Combination method for increasing yield of p-xylene in aromatic hydrocarbon production
The technology of paraxylene and combination method is applied in the combined field of increasing paraxylene production in aromatic hydrocarbon production, and can solve the problems of high energy consumption, large circulation volume of xylene separation unit and isomerization unit, low concentration and the like, and achieve adsorption Separation device simplification, flexibility, and concentration enhancement effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0025] [Example 1]
[0026] press figure 2 The process shown in the typical reforming depentane oil C 6 A~C 10 + The composition of each hydrocarbon substance is the basic data, and the ability of the present invention to produce p-xylene and benzene and the processing scale of each unit are investigated. Table 1 shows the composition distribution of aromatics sent from a typical reformer and the flow rate of each component used in this embodiment.
[0027] The transalkylation process unit of benzene and carbon nine aromatic hydrocarbons adopts a fixed-bed reactor, and the reactor is filled with a β-zeolite catalyst containing 0.05% bismuth. The reaction conditions are: reaction temperature of 385°C, pressure of 3.0 MPa, and weight space velocity of 2.0 hour -1 , The hydrogen / hydrocarbon molar ratio is 3.0. After the aromatic hydrocarbon feedstock is mixed with hydrogen, it passes through the catalyst bed from top to bottom for C 9 + The dealkylation reaction of A produces benze...
Example Embodiment
[0043] [Example 2]
[0044] press figure 2 The process shown in the typical reforming depentane oil C 6 A~C 10 + The composition of each hydrocarbon substance is the basic data, and the ability of the present invention to produce p-xylene and benzene and the processing scale of each unit are investigated. Table 1 shows the composition distribution of aromatics sent from a typical reformer and the flow rate of each component used in this embodiment.
[0045] The process unit for the transalkylation of benzene and carbon nine aromatic hydrocarbons adopts a fixed-bed reactor. The reactor is filled with a hydrogen type MCM-22 zeolite catalyst containing 0.30% bismuth. The reaction conditions are: reaction temperature 460℃, pressure 41.0MPa, weight space velocity 3.0 hours -1 , The hydrogen / hydrocarbon molar ratio is 8.0. After the aromatic hydrocarbon feedstock is mixed with hydrogen, it passes through the catalyst bed from top to bottom for C 9 + The dealkylation reaction of A prod...
Example Embodiment
[0055] [Example 3]
[0056] press figure 2 The process shown in the typical reforming depentane oil C 6 A~C 10 + The composition of each hydrocarbon substance is the basic data, and the ability of the present invention to produce p-xylene and benzene and the processing scale of each unit are investigated. Table 1 shows the composition distribution of aromatics sent from a typical reformer and the flow rate of each component used in this embodiment.
[0057] The process unit for the transalkylation of benzene and carbon nine aromatic hydrocarbons adopts a fixed-bed reactor, and the reactor is filled with a hydrogen-type mordenite catalyst containing 0.10% bismuth. The reaction conditions are: reaction temperature of 320°C, pressure of 1.0 MPa, and weight space velocity of 0.8 hour -1 , The hydrogen / hydrocarbon molar ratio is 2.0. After the aromatic hydrocarbon feedstock is mixed with hydrogen, it passes through the catalyst bed from top to bottom for C 9 + The dealkylation reacti...
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