Hydrogenation method for producing low aromatic hydrocarbon solvent oil from biological oil
A bio-oil and low-aromatics technology, which is applied in the preparation of biological raw materials, liquid hydrocarbon mixtures, and the petroleum industry, can solve the problems of limited production raw materials, restrictions on the production of high-grade low-aromatic solvent oils, and high production costs
Active Publication Date: 2013-05-15
CHINA PETROLEUM & CHEM CORP +1
View PDF12 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the raw materials for the production of high-grade low-aromatic solvent oil are limited (generally limited to gasoline fractions or kerosene fractions of paraffin-based crude oil, or reformed raffinate, etc.), due to the requirement of low aromatics content (some solvent oil indicators require aromatics content to be less than 0.1 %), so complex processing routes are required, the conditions are harsh, and the production cost is high, which limits the production of high-grade low-aromatic solvent oil
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026]The method of the present invention is specifically as follows: using one or several mixed oils in the biogrease as the raw material oil, under the hydrotreating operating conditions, the raw material oil and hydrogen pass through the first stage reaction zone containing at least two hydrogenation catalysts , the obtained hydrogenation product stream is separated in the high-pressure separator (abbreviated as high fraction) to recycle the gas obtained, or it can also go out of the system, and the obtained liquid fractionation is mixed with hydrogen and enters the second-stage reactor containing a hydrocracking catalyst with cracking performance. In the reaction area of the section, the gas obtained from the separation of the hydrocracked stream in the high-pressure separator (referred to as high fraction) is recycled, and it can also be discharged from the system, and the liquid is separated to obtain low-aromatic solvent oil products. When the conversion rate is low, th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention relates to a hydrogenation method for producing a low aromatic hydrocarbon solvent oil from a biological oil. The method is characterized in that a biological oil is adopted as a raw material oil; under a hydrogenation condition, the raw material oil and hydrogen are mixed, and pass through a first stage hydrogenation reaction zone; hydrogen-rich gas separated from a stream generated through hydrogenation is recycled; the separated liquid enters a second stage hydrocracking reaction zone; and sub-hydrogen gas separated from the oil generated through second stage hydrogenation is recycled, and the separated liquid product is separated to obtain various low aromatic hydrocarbon solvent oil products. Compared with the method in the prior art, the method of the present invention has the following advantages that: low aromatic hydrocarbon solvent oil production methods are increased, activity stability of the catalyst can be ensured, and stable and long period device operation can be ensured.
Description
technical field [0001] The invention belongs to a processing method of renewable energy, and relates to a hydrogenation method, in particular to a hydrogenation method for directly producing solvent oil by using biological oil as raw material oil. Background technique [0002] The world economy continues to develop. At present, the main sources of chemical products worldwide are fossil energy, the most important of which are petroleum and coal. These two kinds of fossil energy are both non-renewable energy. Not only are the resources increasingly depleted, but also the quality and inferiority are intensified, and the difficulty and cost of processing are gradually increasing. In addition to improving the existing oil refining technology, looking for new oil substitutes, To produce qualified products at the lowest cost, especially the development and utilization of renewable resources has been paid more and more attention. [0003] As a renewable resource, bio-grease is main...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 刘涛张学辉李宝忠刘继华孙洪江
Owner CHINA PETROLEUM & CHEM CORP