Low-temperature demulsifier for crude oil emulsion and production method thereof

A production method and technology of demulsifiers, applied in the field of low-temperature demulsifiers, can solve problems such as poor applicability, poor solubility, poor dispersion performance, and excess, and achieve the effects of enhanced application performance and effect, clear oil-water interface, and good cost performance

A production method and technology of demulsifiers, applied in the field of low-temperature demulsifiers, can solve problems such as poor applicability, poor solubility, poor dispersion performance, and excess, and achieve the effects of enhanced application performance and effect, clear oil-water interface, and good cost performance

CN102086408AInactive Publication Date: 2011-06-08江苏三星化工有限公司
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  • Low-temperature demulsifier for crude oil emulsion and production method thereof
  • Low-temperature demulsifier for crude oil emulsion and production method thereof
  • Low-temperature demulsifier for crude oil emulsion and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0022] Crude oil emulsion low temperature demulsifier composition: polyether type demulsifier (brand: BP2040), 10%; phenolic resin type polyether demulsifier (brand: AR36), 20%; phenolic resin type polyether demulsifier (brand: BASOROL P DB-9945), 20%; dodecylbenzenesulfonic acid, 0.5%; mixed aromatic solvent (brand: S-1000), 48.5%; isopropanol, 1%.

[0023] Heat the demulsifier dry agent to 80°C in a water bath to make it have better fluidity. Add 485 kg of mixed aromatic solvent S-1000 and 10 kg of isopropanol into a reaction kettle with a heat preservation jacket, and add 100 kg of heated functional demulsifier BP2040 in batches at a stirring speed of 120 r / min. Kilogram, 200 kilograms of AR36, 200 kilograms of BASOROL P DB-9945, finally add 5 kilograms of additive dodecylbenzenesulfonic acid, and continue to stir to obtain the final product after 15 minutes.

[0024] The performance index of obtained crude oil emulsion low temperature demulsifier is as follows:

[0025] ...

Embodiment B

[0027] Crude oil emulsion low temperature demulsifier composition: polyether type demulsifier (brand: AP121), 15%; Phenolic resin type polyether demulsifier (brand: BASOROL P DB-9947), 20%; Polyamine polyether demulsifier ( Brand: BASOROL 701), 20%; dodecylbenzenesulfonic acid, 0.55%; mixed aromatic solvent (brand: S-1500), 42.45%; isopropanol, 2%.

[0028] Heat the demulsifier dry agent to 80°C in a water bath to make it have better fluidity. Add 424.5 kg of mixed aromatic solvent S-1500 and 20 kg of isopropanol into a reaction kettle with a heat preservation jacket, and add 150 kg of heated functional demulsifier AP121 in batches at a stirring speed of 120 r / min. Kilogram, 200 kilograms of BASOROL P DB-9947, 200 kilograms of BASOROL701, finally add 5.5 kilograms of additive dodecylbenzenesulfonic acid, and continue to stir to obtain the final product after 15 minutes.

[0029] The performance index of obtained crude oil emulsion low temperature demulsifier is as follows:

...

Embodiment C

[0032] Crude oil emulsion low temperature demulsifier composition: phenolic resin type polyether demulsifier (brand: BASOROL P DB-9935), 15%; PO / EO block polyether demulsifier (brand: BASOROL 150R1), 15%; multifunctional type Polyether demulsifier (brand: BASOROLE9289), 20%; dodecylbenzenesulfonic acid, 0.5%; mixed aromatic solvent (brand: S-1500), 48%; isopropanol, 1.5%.

[0033] Heat the demulsifier dry agent to 80°C in a water bath to make it have better fluidity. Add 480 kg of mixed aromatic solvent S-1500 and 15 kg of isopropanol into a reaction kettle with a heat preservation jacket, and add the heated functional demulsifier BASOROL P DB in batches at a stirring speed of 120 r / min -9935 counts 150 kg, BASOROL 150R1 counts 150 kg, BASOROLP E9289 counts 200 kg, finally adds 5 kg of additive dodecylbenzenesulfonic acid, and continues stirring for 15 minutes to obtain the final product.

[0034] The performance index of obtained crude oil emulsion low temperature demulsifie...

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Abstract

The invention discloses a low-temperature demulsifier for a crude oil emulsion and a production method thereof. The low-temperature demulsifier comprises the following components: 35-65% of functional demulsifier, 1-10% of low-temperature complexing agent, 0.5-5% of additive and 35-65% of organic solvent. The production method of the low-temperature demulsifier comprises the step of compositely preparing with a reaction kettle with a clamp sleeve. The low-temperature demulsifier has wide suitable crude oil types and has better application performance compared with the traditional low-temperature demulsifier.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a low-temperature demulsifier used in the low-temperature demulsification process of crude oil emulsion, which is suitable for use in the low-temperature dehydration of oil field production fluid and the low-temperature pretreatment process of crude oil emulsion in refineries . Background technique [0002] Oilfield production fluid is a kind of crude oil emulsion. Generally, after thermal chemical sedimentation dehydration and electric dehydration treatment, the water content of crude oil is less than 0.5%, which meets the requirements for export. According to the characteristics of different crude oil emulsions, low-temperature demulsifiers are selected to reduce the operating temperature of thermochemical sedimentation and electric dehydration processes, which can save a lot of heat energy consumption. Similarly, crude oil will be mixed with a certa...

Claims

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Application Information

Patent Timeline
08 Jun 2011
Publication
CN102086408A
IPC
C10G33/04
Inventors
刘建春; 王龙祥