSTANCES AS DETERGENTS

The invention provides an oil-sludge-sand separation cleaning agent and an oil-sludge-sand separation method using the same. The oil-sludge-sand separation cleaning agent comprises nonylphenol polyoxyethylene ether, dodecyl sulfate and inorganic salt. The oily sludge and sand separation method is easy to operate, efficient separation of oil in oily sludge and sand is achieved through first water washing, oily sludge and sand separation cleaning agent hot washing and second water washing, whether the oil content of second oily sludge and sand reaches the standard or not is detected, the cleaning step is repeated, and qualified oily sludge and sand with the low oil content is obtained. The oil sludge and sand separation method realizes harmless treatment of oil field solid waste, and has a large-scale popularization and application prospect. 本发明提供一种油泥砂分离清洗剂及利用其的油泥砂分离方法，所述油泥砂分离清洗剂包括壬基酚聚氧乙烯醚、十二烷基硫酸盐和无机盐。所述油泥砂分离方法操作简单，通过第一水洗、油泥砂分离清洗剂热洗和第二水洗，实现油泥砂中油的高效分离，并通过检测第二油泥砂的含油率是否达标，重复上述清洗步骤，得到了含油率低的合格泥砂。本发明所述油泥砂分离方法实现了油田固废无