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Multifunctional crude oil tank farm treating agent

A multi-functional, treating agent technology, applied in the direction of chemical dehydration/demulsification, etc., can solve the problems of large usage and narrow application range, and achieve the effects of low usage, increase effective tank capacity, and save labor costs.

Active Publication Date: 2013-09-04
沈红新 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another example is patent No.: CN1600835A multifunctional crude oil demulsifier preparation method and its products, its scope of application is relatively narrow, only applicable to the demulsification and demetallization of crude oil electric desalting device, the usage amount is large, and the usage amount is about 100ppm, and For example, the patent No. is CN1493657A, a method for viscous crude oil pretreatment, which is only suitable for viscous crude oil pretreatment, and metals such as calcium

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] This example is a field application test

[0013] Proportion of treatment agent used: nonylphenolic resin polyether 60%, SP-169 10%, polyacrylic acid 3%, diethylene glycol butyl ether 20%, naphtha 7%. The process steps to produce 1 ton are: first add 200 kg of diethylene glycol butyl ether to the reactor, start stirring, heat to 35-40 degrees Celsius, add 70 kg of naphtha, 600 kg of nonylphenolic resin polyether, SP- 169 100 kg, stirring for 30 minutes, then adding 30 kg of polyacrylic acid, stirring for 30 minutes, standing still, cooling to 20 degrees Celsius, the finished product can be obtained.

[0014] The application site is a crude oil tank area of ​​an oil refinery, and the average daily processing capacity of the device is 3,000 tons / d. The salt content of the crude oil entering the tank is 98.53ppm, and 15ppm of this compounding agent is added before entering the tank, the salt content of the crude oil leaving the tank is 25.15ppm, the desalination rate is c...

Embodiment 2

[0016] This example is a field application test

[0017] Proportion of treatment agent used: tert-butylphenolic resin polyether 55%, SP-169 15%, polyacrylic acid 2%, diethylene glycol butyl ether 18%, terpene 10%. The process steps to produce 1 ton include: first add 180 kg of diethylene glycol butyl ether to the reactor, start stirring, heat to 35-40 degrees Celsius, add 100 kg of terpene, 550 kg of tertiary butylphenolic resin polyether, SP- 169 150 kg, stir for 30 minutes, then add 20 kg of polyacrylic acid, stir for 25 minutes, let it stand, and cool to 20 degrees Celsius to get the finished product.

[0018] The application site is a crude oil tank area of ​​an oil refinery, and the average daily processing capacity of the device is 15,000 tons / d. The salt content of the crude oil entering the tank is 74.6ppm, and 12ppm of this compounding agent is added before entering the tank, the salt content of the crude oil leaving the tank is 21.2ppm, the desalination rate is cont...

Embodiment 3

[0020] This example is a field application test

[0021] Proportion of treatment agent used: 30% nonylphenol aldehyde resin polyether, 35% tert-butyl phenolic resin polyether, 10% SP-169, 5% polyacrylic acid, 5% diethylene glycol butyl ether, naphtha 15%. The process steps for producing 1 ton include: adding 50 kilograms of diethylene glycol butyl ether to the reactor first, stirring, heating to 35-40 degrees Celsius, adding 150 kilograms of naphtha, 300 kilograms of nonylphenol-amine-formaldehyde resin polyether, 350 kg of tert-butylphenolic resin polyether, 100 kg of SP-169, stirred for 25 minutes, then added 30 kg of polyacrylic acid, stirred for 40 minutes, allowed to stand, and cooled to 20 degrees Celsius to obtain the finished product.

[0022] The application site is a crude oil tank area of ​​an oil refinery, and the average daily processing capacity of the device is 30,000 tons / d. The salt content of the crude oil entering the tank is 121.31ppm, and 10ppm of this c...

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Abstract

The invention relates to a multifunctional crude oil tank farm treating agent which is prepared by the following raw materials in percentage by weight: 55%-65% of a modified polyether demulsifying agent, 10%-15% of a synergist, 3%-5% of a dispersant and 20%-30% of a solvent, wherein the modified polyether demulsifying agent is one or a plurality of nonyl phenolic resin polyether, nonyl phenol aldehyde resin polyether, tertiary butyl phenolic resin polyether and tertiary butyl phenol amine aldehyde resin polyether polymerized by nonyl phenol, m-dinonylphenol or p-tert-butylphenol as an initiator, or a condensation product of the nonyl phenol, the m-dinonylphenol, the p-tert-butylphenol, vinylamines and methanal as the initiator with propylene epoxide and ethylene oxide; the synergist is a non-ionic surface active agent; the dispersant is polyacrylic acid or polyacrylamide; and the solvent is one or a plurality of diethylene glycol monobutyl ether, terpene or naphtha. The multifunctional crude oil tank farm treating agent is suitable for pretreating of various types of temporary stored or long-term stored crude oil entering the tank farm. A product has oil solubility, and the usage amount is low.

Description

technical field [0001] The invention relates to the field of petrochemical technology, in particular to a multifunctional treatment agent for crude oil tank farms. Background technique [0002] As the demand for crude oil continues to rise, the newly discovered crude oil reserves cannot keep up with the rapid growth of crude oil consumption, and the trend of poor quality of crude oil is becoming more and more obvious. Today, many refineries have to refine low-quality crude in order to profit from "opportunity crude." The "disadvantages" of these crude oils include high acid number, high metal content, high salt, high impurities, high water content, and high pour point. Excessive water content in crude oil will cause unstable operation of the distillation tower, and even cause tower flushing accidents in severe cases. Excessive water content will increase heat energy consumption, increase the load of the cooler and the consumption of cooling water. Salt deposits on the pipe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
Inventor 沈红新岳宗威
Owner 沈红新
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