Hydrodewaxing method for diesel fraction
A technology for depressurizing hydrogen and diesel oil, which is applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problem of reducing the service life of the depressurizing catalyst by hydrogen, the yield of diesel fraction and the limitation of depressing effect, and the temperature drop. Large and other problems, to achieve low cracking activity, the best effect, the effect of increasing the reaction temperature
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] Will be made of small hole alumina (specific surface 238m 2 g -1 , pore volume 0.48mL·g -1 ) is added to HZSM-5 molecular sieve (97wt% on a dry basis, manufacturer: Tianjin Nankai University Catalyst Factory, SiO 2 / Al 2 o 3 molar ratio 38), mixed evenly, extruded, dried at 130°C for 4 hours, and calcined at 580°C for 4 hours to obtain a carrier.
[0033] The above-mentioned support is added to an aqueous zinc nitrate solution with a weight content of 6% zinc oxide and impregnated by equal volume for 5 hours. After filtering, the obtained solid phase is dried at 120° C. for 4 hours to obtain a zinc-modified support.
[0034] Add cyclohexane to dimethyl silicone oil to obtain a silicone oil-organic mixed solution with a silicon oxide weight concentration of 15%, and then add the zinc-modified carrier to the above-mentioned silicone oil-organic mixed solution to impregnate in equal volume for 3 hours . After filtration, it was dried at 100° C. for 4 hours and calcin...
Embodiment 2
[0037] Will be made of small hole alumina (specific surface 238m 2 g -1 , pore volume 0.48mL·g -1 ) was added to HZSM-5 molecular sieve (same as Example 1), mixed evenly, extruded, dried at 130°C for 4 hours, and calcined at 580°C for 4 hours to obtain a carrier.
[0038] Add the above-mentioned support to the aqueous solution of 3wt% copper nitrate and 3wt% magnesium nitrate with the content of copper oxide and immerse in the aqueous solution of magnesium nitrate with a volume ratio of 1: 1.5. The immersion time is 4 hours. After filtering, the solid phase obtained is passed through 120 °C for 5 hours to obtain a copper- and magnesium-modified support.
[0039] Add solvent gasoline to ethyl silicone oil to obtain a silicone oil-organic mixed solution with a silicon oxide weight concentration of 20%, and then add the copper and magnesium-modified carrier to the above-mentioned silicone oil-organic mixed solution at a volume ratio of 1:1.5 for impregnation, The soaking time ...
Embodiment 3
[0042] Will be made of small hole alumina (specific surface 238m 2 g -1 , pore volume 0.48mL·g -1 ) was added to HZSM-5 molecular sieve (same as Example 1), mixed evenly, extruded, dried at 130°C for 4 hours, and calcined at 580°C for 4 hours to obtain a carrier.
[0043] Add the above carrier to an aqueous solution with a lanthanum oxide content of 9 wt% lanthanum nitrate and impregnate at a volume ratio of 1:1.5 for 4 hours. After filtering, the obtained solid phase is dried at 120°C for 5 hours to obtain lanthanum-modified carrier.
[0044] Add solvent gasoline to ethyl silicone oil to obtain a silicone oil-organic mixed solution with a silicon oxide weight concentration of 20%, then add the lanthanum-modified carrier to the above-mentioned silicone oil-organic mixed solution for immersion at a volume ratio of 1:1.5, and the immersion time for 3 hours. After filtration, it was dried at 120° C. for 4 hours and calcined at 500° C. for 8 hours to obtain a carrier S3 modifi...
PUM
Property | Measurement | Unit |
---|---|---|
Pore volume | aaaaa | aaaaa |
Specific surface area | aaaaa | aaaaa |
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com