Production method of environmentally-friendly rubber filling oil

A technology for rubber filler oil and production method, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrotreating process, etc., can solve the problems of complicated process, increased equipment investment, and decreased product yield, etc., and achieves high solvent recovery rate and reduced The number of extractions and the effect of improving product yield

Inactive Publication Date: 2012-06-27
JIANGSHAN UNITED CHEM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The application document with the patent publication number CN101597512A proposes a refining method. The third-line raw material oil and furfural are contacted countercurrently in the extraction tower, and the extracted liquid at the bottom of the tower recovers the solvent to obtain the extracted oil. The refined oil obtained by the secondary extraction is environmentally friendly rubber oil; the patent application with the publication number CN101597513A proposes another refining method, that is, the third-line raw material oil and furfural are countercurrently contacted in the extraction tower, and the refined liquid is obtained from the top of the tower after the solvent is recovered. The refined oil is obtained, and then the refined oil is e

Method used

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  • Production method of environmentally-friendly rubber filling oil
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  • Production method of environmentally-friendly rubber filling oil

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Experimental program
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Effect test

Embodiment 1

[0031] The raw material used in the experiment is oil slurry from the catalytic unit of a refinery in Dongying. The main properties are shown in Table 1. The experiment was carried out on a pilot plant. After the oil slurry was preheated to 150°C, it entered the cyclone. After hydrocyclone separation, the overflow of the cyclone was introduced into the slurry bed hydrogenation reactor for hydrogenation reaction. The catalyst was Oil-soluble Mo-Ni hydrogenation catalyst, catalyst addition is 200 μ g / g, after 12 hours of circulation reaction, the product after hydrogenation is cooled to room temperature and enters the first extraction column, according to product: furfural: 140 # Solvent oil = 1:1:0.3 ratio for dual-solvent extraction, wherein the temperature at the top of the tower is 90°C, and the temperature at the bottom of the tower is 60°C; the primary refined liquid flowing out of the top of the tower enters the second extraction tower from the bottom for secondary extract...

Embodiment 2

[0037] With the stock oil in embodiment 1, experiment according to the method and the condition in embodiment 1, difference is that N-methylpyrrolidone (NMP) is the main solvent of the first extraction tower, oil: NMP: 140 #Solvent oil=1:2:0.3, the temperature at the top of the tower is 100°C, and the temperature at the bottom of the tower is 60°C. Other conditions and operations remain unchanged, and the properties of the obtained secondary refined oil are shown in Table 3.

Embodiment 3

[0039] With the stock oil in embodiment 1, experiment according to the method and condition of embodiment 1, difference is that heptane is the second solvent of the first extraction tower, oil: furfural: heptane=1: 1: 0.2, The temperature at the top of the tower is 90°C, and the temperature at the bottom of the tower is 65°C. Other conditions and operations remain unchanged, and the properties of the obtained secondary refined oil are shown in Table 3.

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Abstract

The invention discloses a technology for producing environmentally-friendly rubber filling oil by using RFCC (residue fluid catalytic cracking) slurry. The technology comprises the following specific steps: performing liquid-solid separation on catalyst particles in the slurry by utilizing a rotary liquid separation method, and carrying out hydrogenation reaction on the overflows of a cyclone by virtue of a slurry-bed hydrogenation reactor; after the reaction, introducing the hydrogenation product in a first extraction tower so as to be subjected to two-solvent extraction, wherein the slurry enters the middle of the extraction tower, a solvent I enters from the lower part of the extraction tower, a solvent II enters from the upper part of the extraction tower, the three materials perform counter-current contact in the tower, a primary refining solution is obtained from the top of the tower; directly feeding the primary refining solution into the lower part of a second extraction tower so as to perform counter-current contact with a solvent III coming from the upper part, thus a secondary refining solution is obtained from the top of the tower; and carrying out steam stripping on the secondary refining solution to recycle the solvent, thus obtaining secondary refined oil, namely the environmentally-friendly rubber filling oil. The rubber filling oil produced in the technology meets the environmental standards of the European Union, and has the advantages of good solubility to rubber, high yield and very good market application prospect.

Description

Technical field: [0001] The invention belongs to the field of petroleum and petroleum fraction refining, and relates to a process for producing environment-friendly rubber filling oil by using catalytic cracking oil slurry. Background technique: [0002] In order to cope with the adverse effects of increasingly heavy raw materials on the operation of catalytic cracking units, refineries mostly adopt the method of throwing oil slurry outside. These external oil slurries are generally burned as fuel oil, and the economic benefits are low. In today's increasingly tight oil resources, it has caused a great waste of resources. Therefore, it is necessary to comprehensively utilize the catalytic cracking oil slurry. [0003] Domestic refineries use catalytic cracking oil slurry to produce aromatic rubber extension oil. Rubber extension oil is one of the important raw materials for rubber processing, which is divided into aromatic type, naphthene type and paraffin type. Among them,...

Claims

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Application Information

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IPC IPC(8): C10G67/14C08K5/01C08L21/00
Inventor 刘东魏永生赵丽萍宫鑫王云霞
Owner JIANGSHAN UNITED CHEM GRP CO LTD
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