A kind of hydrocracking method for producing jet fuel
A technology for hydrocracking and jet fuel, applied in the field of coal chemical industry, can solve the problem of not being able to produce jet fuel in maximum quantity, and achieve the effects of increasing jet fuel, reducing hydrogen consumption, and reducing the amount of cold hydrogen
Active Publication Date: 2020-02-28
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
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
specific Embodiment approach 1
[0059] Specific embodiment 1: The final boiling point of the external middle distillate outside the system is 280-320°C, and the hydrocracking reactor contains two catalyst beds, and the external middle distillate from outside the system is Introduced between the first catalyst bed and the second catalyst bed.
specific Embodiment approach 2
[0060] Specific embodiment 2: The final boiling point of the external middle distillate outside the system is 280-320°C, and the hydrocracking reactor contains 3 catalyst beds, and the external middle distillate from outside the system is Introduced between the second catalyst bed and the third catalyst bed.
specific Embodiment approach 3
[0061] Embodiment 3: The final boiling point of the external middle distillate outside the system is 280-320°C, and the external middle distillate from outside the system is introduced into the third catalyst bed and the fourth catalyst bed between.
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 relates to the field of coal chemical industry, and discloses a hydrocracking method for producing aviation kerosene. The hydrocracking method comprises: in the presence of hydrogen, sequentially carrying out a reaction on raw material oil through a hydrorefining reactor and a hydrocracking reactor to obtain a hydrocracking effluent; introducing the hydrocracking effluent into a separation device, and sequentially carrying out gas-liquid separation and fractionation to obtain a light naphtha distillate, a heavy naphtha distillate, an aviation kerosene distillate, a middle distillate oil and a tail oil distillate; introducing all the middle distillate oil into the first catalyst bed layer of the hydrocracking reactor, and recycling; and recycling more than 60 wt% of the tail oil distillate so as to carry out hydrorefining and hydrocracking with the raw material oil. With the method of the present invention, the aviation kerosene yield of the hydrocracking device can be substantially improved; and compared to other methods in the prior art, the method of the present invention has the following advantages that the selectivity and the quality of the aviation kerosene arehigh, the hydrogen consumption is low, and the required amount of cold hydrogen is low.
Description
technical field [0001] The invention relates to the field of coal chemical industry, in particular to a hydrocracking method for producing jet fuel. Background technique [0002] Hydrocracking technology is a technology that reacts heavy fractions such as vacuum gas oil (VGO) with hydrogen in the presence of a catalyst to achieve the dual purpose of improving product quality and reducing heavy oil products. Hydrocracking can produce a wide range of products from gas, naphtha, middle distillates and unconverted tails. [0003] The continuous development of my country's national economy has promoted the rapid improvement of transportation capacity, and the demand for air transportation fuel is also increasing recently. Usually, the sources of aviation kerosene fractions mainly include: sweetening of kerosene fractions obtained through distillation units; and production of jet kerosene through hydrocracking process of vacuum wax oil. Due to the limitation of crude oil process...
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
CPCC10G67/02
Inventor 赵阳孟勇新赵广乐毛以朝龙湘云
Owner CHINA PETROLEUM & CHEM CORP