High-efficiency low-temperature oil sludge de-emulsifier and preparation method thereof

A demulsifier and low-temperature oil technology, applied in the field of high-efficiency low-temperature oily sludge demulsifier and its preparation, can solve the problems of unsatisfactory treatment of oily sludge, complicated process, lack of oil recovery rate, etc., and achieve good demulsification characteristics and preparation method. Simple, high demulsification effect

Active Publication Date: 2015-03-18
CHINA PETROLEUM & CHEM CORP +1
7 Cites 11 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The process is relatively complicated, and the oil recovery rate needs to be improved
CN102492460A discloses a preparation method and application of a crude oil low-temperature demulsifier. The method prepares a demulsifier through polyethylene po...
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Abstract

The invention discloses a high-efficiency low-temperature oil sludge de-emulsifier, the de-emulsifier comprises the following components by weight part: 4-21 parts of rosin-polythylene oxide ester, 3-18 parts of disodium cocoyl monoethanolamide sulfosuccina, 0.1-1 part of acid catalyst and 60-92 parts of water. A preparation method of the de-emulsifier comprises the following steps: uniformly mixing rosin-polythylene oxide ester, disodium cocoyl monoethanolamide sulfosuccina, an acid catalyst and water, and then obtaining the low-temperature oil sludge de-emulsifier. The oil sludge de-emulsifier has the advantages of good demulsification effect under low temperature, wide usage temperature scope and high oil recovery rate, and the method has the advantages of low production cost, environmental protection, simple process and wide application scope. The oil sludge de-emulsifier can be used for harmlessness treatment of oil sludge at bottom of pot, scummings and activated sludge, and also can be used for treating various kinds of oil-containing sludge generated by petroleum exploitation, storage and transportation enterprises.

Application Domain

Sludge treatment by de-watering/drying/thickeningSpecific water treatment objectives +2

Technology Topic

ChemistryRosin +5

Examples

  • Experimental program(5)
  • Comparison scheme(2)

Example Embodiment

[0025] Example 1
[0026] Mix 20g of polyoxyethylene rosin acid (n=4), disodium cocoic acid monoethanolamide sulfosuccinate (R=C 13 ) 4g, 0.1g hydrochloric acid, 75.9g water, mixed at 30°C for 30 minutes to obtain a sludge demulsifier.

Example Embodiment

[0027] Example 2
[0028] Mix 7g of polyoxyethylene rosin acid (n=5), disodium cocoic acid monoethanolamide sulfosuccinate (R=C 12 ) 16g, 0.2g formic acid, 76.8g water, mixed at 35°C for 35 minutes to obtain a sludge demulsifier.

Example Embodiment

[0029] Example 3
[0030] Combine 13g of polyoxyethylene rosin acid (n=3), disodium cocoic acid monoethanolamide sulfosuccinate (R=C 14 ) 12g, 0.12g of oxalic acid, 74.88g of water, mixed at 25°C for 32 minutes to obtain a sludge demulsifier.

PUM

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Description & Claims & Application Information

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