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A kind of method for producing the wax medium for thermostat with f-t synthetic product

A technology for synthesizing products and thermostats, which is applied in the direction of petroleum wax recovery, etc., can solve the problems of environmental pollution, below 50 ℃, and wide temperature control range.

Active Publication Date: 2017-10-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation methods introduced by these patents pollute the environment
[0020] The wax medium preparation method in the prior art also uses (multi-stage) sweating or (distillation method) combined sweating, such as: CN02109670.8 (waxy temperature medium for shower automatic thermostat valve) and other patents. The melting point of the target product All are below 50°C; CN201110353409.8 (a preparation method of wax temperature medium for temperature control valve) and other patents have a melting point below 50°C, and the temperature control range is wide, so it is not suitable for use as a wax for thermostats medium

Method used

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  • A kind of method for producing the wax medium for thermostat with f-t synthetic product
  • A kind of method for producing the wax medium for thermostat with f-t synthetic product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] This embodiment includes: (1) hydroconversion, (2) distillation, and (3) sweating.

[0066] (1) Hydroconversion

[0067] Using the wax oil product (n-paraffin weight content of 95.0%) of the low-temperature F-T synthesis experimental device of China Petrochemical Corporation as raw material, the FHJ-2 catalyst (a Ni / Al 2 o 3 Commercial catalyst, developed and produced by Fushun Petrochemical Research Institute, the content of active metal nickel in terms of oxides is 40%, the catalyst is subjected to conventional reduction treatment before use) under the action of reaction pressure 5.0MPa, reaction temperature 200℃, volume space velocity 1.0h -1 Hydrogenation is carried out under the condition of 500:1 volume ratio of hydrogen to liquid to convert olefins and oxygenates in it. The weight content of normal paraffins in the hydrogenation product is 97.36%.

[0068] (2) Distillation

[0069] The product obtained by the above hydrogenation conversion is prepared in a va...

Embodiment 2

[0100] This embodiment includes: (1) hydroconversion, (2) distillation, and (3) sweating.

[0101] (1) Hydroconversion

[0102] With embodiment 1.

[0103] (2) Distillation

[0104] With embodiment 1.

[0105] (3) sweating

[0106]This part includes: (1) Preparation, (2) Loading, (3) Cooling—high temperature constant temperature—cooling—low temperature constant temperature crystallization, (4) Heating—constant temperature sweating, (5) sweating device cleaning, (6) product refining And molding, packaging and other processes.

[0107] (1) Preparation

[0108] Connect the jacket of the sweating dish and the movable coil to the circulation system with program cooling / heating function, fix the coil on the sweating dish; use water as the medium; start the heating function of the circulation system to heat the circulating water medium to 75 ℃.

[0109] The lower part of the sweating dish plate is cushioned with water.

[0110] Install the sealing system on the upper part of ...

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Abstract

The invention discloses a method of producing wax medium used for a thermostat with F-T synthesis products. With the F-T synthesis products, of which the weight content of normal alkanes is more than 85%, as a raw material, olefins and oxygen-containing compounds in the products are subjected to hydrogenation conversion to form proper components. The hydrogenation product is distilled to prepare component in proper distillation range, and the component is sweated to produce the target product. In the method, a low-boiling-point liquid is added to the raw material, and a high-constant-temperature step is added at proper temperature during cooling temperature decrease, and meanwhile, liquid components are carried away with air flow during the temperature-increasing sweating process, so that the method increases separation effect and accelerates separation. The solvent-free separation method in a manner of sweating can be used for producing the wax medium, which is higher than 70 DEG C, used for thermostat. The method is low in apparatus investment, is simple in production process, is low in operation cost and is free of solvent pollution.

Description

technical field [0001] The invention belongs to the technical field of special wax production, in particular to a method for producing a wax medium for a thermostat with an F-T synthetic product. Background technique [0002] The wax temperature control valve uses wax as the medium for sensing temperature changes. When the ambient temperature changes, the volume of the wax will change, and then control the valve opening, thereby adjusting the flow rate and achieving the purpose of adjusting and controlling the temperature. The wax substance used in wax temperature control valve is called wax medium. [0003] The thermostat, also known as the thermostat, is used to automatically adjust the amount of water entering the radiator according to the temperature of the cooling water, change the water circulation range, and adjust the heat dissipation capacity of the cooling system to ensure that the engine works within a suitable temperature range. [0004] The commonly used thermo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/36
CPCC10G73/36
Inventor 孙剑锋张造根孙国权赵威袁平飞
Owner CHINA PETROLEUM & CHEM CORP