Preparation method of macromolecule modified emulsion breaker with broad spectrum activity

A polymer and broad-spectrum technology, applied in the field of polymers, can solve the problems of differences in physical and chemical properties and performance, and achieve the effects of reducing dosage, low oil carrying rate and increasing benefits

Inactive Publication Date: 2010-06-23
上海九元石油化工有限公司
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Problems solved by technology

However, judging from the current application status of demulsifiers, there are still very few broad-spectrum demulsifiers, and for the same demulsifier produ

Method used

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Embodiment Construction

[0011] The present invention will be further described below.

[0012] 1. Preparation method of polyol ethylene oxide propylene oxide high polymer

[0013] 1. Raw material ratio:

[0014] Octadecanol: propylene oxide=1~10: 2~60 (ratio by weight)

[0015] Propylene oxide: ethylene oxide=2~8: 8~2 (ratio by weight and number)

[0016] The amount of DMC complex catalyst accounted for raw materials: 0.5 ~ 2% (wt%)

[0017] Reaction temperature: 120-180°C.

[0018] The general formula of the described DMC complex catalyst is: M3[A(CN)6]2.w MX2.xH2O.yL.zHX, wherein, M is metal ion Zn 2+ , M′ is Co 3+ , A is ZnCl 2 , B is ethylene glycol dimethyl ether, wherein x, y are the numbers representing A and B respectively.

[0019] 2. Preparation process:

[0020] Add the measured stearyl alcohol and DMC complex catalyst into the autoclave, seal the autoclave, purge with nitrogen to get rid of the air in the autoclave, after vacuuming, raise the temperature of the autoclave to the re...

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Abstract

The invention relates to the field of macromolecule technology, in particular to a preparation method of a macromolecule modified emulsion breaker with broad spectrum activity; the method adopts the following steps: (1) a DMC bimetal cyanide sewing up catalysis system is adopted to prepare a polyalcohol ethylene oxide propylene oxide high polymer; (2) acrylic acid modified polyether is prepared; (3) formulation harmonization is carried out: the prepared 15-30wt percent of the polyalcohol ethylene oxide propylene oxide high polymer, 35-25wt percent of the acrylic acid modified polyether and 50wt percent of additives carry out formulation harmonization; compared with the prior art, the two original emulsion breakers are modified respectively by the DMC bimetal complex catalysis system and the acrylic acid, and then the formulation is carried out, and the emulsion breaker finished product can greatly reduce the using amount of the emulsion breaker and reduce the additive amount of the product; in addition, the oil rate of the dehydrated shearing water is low and the dehydrated shearing water can be directly exhausted without water treatment, thereby alleviating environmental protection pressure and increasing the refinery benefit.

Description

[technical field] [0001] The invention relates to the technical field of polymers, in particular to a preparation method of a broad-spectrum polymer modified demulsifier. [Background technique] [0002] Due to the extensive application of enhanced oil recovery technology in domestic oilfields, the components of crude oil transported to refineries have become increasingly complex, and crude oil demulsifiers have become essential chemical reagents for refineries. With the increasing demand for demulsifiers, the performance requirements are also more stringent. However, judging from the current application status of demulsifiers, there are still very few broad-spectrum demulsifiers, and for the same demulsifier product, products produced at different times and in different batches still have some differences in physical and chemical properties and performance. difference. This requires our scientific researchers to develop new products that not only have the stability of the ...

Claims

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Application Information

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IPC IPC(8): B01F17/44B01F17/42C10G33/04C09K23/44C09K23/42
Inventor 盛小飞慕锴
Owner 上海九元石油化工有限公司
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