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A process for simultaneously producing two environment-friendly rubber filling oils

An environmentally friendly rubber and oil filling technology, which is applied in the petroleum industry, processing hydrocarbon oil, etc., to meet the needs, small investment in equipment, and simple operation.

Inactive Publication Date: 2012-08-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no process that can simultaneously produce two environmentally friendly extender oils with high aromatic carbon ratios of different densities

Method used

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  • A process for simultaneously producing two environment-friendly rubber filling oils

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Use Zhonghai Asphalt (Taizhou) Co., Ltd. as the raw material, N-methylpyrrolidone as the solvent, and the solvent-to-oil ratio (volume ratio, referring to the volume ratio of the solvent N-methylpyrrolidone to the raw material minus the third-line distillate) 1.0 to 2.0 and mix evenly. Place in a settling tank for constant temperature settling, the settling temperature is 40-60°C, and the residence time is 30 minutes to 2 hours to obtain the upper layer liquid and the lower layer liquid. Aromatic oil, the upper liquid is distilled under reduced pressure at 1 Torr to 100 Torr to recover the solvent N-methylpyrrolidone to obtain primary raffinate oil.

[0026] Then use primary raffinate oil as raw material, N-methylpyrrolidone as solvent, mix evenly with agent-oil ratio (volume ratio) 1.0-2.0, place in settling tank for constant temperature settling, settling temperature 50-70°C, residence time 30 minutes After 2 hours, the upper layer liquid and the lower layer liquid ar...

Embodiment 2

[0029] Use the minus three lines of Zhonghai Asphalt (Taizhou) Co., Ltd. as raw material, N-methylpyrrolidone as solvent, mix evenly with agent-oil ratio (volume ratio) 1.0-2.0, place in a settling tank for constant temperature settling, settling temperature 40-60°C, The residence time is 30 minutes to 2 hours to obtain the upper layer liquid and the lower layer liquid. The upper layer liquid is distilled under reduced pressure at 1 Torr to 100 Torr to recover the solvent to obtain a raffinate oil, and the lower layer liquid is 1 Torr to 100 Torr to recover the solvent after vacuum distillation to obtain a raffinate oil. The oil is highly aromatic oil.

[0030] Then use primary raffinate oil as raw material, dimethyl sulfoxide as solvent, mix evenly with agent-oil ratio (volume ratio) 1.0-4.0, place in a settling tank for constant temperature settling, settling temperature 70-90°C, residence time 30 minutes After 2 hours, the upper layer liquid and the lower layer liquid are o...

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Abstract

In a process for simultaneously producing two environment-friendly rubber filling oils, vacuum gas oils of naphthene base crude serve as materials; in the first step, high aromatic oils and first residual oil are acquired through solvent extraction; in the second step, polycyclic aromatic hydrocarbons in the residual oil in the first step are selectively removed through solvent refinement, thus low density environment-friendly filling oil is prepared; in the third step, polycyclic aromatic hydrocarbons are selectively removed from the high aromatic oils through solvent refinement, thus a high density environment-friendly filling oil is acquired. In the invention, two environment-friendly rubber filling oils of different densities are simultaneously produced. In the each of the prepared two environment-friendly rubber filling oils, benzopyrene is less than 1ppm, total amount of 8 kinds of polycyclic aromatic hydrocarbons is less than 10 ppm, which entirely satisfies environment requirements of EU; CA value of low density environment-friendly oil is more than 17%, while CA value of high density environment-friendly oil is more than 25%.

Description

technical field [0001] The invention relates to a production process of filler oil in the rubber industry, in particular to a process for simultaneously producing two kinds of environmentally friendly rubber filler oils with different densities. Background technique [0002] Extender oil is an important raw material in the rubber industry, among which high aromatic oil (DAE) is generally refined from solvent extraction of vacuum distillate oil. Environmentally friendly extender oils are roughly divided into three categories, one is treated aromatic oil (TDAE), the other is shallow extraction oil (MES), and the third is naphthenic oil (NAP). TDAE is produced by refining the original aromatic oil to remove toxic polycyclic aromatic hydrocarbons; MES is produced from paraffin-based crude oil distillate oil after light solvent refining and then dewaxing refined; naphthenic oil is produced from naphthenic crude oil distillate oil through It is refined by solvent refining or hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/00C08K5/01C08L21/00
Inventor 徐骏杨苏平黄贤平杜发国孙研张斌张洁
Owner CHINA PETROLEUM & CHEM CORP
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