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Coal-based environment-friendly solvent oil and preparation method thereof

An environmentally friendly solvent, coal-based technology, used in the petroleum industry, hydrocarbon oil treatment, hydrotreating processes, etc., can solve problems such as benzene content limitation and hematopoietic system diseases, and achieve good lubricity, low freezing point, and good performance. Effect

Active Publication Date: 2012-12-05
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Benzene is a toxic solvent that can cause damage to the hematopoietic system and cannot be used in coatings. China and most countries in the world have strict restrictions on the content of benzene in solvents

Method used

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  • Coal-based environment-friendly solvent oil and preparation method thereof
  • Coal-based environment-friendly solvent oil and preparation method thereof
  • Coal-based environment-friendly solvent oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] A typical shale oil is selected as the raw material, and the properties of the shale oil raw material after dehydration and removal of mechanical impurities are shown in Table 1. The shale oil raw material is distilled to separate light oil and heavy oil, light oil The distillation cut point of heavy oil and heavy oil is 350°C. The heavy oil is operated continuously on a 0.1t / d continuous suspension bed hydrocracking test device. The adopted process conditions are: reaction temperature 420°C, reaction pressure 15MPa, volume space velocity 0.5h －1 , the volume ratio of hydrogen to oil is 1500, the catalyst is a composite multi-metal active component containing molybdenum and iron, and the particle diameter is less than 50 μm in powder form. The amount of catalyst added is to control the total amount of metal in the active component and the weight of the heavy oil raw material The ratio is 0.8:100. The suspended bed light oil fraction produced by continuous operation and...

example 2

[0041] A typical coal tar was selected as the raw material for the test. The properties of the coal tar raw material after dehydration and removal of mechanical impurities are shown in Table 3. The coal tar raw material was distilled to separate light oil and heavy oil. The heavy oil was separated at 0.1 The t / d continuous suspension bed hydrocracking test device operates continuously and adopts the following process conditions: reaction temperature 430°C, reaction pressure 16 MPa, volumetric space velocity 0.5 h －1 , the volume ratio of hydrogen to oil is 1500, the catalyst is a composite multi-metal active component containing molybdenum and iron, and the particle diameter is less than 50 μm. The ratio is 0.8:100. The suspended bed light oil fraction produced by continuous operation and the light oil separated from the coal tar raw material by distillation are mixed as the raw material for fixed bed hydrofining, and then hydrofining is carried out on a 3L / hr continuous hydro...

example 3

[0048] The test selects a typical dephenolized oil fraction as raw material, and the properties of the dephenolized oil raw material after dehydration and removal of acid-base residue pretreatment are shown in Table 5. The dephenolized oil raw material is used as a fixed bed hydrorefining raw material, and then the The hydrogenation refining is carried out on the continuous hydrogenation device of hr, and the hydrofinishing process conditions are: two fixed bed reactors connected in series, the reaction pressure is 12.0MPa, the reaction temperature is 350°C, and the space velocity is 1.0 h -1 , The volume ratio of hydrogen to oil is 800:1, and the catalyst is Ni-Mo series hydrogenation protecting agent and Ni-Mo-Wo series hydrofining catalyst. Hydrorefined coal tar hydrorefined oil is obtained.

[0049] The dephenolized oil obtained above is hydrotreated and refined, and then rectified, fractionated and cut to obtain 150-200°C fractions or 160-200°C fractions, etc., to obtain ...

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Abstract

The invention relates to coal-based environment-friendly solvent oil and a preparation method thereof. The method at least comprises the following steps of: performing the hydrorefining of a fixed bed at the reaction temperature of between 250 and 420 DEG C under reaction pressure of 5.0 to 20.0 MPa under the condition that space velocity is 0.3 to 3.0 h<-1> and the volume ratio of hydrogen to oil is (500:1)-1,500:1, wherein a catalyst is Ni-W, Ni-Mo or Ni-W-Mo series of hydrorefining catalysts; and performing rectifying separation, namely cutting cut fractions by rectification and fractional distillation within the range of boiling points of between 140 and 220 DEG C to obtain the solvent oil. The environment-friendly solvent oil has the characteristics of low viscosity, low aromatic hydrocarbon content, low sulphur and nitrogen content, no toxicity, no color, narrow distillation range, high chemical stability and dissolution selectivity, high volatility, environment-friendliness and the like, and is mainly used as solvents and diluents in paint industry and spinning, printing and dyeing and textile printing industries.

Description

technical field [0001] The invention relates to a solvent oil, in particular to a coal-based environment-friendly solvent oil mainly used as a solvent and thinner in the paint industry, textile, printing and dyeing, and printing industries and a preparation method thereof. Background technique [0002] Solvent oil products are one of the five major categories of petroleum products, which are closely related to people's basic necessities of life, and their application fields are also expanding. Among them, the most widely used paint solvent oil (commonly known as paint solvent oil) is used in edible oil, printing ink, leather, Pesticides, insecticides, rubber, cosmetics, spices, chemical polymerization, medicine, and cleaning of IC electronic components are also widely used. [0003] At present, there are three main raw materials for the production of solvent oil in my country: catalytic reforming raffinate, oil field stable light hydrocarbons and straight-run gasoline. Both...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00C10G67/02
Inventor 张晓静朱肖曼李培霖赵鹏吴艳毛学锋张帆颜丙峰王勇胡发亭石智杰杜淑凤谷小会黄澎钟金龙李伟林
Owner CCTEG CHINA COAL RES INST
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