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Crude oil desalting complex agent and preparation method thereof

A composite agent and desalting technology, which is applied in chemical dehydration/demulsification, petroleum industry, refined hydrocarbon oil, etc., can solve the problems of low demulsification and desalination efficiency, poor applicability of crude oil, etc., and achieve good demulsification and desalination effect

Active Publication Date: 2016-04-13
LUOYANG PETROCHEMICAL ENG CORP SINOPEC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the disadvantages of poor crude oil applicability, low demulsification and desalination efficiency in the prior art, the invention provides a crude oil desalting compound agent and its preparation method

Method used

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  • Crude oil desalting complex agent and preparation method thereof
  • Crude oil desalting complex agent and preparation method thereof
  • Crude oil desalting complex agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The preparation of maleic anhydride modified phenolamine polyether compound sees embodiment 1;

Embodiment 2

[0045] The effect evaluation of maleic anhydride modified phenolamine polyether compound is shown in Example 2;

[0046] See Example 3 for the preparation of the crude oil desalting compound agent;

[0047] See Example 4 and Example 5 for the evaluation of the effect of the crude oil desalting compound agent.

[0048] Example 1

[0049] The preparation process of maleic anhydride modified phenolamine polyether compound is divided into following three steps:

[0050] First, the preparation of initiator alkylphenolamine resin:

[0051] Put nonylphenol and tetraethylenepentamine into a reactor with a stirrer, a thermometer and a reflux device in a molar ratio of 1:2, raise the temperature under constant stirring, keep it warm for 20 minutes when the temperature rises to 50°C, and then slowly Add formaldehyde dropwise, the molar ratio of nonylphenol: formaldehyde = 1:2, the dropping rate is 1-2 drops / s, keep warm for 30min after the dropping, raise the temperature to 85°C, and ...

Embodiment 3

[0071]According to the results of Examples 1 and 2, HP2 and HP3 were selected as maleic anhydride-modified phenolamine polyether compounds to carry out compound screening research on crude oil desalting composite agents. Preparation of compound agent for crude oil desalination: add maleic anhydride modified phenolic amine polyether compound, phase transfer agent, organic amine, asphalt colloidal dispersant and additives together for mixing, and stir at 60°C for 30 minutes until a uniform mixture is formed It can be used as the compound agent for crude oil desalting of the present invention. The specific composition is shown in Table 4.

[0072] Table 4 Preparation of Crude Oil Desalting Compound Agent

[0073]

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Abstract

The invention discloses a crude oil desalting complex agent and a preparation method thereof. The crude oil desalting complex agent is prepared from the following components: (A) 30-80 percent of a maleic anhydride modified phenol-amine polyether compound, (B) 5-20 percent of a phase-transfer agent, (C) 10-30 percent of organic amine, (D) 2-15 percent of an asphalt colloidal dispersant, and (E) 2-20 percent of an auxiliary. The crude oil desalting complex agent has excellent demulsification desalting and dehydrating performance, and is especially suitable for desalting and dehydrating inferior crude oil with high colloid content and high asphaltene content.

Description

field of invention [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a compound agent for crude oil desalination and a preparation method thereof. Background technique [0002] Against the background of violent price fluctuations in the international crude oil market, crude oil processing has huge uncertainties. Reducing the cost of crude oil processing can resist external risks and improve the ability of enterprises to avoid large fluctuations in crude oil prices. Therefore, it is very important to strengthen the control of crude oil processing costs. The cost of crude oil processing is mainly restricted by three factors: the type of crude oil, the technical level of the refining unit, and the product structure. Optimizing the structure of crude oil, making full use of the capacity of the unit itself, and appropriately improving the processing capacity of inferior crude oil will undoubtedly become the key to control...

Claims

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Application Information

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IPC IPC(8): C10G29/20C10G33/04
Inventor 唐应彪崔新安袁海欣李朝法刘家国申明周许兰飞
Owner LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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