A kind of treatment method of catalytic cracking gasoline
A technology for catalytically cracked gasoline and a treatment method, applied in the field of catalytic cracked gasoline treatment, can solve problems such as the use of gasoline blending components, gasoline yield loss, etc., and achieve the effects of high octane number, lower energy consumption, and avoid toxic effects
Active Publication Date: 2018-04-10
SINOPEC ENG +1
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[0003] However, the low-carbon olefins and low-carbon alkanes in the catalytic cracking gasoline components cannot be used as gasoline blending components, resulting in the loss of gasoline production
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[0028] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0029] The invention provides a treatment method for catalytic cracking gasoline, the method comprising: a, preheating catalytic cracking gasoline and hydrogen, sending them into a desulfurization reactor to contact with an adsorption desulfurization catalyst, and performing an adsorption desulfurization reaction at 400-440°C to obtain Desulfurization product; b. After cooling the desulfurization product obtained in step a to 110-150°C, directly enter the hot product gas-liquid separation tank for gas-liquid separation to obtain hot high-resolution gas and hot high-resolution liquid; c. After the obtained hot high-fraction gas is cooled to 35-45°C, it directly e...
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The invention discloses a method for treating catalytic gasoline. The method comprises a step a of preheating and sending catalytic gasoline and hydrogen into a desulfurization reactor to contact with an adsorption desulfurization catalyst to perform adsorption desulfurization reaction at 400-440 DEG C, and obtaining a desulfurization product; a step b of cooling the desulfurization product obtained in the step a to 110-150 DEG C, directly entering a thermal product gas-liquid separation tank to perform gas-liquid separation, and obtaining thermal macromolecular gas and thermal macromolecular liquid; a step c of cooling the thermal macromolecular gas and the thermal macromolecular liquid which are obtained in the step b to 35-45 DEG C, directly entering a cold product gas-liquid separation tank to perform gas-liquid separation, and obtaining cold macromolecular gas and cold macromolecular liquid; a step d of causing the cold macromolecular liquid obtained in the step c to undergo aromatization reaction under the effect of an aromatization catalyst, and obtaining an aromatization product. According to the method, the sulfur content of the catalytic gasoline is reduced on the premise of reducing energy consumption, light alkane and light olefins therein are utilized, and the economy of a gasoline adsorption desulfurization device is improved.
Description
technical field [0001] The invention relates to a treatment method for catalytic cracking gasoline. Background technique [0002] With the improvement of environmental protection requirements, my country's requirements for the sulfur content of gasoline for vehicles are becoming increasingly stringent. According to the national standard GB 17930 for motor gasoline, the sulfur content of motor gasoline shall not exceed 10ppm from January 1, 2018. FCC gasoline adsorption desulfurization technology has been widely used because of its high desulfurization rate and small loss of octane number. [0003] However, the low-carbon olefins and low-carbon alkanes in the catalytic cracking gasoline components cannot be used as gasoline blending components, resulting in the loss of gasoline production. Contents of the invention [0004] The purpose of the present invention is to provide a treatment method for catalytic cracking gasoline, which can reduce the sulfur content of catalyti...
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IPC IPC(8): C10G67/02
Inventor 孙丽丽吴德飞杨雁袁忠勋黄泽川王传真黄福荣安娜
Owner SINOPEC ENG