Method of improving catalytic cracking product distribution

A catalytic cracking and product technology, which is applied in catalytic cracking, cracking, petroleum industry, etc., can solve the problems of increasing FCC processing costs, reducing FCC economic benefits, reducing production capacity, etc., to save the amount of enhancer, improve product distribution, and guarantee The effect of production capacity

Inactive Publication Date: 2003-07-16
CHINA PETROLEUM & CHEM CORP
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that such a large amount of addition not only increases the processing cost of F

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1 : Mixed raw material for FCC catalytic cracking in a factory, the carbon residue is 0.70% (m), and the strengthening agent is ethylene oxide and C 12 Block polymers of alcohols and propylene oxide with C 12 Mixtures of block polymers of alcohols in which ethylene oxide and C 12 Block polymers of alcohols and propylene oxide with C 12 The mixing ratio of the alcohol block polymer is 1:9, the number of the strengthening agent is T-01, and its average molecular weight is 640. The dosage of the fortifier is 50×10 -6 (m, for raw material). Before the fortifier is added to the raw oil, it is mixed with the rich C 9 The aromatic hydrocarbons were uniformly mixed at 1:10 (mass ratio). The industrial balance agent RHZ-300 (trade name) with an activity index MA=72 was used to carry out a comparative test with the blank sample on a fixed fluidized bed catalytic cracking experimental device. The process parameters are: agent oil ratio 5.0, air speed 10h -1 , the r...

Example Embodiment

[0023] Example 2 : Catalytic cracking raw material in a factory, mixed with vacuum residue desulfurization (VRDS) residue, the residual carbon is 2.5%-3.0% (m), adding 100×10 -6 (m, for raw material) Enhancer T-01. Before the fortifier is added to the raw oil, it is mixed with rich C 9 The aromatic hydrocarbons were uniformly mixed at 1:10 (mass ratio). The FCC industrial device balancer ZC-7000 (trade name) was used, and its activity index MA=65.0. On the riser catalytic cracking experimental device, the comparative test of the additive and the blank test was carried out. The reaction temperature was 500°C, and the ratio of agent to oil was 5.0. The results are shown in Table 2.

[0024] As can be seen from Table 2, adding 100×10 to the FCC raw material -6 (m) After strengthening agent T-01, the yield of diesel oil can be increased by 1.76 percentage points, the yield of light oil by 1.54 percentage points, the total liquid yield by 1.52 percentage points, the conversi...

Example Embodiment

[0027] Example 3: The industrial application test was carried out on the FCC production unit of a factory. The catalyst used was RHZ-300, and the addition amount of strengthener T-01 was 100×10 -6 (m). Before the fortifier is added to the raw oil, it is mixed with the rich C 9 The aromatic hydrocarbons were uniformly mixed at 1:10 (mass ratio). The process parameters were the same before and after the addition. The reaction temperatures were all 500°C. After adding the agent, due to the reduction in the amount of coke, the regeneration temperature dropped from 698°C to 688°C, and the charcoal to be produced was also reduced from 1.42% to 1.26%. The blank test and additive test results are obtained by on-site calibration. The material balance data obtained from the calibration of the additive and blank test are shown in Table 3.

[0028] It can be seen from Table 3: add 100×10 to the FCC raw material -6 (For raw material, m) After strengthening agent T-01, diesel yield ...

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

No PUM Login to view more

Abstract

A method for improving the distribution of products in catalytic cracking process features that an enhancer is proportionally used as one of raw materials to increase the output rate of light oil andtotal rate of liquid, and decrease the output rate of coke.

Description

Technical field: [0001] The invention belongs to the technical field of catalytic cracking (FCC) in oil refining industry. It involves a new method of improving the distribution of catalytic cracking products. The present invention is by adding trace additives (the present invention is called strengthening agent, and some literature is called activator) in FCC raw material, to reach the purpose of improving the distribution of FCC products. Background technique: [0002] As we all know, in the FCC process, the FCC raw material undergoes catalytic cracking reaction to obtain products such as dry gas, liquefied gas, gasoline, diesel oil, coke and oil slurry. The sum of gasoline yield and diesel yield is called light oil yield; the sum of light oil yield and liquefied gas yield is called total liquid yield. The ideal distribution of catalytic cracking products pursued by refineries should be: as high as possible light oil yield or total liquid yield; as low as possible coke y...

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
IPC IPC(8): C10G11/00
Inventor 周忠国柯兴民陆善祥徐金山李林波达建文林健梁颖杰
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap