Method for improving selectivity of ethylene propylene
An ethylene-propylene, selective technology, applied in ethylene production, chemical instruments and methods, molecular sieve catalysts, etc., can solve difficult problems such as uniform distribution of raw materials, complex contact conduit structure, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0016] [Example 1]
[0017] The 200,000-ton / year methanol production of low-carbon olefins adopts processes such as figure 1 Fluidized bed reactor shown. The diameter of the reactor is 3100 mm, the distribution plate is covered with high-alumina bricks of insulating material, the thickness is 200 mm, the pressure is 0.06MPaG, the reaction temperature is 470°C, and the space velocity is 6.0 hours. -1 , the perforation speed is 186.8 m / s, the side seam speed is 8.5 m / s, the SAPO-34 molecular sieve catalyst is used, the reaction raw material is pure methanol, the temperature of the raw material before contact with the catalyst is 150 ℃, the selectivity of ethylene + propylene 82.18%.
Example Embodiment
[0018] [Example 2]
[0019] The 300,000-ton / year methanol production of low-carbon olefins adopts processes such as figure 1 Fluidized bed reactor shown. The diameter of the reactor is 3900 mm, the insulating material under the distribution plate is covered with high-temperature calcium silicate, the thickness is 110 mm, the pressure is 0.06MPaG, the reaction temperature is 450°C, and the space velocity is 0.5 hours. -1 , the perforation speed is 142.1 m / s, the side seam speed is 12.0 m / s, the SAPO-34 molecular sieve catalyst is used, the reaction raw material is pure methanol, the temperature of the raw material before contact with the catalyst is 200 ℃, the selectivity of ethylene + propylene 81.55%.
Example Embodiment
[0020] [Example 3]
[0021] The 300,000-ton / year methanol production of low-carbon olefins adopts processes such as figure 1 Fluidized bed reactor shown. The diameter of the reactor is 3900 mm, the insulating material is covered with silicon oxide-alumina ceramics under the distribution plate, the thickness is 160 mm, the pressure is 0.06MPaG, the reaction temperature is 500°C, and the space velocity is 3.0 hours. -1 , the perforation speed is 101.5 m / s, the side seam speed is 22.8 m / s, the SAPO-34 molecular sieve catalyst is used, the reaction raw material is pure methanol, the temperature of the raw material before contact with the catalyst is 160 ° C, the selectivity of ethylene + propylene 81.87%.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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