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Mineral oil composition

A composition and solvent oil technology, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrocarbon oil treatment products, etc. products, the inability to obtain isoparaffin solvent oil, etc., to achieve the effects of excellent wetting and surface diffusivity, high isoparaffin content and high flash point

Active Publication Date: 2019-06-14
INNER MONGOLIA YITAI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN107400535A discloses a method for producing isoparaffin solvent oil and isoparaffin solvent oil from Fischer-Tropsch synthetic naphtha. Using Fischer-Tropsch synthetic naphtha as raw material, the Fischer-Tropsch synthetic naphtha is sequentially subjected to alcohol halogenation Reaction, polymerization reaction and hydrogenation reaction, to solve the problem of how to process Fischer-Tropsch synthetic naphtha to obtain isoparaffin solvent oil with high isoparaffin content, because the selected raw materials contain more olefins, organic oxygen-containing compounds and alcohols Fischer-Tropsch synthetic naphtha, the finally obtained isoparaffin solvent oil will inevitably contain more of the above-mentioned impurities, and the naphtha has less carbon number, so it is impossible to obtain a product with a high flash point and a low freezing point, which affects the quality of the solvent oil. quality
[0005] Chinese patent CN103387848A discloses the production of solvent oil, lubricating oil base oil and heavy wax from Fischer-Tropsch synthetic wax. isoparaffin spirit
[0009] In the prior art, the raw material used is Fischer-Tropsch naphtha or heavy wax, and the process of hydroisomerization and multi-step rectification is used to prepare isoparaffin solvent oil, and the obtained product still contains olefins, organic oxygen compounds, alcohols, etc. , naphthenes and other impurities, or the inability to obtain isoparaffins with high purity, high flash point and low freezing point, which affects the quality of solvent oil

Method used

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  • Mineral oil composition

Examples

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Effect test

Embodiment 1

[0044] The Fischer-Tropsch crude liquid wax from the coal-based Fischer-Tropsch synthetic liquefied oil process of the 1.2 million tons / year coal-to-chemicals project of Inner Mongolia Yitai Chemical Co., Ltd. is used as the raw material for this project, and the raw material does not contain naphthenes.

[0045] After the material enters the feed buffer tank, it enters the light removal tower after being boosted by the machine pump and heat exchanged by the hot material. Tray-type rectification, the pressure at the top of the tower is 0.01-0.05MPa, the pressure at the bottom of the tower is 0.02-0.06MPa, the temperature at the top of the tower is 155-165°C, and the temperature at the bottom is 210-230°C.

[0046] After exchanging heat between the top component of the de-weighting tower and the cold material, it enters the reflux tank and is boosted by a mechanical pump. Part of it is used as reflux to return to the rectification tower, and part of it is used as the raw materia...

Embodiment 2

[0055] The process is the same as in Example 1, and the specific raw material composition and process conditions are defined. The raw materials are specifically the first Fischer-Tropsch crude liquid wax and the first Fischer-Tropsch synthesis process of the 1.2 million tons / year coal-to-chemicals project Fischer-Tropsch synthesis process of Inner Mongolia Yitai Chemical Co., Ltd. For the second Fischer-Tropsch crude liquid wax, the third Fischer-Tropsch crude liquid wax and the fourth Fischer-Tropsch crude liquid wax, the raw materials are first mixed, and the raw materials do not contain naphthenes.

[0056] The first Fischer-Tropsch crude liquid wax stream accounts for 22.92%wt in the feedstock, and the first Fischer-Tropsch crude liquid wax includes 9.066962%wt of C5-C9 normal paraffins, 0.201892%wt of C5-C9 isoparaffins, 47.46498%wt C10-C13 normal paraffins, 2.015039%wt C10-C13 isoparaffins, 26.1817%wt C14-C16 normal paraffins, 1.764391wt C14-C16 isoparaffins, 12.06655%wt ...

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Abstract

The invention provides a solvent oil composition. The solvent oil composition comprises an isoparaffin mixture, the weight of the isoparaffin mixture is greater than 95%, the solvent oil composition does not contain cycloalkanes and presents a transparent liquid status with no color and no order under normal temperature and normal pressure, the flash point of the solvent oil composition is greaterthan 95 DEG C, the distillation range of the solvent oil composition is within 225-250 DEG C, the kauri butanol (KB) number of the solvent oil composition is 27-29, the aniline point of the solvent oil composition is 88-94 DEG C, the aromatic hydrocarbon content of the solvent oil composition is lower than 50 ppm, the density of the solvent oil composition is 0.65-0.74 g / cm<3>, the viscosity of the solvent oil composition is 1.30-1.55 mm<2> / S, and the condensation point of the solvent oil composition is 55-65 DEG C. The solvent oil composition is high in content of isoparaffins, free from thearomatic hydrocarbons, sulfur, nitrogen and extraneous odor, narrow in distillation range, nontoxic, colorless, high in chemical stability, low in condensation point and electrical conductivity and excellent in wettability and surface diffusivity, thereby being a high-quality chemical raw material.

Description

technical field [0001] The invention relates to a solvent oil composition, in particular to an isoparaffin solvent oil composition. Background technique [0002] In recent years, the development of hydrocarbon solvents is very rapid, and its application fields are also expanding. It is used in edible oil, printing ink, leather, pesticides, insecticides, rubber, cosmetics, spices, chemical polymerization, medicine and cleaning of IC electronic components. and so on have a wide range of uses. Solvent oil products can be divided into aromatic hydrocarbons, dearomatized aliphatics, isoparaffins, naphthenes and normal paraffins. Taking the products of Exxon / Mobil as an example, its grades are divided into aromatics (Solvesso series), dearomatized aliphatics (Exxsol series), isoparaffins (Isopar series), naphthenes (Nappar series), normal There are 7 categories including alkanes (Norpar series), other hydrocarbons (Pegasol series) and oxygen-containing derivatives series. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/08
CPCC10G53/08C10G2400/18
Inventor 褚振辉赵军额尔敦
Owner INNER MONGOLIA YITAI CHEM CO LTD