A method of hydrocracking
A hydrocracking and hydrofining technology, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment, can solve the problems of high nitrogen content in tail oil of hydrofined oil, poor quality of hydrofined oil-diesel oil, no Fix problems such as poor catalyst activity, achieve the effects of excellent product quality, prolonging the operation cycle of the device, and flexible product solutions
Active Publication Date: 2017-06-30
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The quality of the hydrotreated oil-diesel obtained by this method is relatively poor, and it needs to be hydrotreated to improve the quality of the diesel product. The obtained hydrotreated oil tail oil has a high nitrogen content, and the catalyst used in the hydrocracking reactor is an amorphous Mainly, due to poor activity of amorphous catalysts, product flexibility is limited
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 1
[0071] This embodiment adopts as figure 1 The method shown in the process flow chart is carried out, the feed oil of this embodiment contains coal tar fraction C and feed oil A, and the weight ratio of A and C is 7:3, the main process conditions are as shown in Table 2, the product The distributions and their main properties are listed in Table 3.
Embodiment 2
[0073] This embodiment adopts as figure 1 The method shown in the process flow chart of the present embodiment contains coal tar fraction C, coal tar fraction D and raw oil B in the raw oil, and the weight ratio of B:C:D is 6:2:2, the main The process conditions are shown in Table 2, and the product distribution and its main properties are listed in Table 3.
Embodiment 3
[0075] This embodiment adopts as figure 1 The method shown in the process flow chart is carried out, the feed oil of this embodiment contains coal tar fraction C and feed oil B, and the weight ratio of B and C is 5.5:4.5, the main process conditions are as shown in Table 2, the product The distributions and their main properties are listed in Table 3.
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 invention discloses a hydrocracking method, which comprises: in the presence of hydrogen, carrying out hydrogenation protection and hydrogenation pretreatment on heavy raw materials in sequence, and separating the obtained product under high temperature and high pressure; Separation of oil for temperature and low pressure separation; separation of temperature and low oil for gas-liquid separation to obtain oil phase materials, wherein the heavy raw materials contain coal tar fractions; then, the oil phase materials are subjected to hydrorefining and hydrocracking in sequence , subjecting the resulting product to thermal high-pressure separation; mixing hot high-separation gas, warm high-separation gas and water for cold high-pressure separation; and subjecting hot high-separation liquid to thermal low-pressure separation; Carry out cold low-pressure separation; then fractionate the cold low fraction liquid and the hot low fraction liquid. The method of the present invention is a hydrocracking method for blending coal tar that can simultaneously produce multiple high-quality light product oils flexibly and at low cost from heavy raw material oil doped with coal tar under mild conditions of reaction pressure and reaction temperature .
Description
technical field [0001] The present invention relates to a method for hydrocracking. Background technique [0002] With the continuous development of social economy, people's demand for petroleum products is increasing day by day, and the quality requirements of oil products are also becoming more and more stringent. However, under the background that crude oil resources are becoming heavy and inferior, and my country's dependence on foreign crude oil is increasing, developing new technologies to effectively use inferior raw materials and broaden the scope of raw materials for refineries is an effective way to solve the shortage of oil resources. way. At present, my country is rich in coal resources, and coal-based industrial by-products produce a large amount of coal tar, but the processing method of coal tar is single, the processing cost is high and it is accompanied by a large amount of pollution. Therefore, it is of great economic value and social significance to make f...
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 Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
Inventor 赵广乐胡志海赵阳陈元君蒋东红张毓莹毛以朝
Owner CHINA PETROLEUM & CHEM CORP