Catalytic cracking method
A catalytic cracking and catalyst technology, applied in chemical instruments and methods, catalysts, carbon compound catalysts, etc., can solve problems such as unfavorable cracking reactions, large agent-oil ratio, and poor product distribution, and achieve the effect of reducing thermal cracking reactions.
Active Publication Date: 2020-04-03
CHINA PETROLEUM & CHEM CORP +1
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- Abstract
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- Application Information
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Benefits of technology
The technical effect that this new technology has compared well before it was invented is improved efficiency during production processes caused by reducing heat damage from reactions between oils at high temperatures without losing their quality or causing other problems such as coking issues.
Problems solved by technology
Technologies described involve improving the efficiency of catalysis in petroleum refining processes involving oxidizing organics (OX) like methyl ethersulfonic acid diesters called dimmers). However, these techniques aim to optimize the performance and utilization rate of the overall catalyst cycle.
Method used
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Embodiment 1
[0066] Embodiment 1 is according to the aforementioned flow process in the specific embodiment figure 1 The medium-sized device shown was performed. The properties of raw material A used are shown in Table 1, and the catalyst used is catalyst A. The preheating temperature of the oxygen-containing compound is 360° C., and the carbon content of the semi-spent catalyst is 0.95% by weight. The reaction conditions and product distribution are listed in Table 2.
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The invention relates to a catalytic cracking method. The method comprises the following steps: (1) feeding catalytic cracking raw material oil into the first reaction zone of a catalytic cracking reactor, contacting a catalytic cracking catalyst, and carrying out a first catalytic cracking reaction; (2) continuously carrying out a second catalytic cracking reaction on the obtained first reactionproduct and a semi-spent catalyst in the second reaction zone of the catalytic cracking reactor to obtain a second reaction product and a spent catalyst, sending an oxygen-containing compound into thesecond reaction zone of the catalytic cracking reactor, contacting the first reaction product and the semi-spent catalyst, and carrying out a second catalytic cracking reaction. The method provided by the invention can improve the heat distribution of the catalytic cracking reactor and improve the distribution of reaction products.
Description
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