Organosilicone-break-emulsification agent and application thereof

A technology of organic silicon and flocculant, which is applied in the direction of flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, liquid separation, etc. It can solve problems such as difficult oil removal effect, polluted oil products, and secondary pollution. , to achieve the effects of weakening the strength of the oil-water interface film, high oil removal rate and fast settlement speed
CN106477700AActive Publication Date: 2017-03-08SHANGHAI NAT ENG RES CENT FORNANOTECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI NAT ENG RES CENT FORNANOTECH
Publication Date
2017-03-08

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Abstract

The invention discloses an organosilicone-break-emulsification agent and an application thereof. The water treatment agent of the organosilicone-break-emulsification agent is prepared from cationic demulsifie (NM), flocculant (PDMNAAC)and organosilicone surfactant (Y1714) with a mass concentration ratio of 10: 3: 1. The specific use method aiming at W refining decompression tower top oily sewage is adding the organosilicone-break-emulsification agent of 30-80 mg / L to achieve an oil removal rate of 85% or higher. The effects of demulsification by the demulsifie NM, adsorption bridging and electrical neutralization by the flocculant PDMDAAC, oil-water interface tension decreasing and oil-water interface film tensity reducing by the organosilicone surfactant Y1714 and the like are synthetically developed through the compounding of cationic demulsifie (NM), flocculant (PDMNAAC)and organosilicone surfactant (Y1714). Accordingly, the effect result of oil-water separation is achieved. The organosilicone-break-emulsification agent and the application thereof has the advantages of requiring little water treatment agent dosage, producing little sediment and being high in oil removal rate in the aspect of refining decompression tower top sewage treatment and has certain referential value to refining decompression tower top sewage treatment.
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Description

technical field

[0001] The invention relates to an organosilicon-demulsification flocculant and its application, in particular to an organosilicon-demulsification flocculant used for treating oily sewage at the top of a decompression tower in refinery and its application. Background technique

[0002] With the increasing amount of emulsified sewage discharged from atmospheric and vacuum distillation units in the process of petroleum processing, this kind of oily sewage oil-water emulsion is difficult to separate, and usually has a large oil content and complex composition (contains more alkanes, halogenated hydrocarbons, Aromatic hydrocarbon ethers and mercaptans, etc.) and high processing difficulty. As a result, the treatment efficiency of the biochemical treatment device is low. If the oil content in the discharged water exceeds the standard, it will not only cause environmental pollution, but also cause a large amount of oil loss.

[0003] Domestic refinery wastewater a...

Claims

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