Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method for catalyzing hydrocarbon for recombinant production of high-quality gasoline

A high-quality, catalytic hydrocarbon technology, applied in the direction of gasoline stabilization, refined hydrocarbon oil, petroleum industry, etc., to achieve the effect of low sulfur content, low olefin content and low cost

Active Publication Date: 2012-11-14
丁冉峰
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the increasingly stringent environmental protection requirements and the continuous improvement of gasoline and diesel standards, the existing catalytic hydrocarbon processing method through fractionation tower fractionation shows the following deficiencies One is that the quality of gasoline and diesel oil produced by this treatment method needs to be improved: the olefin content of gasoline is on the high side, and the octane number (RON) is on the low side, and the cetane number of diesel oil is on the low side, and the stability does not meet the requirements; The above-mentioned processing method cannot produce gasoline of various grades at the same time, and the product variety is single; the third is that the ratio of the produced diesel oil and gasoline does not match the market demand, diesel oil cannot meet the demand, and gasoline supply exceeds demand
The improvement of catalytic cracking process or catalyst cannot fundamentally solve the problem of sulfur. Hydrodesulfurization of catalytic cracking feedstock is impossible to be applied on a large scale due to large investment, high operating costs, and limited conditions of existing refineries. Refineries for sour crude oils are not suitable, and over-reduction of olefins in catalytic cracking units can exacerbate light products and gasoline octane number (RON) losses

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for catalyzing hydrocarbon for recombinant production of high-quality gasoline
  • System and method for catalyzing hydrocarbon for recombinant production of high-quality gasoline
  • System and method for catalyzing hydrocarbon for recombinant production of high-quality gasoline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 Shown is a schematic flow diagram of one of the embodiments of the present invention, the distillation range is 30-205 ° C, the sulfur content is 100 ppm, the mercaptan content is 5 ppm, the olefin content is 30% (v), and the diene content is 0.1%. (v), with an aromatic content of 15% (v), an octane number (RON) of 89, and a density of 728 kg / m 3 The stable gasoline (catalytic gasoline) is cut and fractionated in distillation tower 1 with a flow rate of 100,000 tons / year. The tower top temperature of distillation tower 1 is 82 ° C, the tower bottom temperature is 190 ° C, and the tower top pressure is 0.2 MPa (absolute ), the tower bottom pressure is 0.25MPa (absolute), fractionation obtains light gasoline and heavy gasoline respectively, and described light gasoline (distillation range is 30-80 ℃) is steamed by distillation tower 1 top, and its total steaming amount is 4 10,000 tons / year; the heavy gasoline (distillation range is 80-205°C) enters th...

Embodiment 2

[0056] Such as diagram 2-1 Shown is a schematic flow chart of Embodiment 2 of the present invention. The distillation range is 30-205°C, the sulfur content is 100ppm, the mercaptan content is 5ppm, the olefin content is 30% (v), the diene content is 0.1% (v), the aromatic content is 15% (v), octane The alkane number (RON) is 89 and the density is 728 kg / m 3 The stable gasoline (catalytic gasoline) is cut and fractionated in distillation tower 1 with a flow rate of 100,000 tons / year. The tower top temperature of distillation tower 1 is 86 ° C, the tower bottom temperature is 192 ° C, and the tower top pressure is 0.2 MPa (absolute ), the pressure at the bottom of the tower is 0.25MPa (absolute), and the fractional distillation obtains light gasoline and heavy gasoline respectively. Hydrotreating, the total distillation of light gasoline after hydrogenation is 40,000 tons / year; the catalyst in the hydrogenation unit 3-1 is a selective hydrogenation catalyst GHT-20; the hydro...

Embodiment 3

[0063] Such as Figure 2-2 Shown is a schematic flow chart of the third embodiment of the present invention. The distillation range is 30-205°C, the sulfur content is 2000ppm, the mercaptan content is 50ppm, the olefin content is 40% (v), the diene content is 1.0% (v), the aromatic content is 19% (v), octane The alkane number (RON) is 91 and the density is 728 kg / m 3 The stable gasoline (catalytic gasoline) is cut and fractionated in distillation tower 1 with a flow rate of 100,000 tons / year. The tower top temperature of distillation tower 1 is 86 ° C, the tower bottom temperature is 192 ° C, and the tower top pressure is 0.2 MPa (absolute ), the pressure at the bottom of the tower is 0.25MPa (absolute), and the fractional distillation obtains light gasoline and heavy gasoline respectively. Hydrotreating, the total distillation of light gasoline after hydrogenation is 43,000 tons / year; the catalyst in the hydrogenation unit 3-1 is a selective hydrogenation catalyst GHT-20; ...

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

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a system and a method for preparing high-quality gasoline by recombination of catalyzed hydrocarbon. The system comprises a distillation apparatus, and is characterized in that the upper part of the distillation apparatus is connected with a light gasoline hydrogenation device; the lower part of the distillation apparatus is connected with an extraction system through a heavy gasoline pipeline; the lower part of the extraction system is connected with a hydrogenation device through a pipeline; and the hydrogenation device is connected with the light gasoline pipeline on the upper part of a catalytic unit through a pipeline. Catalysts and parameters of the hydrogenation device aim at aromatic hydrocarbon; and the sulphur content of the obtained blended gasoline are lower, and the olefinic content is lower (below 1 percent), which meet the requirements of national standard 4.

Description

technical field [0001] The invention relates to a system and method for preparing high-quality gasoline by catalyzing hydrocarbon recombination. Background technique [0002] Catalytic cracking, catalytic cracking and heavy oil catalytic cracking technologies are the core technologies of oil refining. Catalytic cracking is divided into wax oil catalytic cracking and heavy oil catalytic cracking; the oil produced from these processes is collectively called catalytic hydrocarbons, and the obtained catalytic hydrocarbons are generally The fractionation tower can fractionate dry steam, liquefied gas, gasoline, diesel, heavy oil and other products, among which gasoline and diesel account for more than 70% of the total supply of gasoline and diesel in the market. [0003] Along with more and more stringent environmental protection requirements, the standard of gasoline, diesel oil improves constantly, and the processing method of existing catalytic hydrocarbon through fractionati...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10G7/02C10G21/00C10G45/00
Inventor 丁冉峰
Owner 丁冉峰