Upgrading method and device for gasoline

A gasoline and heavy oil technology, applied in the petroleum industry, cracking, catalytic cracking and other directions, can solve the problems of high dry gas and coke yield, low liquid yield, and high energy consumption of the device, and achieve the improvement of total liquid yield, reduction of energy consumption, Yield-reducing effect

Active Publication Date: 2008-01-16
LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention is aimed at the gasoline upgrading reaction in the existing double riser catalytic cracking unit, especially the high dry gas and coke yield, less liquid recovery, high device energy consumption and high gasoline desulfurization rate brought about by the high temperature reforming reaction. Lower problem, and provide a kind of new gasoline modification method, in addition, the present invention also provides the device used for implementing this gasoline modification method

Method used

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  • Upgrading method and device for gasoline

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1 (comparative example)

[0030] The test was carried out on a common double-riser catalytic cracking test device. The gasoline riser reactor of the double-riser catalytic cracking test device is a conventional structure, and no catalyst mixer and catalyst delivery pipe are installed. The heavy oil riser reactor processing pipe transports mixed heavy oil, and the processing capacity is 30kg / d (kg / day); the inferior gasoline feedstock of the gasoline riser reactor is the gasoline produced by the heavy oil riser reactor (self-produced gasoline), and the processing capacity is 30kg / d (kg / day); The amount is 15kg / d. The catalyst used in the test is CC-FD industrial balancer, the microreaction activity of the balance catalyst is 62, and the carbon content is 0.05w%. The main properties of the heavy oil riser reactor feed and the inferior gasoline feed of the gasoline riser reactor are listed in Table 1, and the main operating conditions of the heavy oil riser rea...

Embodiment 2

[0031] Embodiment 2 (comparative example)

[0032] According to Example 1, the difference is that the reaction temperature of the gasoline riser reactor is 480°C. The operating conditions are listed in Table 2, and the product distribution and main properties of the modified gasoline are listed in Table 3.

Embodiment 3

[0033] Embodiment 3 (comparative example)

[0034] According to Example 1, the difference is that the reaction temperature of the gasoline riser reactor is 500°C. The operating conditions are listed in Table 2, and the product distribution and main properties of the modified gasoline are listed in Table 3.

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Abstract

The invention discloses a method and a device for gasoline upgrading, mainly solving the problems of high yield of dry gas and coke and low liquid recovery during the gasoline upgrading reaction in the double-riser catalytic cracking device, high energy consumption of the device and low desulphurization efficiency. The method is mainly characterized by the steps as follows: some of the regenerated catalysts returning to the heavy oil riser reactor; some of the regenerated catalysts mixing with the recycled catalysts from the rapid bed reactor in the catalysts mixer before contacting with the gasoline of poor quality and entering part I of the gasoline riser reactor, the rapid bed reactor, and the part II of the gasoline riser reactor; reactants flowing into a second settler for separation; upgrading reaction oil and gas entering the fractionation system for fractionating; spent catalysts entering the regenerators for coke burning regenerating. The invention can reduce dry gas and coke yield and improve the total liquid yield and meanwhile decrease the energy consumption of the whole device.

Description

technical field [0001] The invention belongs to the field of petroleum refining, and in particular relates to a gasoline upgrading method and device. Background technique [0002] With the rapid development of the economy, the consumption of refined oil is increasing day by day, and the environmental pollution caused by automobile exhaust emissions has also attracted more and more attention from the world. It is imperative to improve the quality of refined oil products and reduce environmental pollution. The "Standards for the Control of Hazardous Substances in Motor Gasoline" promulgated by the State Environmental Protection Administration has been implemented nationwide since April 1, 2003. Aromatics and benzene content are below 40v% and 2.5v%, respectively. Moreover, after July 1, 2005, the new index of gasoline sulfur content not greater than 0.05w% has been implemented in motor gasoline. [0003] Catalytic cracking technology is the most important heavy oil processi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/00
Inventor 闫鸿飞王龙延刘金龙李玖云王文柯陈曼桥武立宪张亚西
Owner LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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