Catalytic hydrocarbon reforming treatment method

A processing method and a technology for catalyzing hydrocarbons, which are applied in the fields of naphtha catalytic reforming, hydrocarbon distillation, and refined hydrocarbon oil, etc., which can solve problems such as high operating costs, scale limitations, and reduced diesel-gasoline ratio, and achieve short construction period and high construction efficiency. The effect of small investment and low operation cost

Inactive Publication Date: 2007-01-17
BEIJING GRAND GOLDEN BRIGHT ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 fractionation column fractionation shows following deficiency: one is that the quality of gasoline and diesel oil produced by this processing method needs to be improved. Improvement: the olefin content of gasoline is on the high side, the octane number is on the low side, and the cetane number of diesel oil is on the low side; Second, the above-mentioned treatment method cannot produce gasoline of various grades at the same time, and the product variety is single; Third, the diesel oil produced, The proportion of gasoline does not match the demand of the market, diesel cannot meet the demand, and the supply of gasoline exceeds the demand
[0005] The above-mentioned measures have the following problems: ① construction investment is huge, operating costs are high, the scale is limited by raw materials, and there are irrational utilization of resources at the same time, such as reformed oil is the main raw material for polyester production, and a large amount of reformed oil is used for high The blending components of gasoline with octane number exacerbate the shortage of polyester raw materials that are already in short supply; ②The use of new catalysts can increase the octane number of gasoline, but it will lead to a substantial increase in the olefin content in gasoline. ③Ad

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Examples

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Example Embodiment

[0033] Example 1

[0034] Such as figure 1 As shown, the paraffin-based catalytic feedstock and refining oil are produced under the action of the LCS catalyst produced by Lanzhou Catalyst Factory to produce catalytic hydrocarbons, and the obtained catalytic hydrocarbons are added to fractionation tower 1 for cutting and fractionation. The top temperature of fractionation tower 1 is 80°C, and the diesel outlet temperature is 240°C, the bottom temperature of the tower is 370°C, the top pressure is 0.1MPa, and the bottom pressure is 0.12Mpa; a side-line extraction outlet is added in the middle of the fractionation tower 1 to cut the middle distillate, and the side-line extraction outlet temperature is 190°C. The distillation range of the middle distillate is 120~210℃, and the obtained middle distillate is pumped into the extraction device for solvent extraction and separation. The solvent used is sulfolane, the extraction temperature is 80℃, the extraction pressure is 0.4MPa, and the...

Example Embodiment

[0037] Example 2

[0038] The intermediate base constant residue heavy oil catalytic feedstock and refining oil are produced under the action of the LANET-35 catalyst produced by Lanzhou Catalyst Factory to produce catalytic hydrocarbons. The obtained catalytic hydrocarbons are fed to fractionation tower 1 for cutting and fractionation. The top temperature of fractionation tower 1 is 80°C, and the diesel oil outlet The temperature is 240℃, the bottom temperature is 370℃, the top pressure is 0.1MPa, and the bottom pressure is 0.12Mpa; in the middle of the fractionation tower 1, three side-line extraction outlets are added to cut the middle distillate, from top to bottom. The outlet temperature of each sideline is 170, 180, 190℃, and the middle distillate ranges are 80~120℃, 120~165℃, 165~220℃ respectively. The three middle distillates of the three distillation ranges are pumped into three identical The extraction device is used for solvent extraction and separation, the solvent use...

Example Embodiment

[0041] Example 3

[0042] The naphthenic heavy oil catalytic feedstock and refining oil are produced under the action of the LANET-35 catalyst produced by Lanzhou Catalyst Factory to produce catalytic hydrocarbons. The obtained catalytic hydrocarbons are fed to fractionation tower 1 for cutting and fractionation. The top temperature of fractionation tower 1 is 80°C, and the diesel outlet temperature is The temperature at the bottom of the tower is 240°C, the temperature at the bottom of the tower is 370°C, the pressure at the top of the tower is 0.18MPa, and the pressure at the bottom of the tower is 0.25Mpa; two side-line extraction outlets are added in the middle of the fractionation tower 1 to cut the middle distillate, two from top to bottom The temperature of the side-line extraction outlet is 180 and 190℃, and the distillation ranges of the middle distillate are 80~165℃ and 165~220℃ respectively. The obtained middle distillate of the two distillation ranges is pumped into tw...

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Abstract

The present invention discloses a catalytic hydrocarbon recombination treatment method, which includes: making the catalytic hydrocarbon pass through catalytic main fractionator to implement fractionation to obtain gasoline fraction and diesel oil fraction, adding an intermediate fraction, making said described intermediate fraction undergo the process of aromatic hydrocarbon extraction treatment to obtain aromatic hydrocarbon component and non-aromatic hydrocarbon component; fractionating aromatic hydrocarbon component and mixing the obtained high octane value gasoline component with the gasoline fraction to raise the octane value of gasoline; fractionating non-aromatic hydrocarbon component and mixing the obtained diesel oil component and diesel oil fraction to raise diesel oil yield and its cetane value.

Description

technical field [0001] The invention relates to a catalytic hydrocarbon recombination treatment method, in particular to a treatment method for catalytic hydrocarbon recombination to prepare high-quality gasoline, diesel oil and chemical light oil. 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 and gas generated from the reverse regeneration system of these processes are collectively called catalytic hydrocarbons, and the obtained catalytic hydrocarbons are processed , Generally, it is fractionated by the main fractionating column, which can fractionate dry gas, liquefied gas, gasoline, diesel, heavy oil and other products. [0003] Along with more and more stringent environmental protection requirements, the standard of gasoline, diesel oil improves constantly, a...

Claims

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Application Information

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IPC IPC(8): C10G7/00C10G21/00C10G35/00C10G35/04
Inventor 丁冉峰冉国朋
Owner BEIJING GRAND GOLDEN BRIGHT ENG & TECH
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