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Method of synthesizing poly alpha-olefin oil

A technology for olefins and raw materials, applied in the field of synthesizing polyalpha-olefin oil, can solve the problems of environmental pollution, difficult to handle, low oil viscosity index, etc., and achieve the effect of environmental friendliness

Inactive Publication Date: 2011-05-25
FUSHUN GASOLINEEUM CHEM SINOPEC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of polyα-olefin oil by the catalyst has problems such as easy corrosion of equipment, serious environmental pollution, a large amount of aluminum slag (up to 5%), and difficulty in handling. Complicated, this point is highlighted in the low viscosity index of the oil, the thermal oxidation stability is not good enough, etc., and there is a certain quality gap between its performance and foreign polyalphaolefin oil (PAO)

Method used

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  • Method of synthesizing poly alpha-olefin oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] According to the following process conditions, with C 8～13 Olefin as raw material, BF 3 · Propanol accelerator is used as a catalyst to carry out the experiment of synthesizing polyalphaolefin oil (PAO).

[0020] Polymerization temperature 50℃

[0021] Reaction pressure 0.0Mpa

[0022] Response time 1h

[0023] Propanol dosage 0.8%

[0024] BF 3 Dosage 1%

[0025] Refining temperature 60°C

[0026] Refining time 0.5h

[0027] Clay dosage 3% relative to polymerized oil

[0028] The material balance of oil products is shown in the table below.

[0029] Material Balance

[0030] project

[0031] Catalyst consumption, %

[0032] See the table below for oil properties.

[0033] >280℃ Distillate Properties

[0034] project

[0035] The material balance and properties of the oil after hydrogenation of the oil according to the following process conditions are as follows.

[0036] Hydrogenation process conditions

[0037] cata...

Embodiment 2

[0046] According to the following process conditions, with C 8～13 Olefin as raw material, BF 3 ·The butanol accelerator is used as a catalyst to carry out the experiment of synthesizing polyalphaolefin oil (PAO).

[0047] Polymerization temperature 30℃

[0048] Reaction pressure 0.4Mpa

[0049] Response time 3h

[0050] BF 3 5% usage

[0051] Butanol dosage 0.1%

[0052] Refining temperature 60°C

[0053] Refining time 0.5h

[0054] The amount of white clay 3% (relative to polymer oil)

[0055] The material balance of oil products is shown in the table below.

[0056] Material Balance

[0057] project

Material Balance

Raw olefins, %

100

Refined coincident oil, %

Among them: >280°C distillate

<280℃ fraction

94

86

8

[0058] Residue, %

3

Loss (including white clay slag), %

3

Catalyst consumption, %

1

[0059] See the table below for oil properties.

[0060] >280℃ Distillate pr...

Embodiment 3

[0072] According to the following process conditions, with C 8～13 Olefin as raw material, BF 3 ·The pentanol accelerator was used as a catalyst to carry out the experiment of synthesizing polyalphaolefin oil (PAO).

[0073] Polymerization temperature 25℃

[0074] Reaction pressure 0.3Mpa

[0075] Response time 4h

[0076] Amyl alcohol dosage 0.1%

[0077] BF 3 Dosage 4%

[0078] Refining temperature 60°C

[0079] Refining time 0.5h

[0080] The amount of white clay 3% (relative to polymer oil)

[0081] The material balance of oil products is shown in the table below.

[0082] Material Balance

[0083] project

Material Balance

[0084] Raw olefins, %

100

Refined coincident oil, %

Among them: >280°C distillate

<280℃ fraction

95

86

9

Residue, %

3

Loss (including white clay slag), %

3

Catalyst consumption, %

1

[0085] See the table below for oil properties.

[0086] >280℃ Distill...

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Abstract

The invention relates to a method for synthesizing poly-Alpha-olefin oil taking BF3 promoters as catalysts and olefins as raw materials, which is characterized by that weight rate of alcohol dosage used for initiating agent to olefin hydrocarbon is 0.01 to 1.0%; the weight rate of BF3 dosage to the raw materials of olefin hydrocarbon is1 to 5%; a reaction temperature is 0 to 80 DEG C; a reaction pressure is 0 to 1.0MPa; a reaction time is 1 to 6h, a technological line of two kettle parallel connection and evaporation-adsorption series connection is adopted, a polymerized oil is added an absorption kettle, 2-5% of white clay is added, the mixture is fully stirred under the temperature of 60 DEG C, and after 30 min, the materials are fed to a product tank through a filter. The present method optimizes a catalyst system, technological conditions and process flow of BF3 catalyzed synthesizing poly-Alpha-olefin oil, wherein the oil product has the advantages of low viscosity, low-freezing, high viscosity index, good oxidation stability, light color and high yield, and the BF3 catalyst is capable of recycling use and accords with environmental requirements.

Description

technical field [0001] The present invention relates to a kind of boron trifluoride (BF 3 ) Accelerator is a catalyst, and olefin is a method for synthesizing polyalpha-olefin oil (PAO) as a raw material. Background technique [0002] Compared with mineral oil, polyalphaolefin oil (PAO) has excellent physical and chemical properties, so it is widely used. And in recent years, with the increasingly stringent requirements for energy saving and environmental protection, the rapid development of polyalphaolefin oil (PAO) has also been promoted, with a rapid growth rate of 10-15% per year. [0003] The preparation of poly-α-olefin oil (PAO) is carried out in two steps. The first step is to oligomerize olefins under the action of a catalyst to obtain oligomerized unsaturated hydrocarbons; Bond hydrogenation, thereby improving the thermo-oxidative stability of polyalphaolefin oil (PAO). [0004] At present, the domestic production of polyα-olefin oil is based on wax cracking α-o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C2/04
CPCY02P20/584
Inventor 曾世虎李绍凡张志峰丁洪生刘伟谢云发陈新德权成光李成俭高桂芝许兰香
Owner FUSHUN GASOLINEEUM CHEM SINOPEC
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