Device for enhancing color stability of solvent oil

A stable, solvent oil technology, applied in the petroleum industry, processing hydrocarbon oil, and multi-stage series refining process treatment, etc., can solve the problems of high equipment investment and production costs, harsh process conditions, and moderate process conditions, and achieves Satisfied color stability, simple process, small footprint

Inactive Publication Date: 2015-01-21
TIANJIN GANGMA WATERPROOF MATERIAL ENG
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Problems solved by technology

[0003] At present, the method for removing basic nitrogen compounds in solvent oils is the clay refining method. This method has mild process conditions, simple equipment and low construction investment, but it can only remove oil products with a basic nitrogen content of about 3ppm. Otherwise, the amount of clay used Large and limited effect, low quality product
There is also a hydrofining method, which reacts the raw material oil with hydrogen in the presence of a catalyst to convert nitrogen compounds into NH 3 And remove, but this method process condition is harsh, and equipment investment and production cost are high

Method used

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  • Device for enhancing color stability of solvent oil

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Embodiment 1

[0014] like figure 1 As shown, the device that improves the color stability of solvent oil, comprises settling tank 1, filter 2, dehydrator 3, fixed bed reactor 4 filled with adsorbent, solvent oil finished product storage tank 5, described settling tank 1, filter Device 2, dehydrator 3, fixed bed reactor 4 filled with adsorbent, and storage tank of solvent oil product 5 are connected in sequence through pipelines.

[0015] The adsorbent uses activated carbon as a carrier, and the active ingredient is an adsorbent for inorganic salts of iron, cobalt, tin and titanium.

[0016] In the present invention, the crude oil passes through the sedimentation tank 1 and the filter 2 to remove solid impurities, then passes through the dehydration effect of the dehydrator 3, and then passes through the fixed bed reactor 4, and the basic nitride is removed through the adsorption effect of the adsorbent. Therefore, the obtained solvent oil finished product has few impurities, high quality a...

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Abstract

The invention relates to a device for enhancing the color stability of solvent oil. The device comprises a settling tank, a filter, a dehydrator, a fixed bed reactor filled with an adsorbent and a solvent soil finished product storage tank, wherein the settling tank, the filter, the dehydrator, the fixed bed reactor filled with the adsorbent and the solvent oil finished product storage tank are connected in sequence through a pipeline. The device is simple in process flow, low in cost and small in floor area. Moreover, basic nitrogen compounds in the solvent oil can be removed below 1ppm, and the color stability meets the requirement of a user on storage time.

Description

technical field [0001] The invention relates to a chemical equipment, in particular to a device for improving the color stability of solvent oil. Background technique [0002] The substances that easily discolor solvent oil are mainly basic nitrides, which have poor stability and are easily oxidized to form yellow colloids under the action of heat or light when in contact with air, which deepens the color of the oil. [0003] At present, the method for removing basic nitrogen from solvent oil is clay refining method. This method has mild process conditions, simple equipment and low construction investment, but can only remove oil with basic nitrogen content of about 3 ppm, otherwise the amount of white clay will be removed. Large and limited effect, the product is not of high quality. There is also a hydrorefining method in which the feedstock is reacted with hydrogen in the presence of a catalyst to convert the nitrides to NH 3 However, this method has harsh process condi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/08
CPCC10G53/08C10G2300/202
Inventor 马风桥
Owner TIANJIN GANGMA WATERPROOF MATERIAL ENG
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