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Polyelement composite heavy oil emulsion splitter and preparation method thereof

A technology of demulsifier and heavy oil, which is applied in the direction of dehydration/demulsification by chemical methods, water treatment and refining, etc. It can solve the problem that it is difficult for demulsifiers to purify impurities and high-efficiency demulsification, demulsifiers cannot meet the use requirements, and the difference of harmful impurities is very large Large and other problems, achieve good demulsification effect, clear oil-water interface, and low cost

Inactive Publication Date: 2010-09-15
广州市金汇杰环保科技实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The components and harmful impurities of heavy oil from different origins and sources are very different, and it is difficult for general demulsifiers to achieve the effect of purifying impurities and efficiently breaking demulsification
[0004] Gas turbine power plants have strict requirements on the content of harmful impurities in the heavy oil used by the gas turbine. The total K+Na content in the heavy oil at the inlet of the gas turbine is less than 1ppm, and the Ca content is less than 10ppm. 0.4%, the existing demulsifiers cannot meet its use requirements

Method used

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  • Polyelement composite heavy oil emulsion splitter and preparation method thereof
  • Polyelement composite heavy oil emulsion splitter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add the initiator polyethylene polyamine and catalyst KOH into the pressure reactor, add propylene oxide (PO) dropwise, control the temperature at 120-140°C, and continue the reaction for 30 minutes after the pressure drops to less than 0.4MPa; open the pressure reactor, Add ethylene oxide (EO) dropwise, continue the reaction for 30 minutes after the pressure drops to less than 0.4MPa, lower the temperature, open the pressure reactor, adjust the pH value of the reactant to neutral with glacial acetic acid, and obtain polyethylene polyamine polyoxyethylene Polyoxypropylene ether.

[0026] Specific raw material ratios are shown in Table 1. The amount of KOH used is 0.3% of the total raw material mass to obtain polyethylene polyamine polyoxyethylene polyoxypropylene ether D1 and polyethylene polyamine polyoxyethylene polyoxypropylene ether D2 respectively.

[0027] The preparation raw material of table 1 polyethylene polyamine polyoxyethylene polyoxypropylene ether

[002...

Embodiment 2

[0030] Add initiator and catalyst KOH into the pressure reactor, add propylene oxide dropwise, control the temperature at 120-140°C, and continue the reaction for 30 minutes after the pressure drops to less than 0.4MPa; open the pressure reactor, add ethylene oxide dropwise, After the pressure drops to less than 0.4 MPa, continue to react for 30 minutes, lower the temperature, open the pressure reactor, and adjust the pH value of the reactant to neutral with glacial acetic acid to obtain fatty alcohol polyoxyethylene polyoxypropylene ether.

[0031] Specific raw material ratios are shown in Table 2. The dosage of the initiator is 0.3% of the total raw material mass to obtain polyethylene polyamine polyoxyethylene polyoxypropylene ether Z1 and polyethylene polyamine polyoxyethylene polyoxypropylene ether Z2 respectively.

[0032] The preparation raw material of table 2 fatty alcohol polyoxyethylene polyoxypropylene ether

[0033] Fatty alcohol polyoxyethylene polyoxypr...

Embodiment 3

[0035] Mix deionized water, acrylic acid, chain transfer agent isopropanol and initiator ammonium persulfate evenly, and place them in a water bath at 60-65° C. to react for 3-4 hours to obtain polyacrylic acid.

[0036] Specific raw material ratios are shown in Table 3, and polyacrylic acid B1 and polyacrylic acid B2 were obtained respectively.

[0037] The preparation raw material of table 3 polyacrylic acid

[0038] Polyacrylic acid

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Abstract

The invention discloses a polyelement composite heavy oil emulsion splitter and a preparation method thereof. The heavy oil emulsion splitter comprises the following components in percentage by weight: 30-55 percent of polyether, 5-15 percent of surface active agent and 40-60 percent of solvent, wherein the polyether is formed by mixing polyethylene polyamine polyoxyethylene polyoxypropylene ether and fatty alcohol polyoxyethylene polyoxypropylene ether, the surface active agent is polyacrylic acid, and the solvent comprises ethanol and deionized water. The heavy oil emulsion splitter is mainly used for the water scrubbing purification of heavy oil of a gas-turbine power plant and has emulsion splitter dosage of 100-300ppm and good emulsion splitting effect; the K and Na total content of purified heavy oil is less than 1ppm, an oil-water interface is clear, and the water content of the purified heavy oil is less than 0.4 percent and has good broad spectrum activity and lower cost. The polyelement composite heavy oil emulsion splitter can also be used for processing inferior crude oil or crude oil mixed with heavy oil with a larger proportion before catalysis and cracking.

Description

technical field [0001] The invention relates to a multi-component compounded heavy oil demulsifier and a preparation method thereof, in particular to a high-efficiency demulsifier for demetallization (potassium, sodium, calcium) of heavy oil in gas turbine power plants. Background technique [0002] Heavy oil is also called residual oil, which is the residual oil after distillate oil is extracted from crude oil through atmospheric or vacuum distillation equipment, or the cracked residual oil extracted from the bottom of the high-temperature pressurized cracking evaporation tower, or a mixture of the two, or adding an appropriate amount A heavy petroleum fuel made from cracked residual oil. It has high viscosity, high content of harmful impurities and complex composition. Heavy oil contains harmful impurities such as S, Na, K, V, Ca, etc. When heavy oil is used as fuel at high temperature, the SO produced by S 2 , SO 3 Corrosive substances such as NaCl and KCl can react to...

Claims

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Application Information

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IPC IPC(8): C10G33/04C10G31/08
Inventor 梁力彤张宏伟
Owner 广州市金汇杰环保科技实业有限公司
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