Method for producing clean diesel oil and light aromatic hydrocarbons from inferior diesel oil
A technology for low-quality diesel oil and light aromatics, which is applied in the fields of hydrocarbon oil treatment products, petroleum industry, and hydrocarbon oil treatment. It can solve the problems of low separation efficiency in the extraction process, poor selectivity of aromatics, and harsh reaction conditions, and achieve low reaction pressure. , less loss of aromatics and high selectivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0039] Example 1
[0040] (1) The catalyst used in the hydrorefining of raw diesel oil is Ni / Mo-Al 2 O 3 Commercial catalyst FH-98, the catalyst loading of the hydrofining reactor is 200ml, the reaction temperature is 380℃, the reaction pressure is 6MPa, and the reaction space velocity is 1.0h -1 , The properties of the hydrogenated diesel oil obtained are shown in Table 2.
[0041] (2) Hydrogenated diesel pretreatment adsorption, the pretreatment adsorbent is industrial X molecular sieve, the specific surface area is 490m 2 / g, silicon to aluminum ratio SiO 2 / Al 2 O 3 =2.5, the adsorbent loading is 400ml, the adsorption temperature is 30℃, the pressure is 0.8MPa, and the adsorption space velocity is 0.5h -1 .
[0042] (3) The simulated moving bed adsorption device contains 12 adsorption beds, which are divided into adsorption zone, isolation zone, regeneration zone, and purification zone. The beds are allocated to 3-2-3-4, and the adsorbent is magnesium modified oxidation The conte...
Example Embodiment
[0044] Example 2
[0045] (1) The hydrorefining of raw material diesel oil is the same as in Example 1, and the properties of the obtained hydrogenated diesel oil are shown in Table 2.
[0046] (2) The adsorbent used for the pretreatment and adsorption of hydrogenated diesel oil is clay, and the other conditions are the same as in Example 1.
[0047] (3) The adsorption temperature of the simulated moving bed is 75°C, the valve switching time is 320-360s, and the mass ratio of desorbent to raw material is 1.8:1. Other conditions are the same as in Example 1. The composition of each component is shown in Table 3.
[0048] (4) The heavy aromatics and hydrogen are mixed into the lightweight reactor. The catalyst Pt content used is 0.15%, the reaction pressure is 3.0MPa, and the reaction temperature is 370-380°C. Other conditions are the same as in Example 1. The product composition is shown in Table 4.
Example Embodiment
[0049] Example 3
[0050] (1) The hydrorefining of raw diesel oil is the same as in Example 1, and the properties of the obtained hydrogenated diesel are shown in Table 2.
[0051] (2) The adsorbent used for the pretreatment of hydrogenated diesel oil is alumina, and the other conditions are the same as in Example 1.
[0052] (3) The adsorption temperature of the simulated moving bed is 80°C, the valve switching time is 300-340s, and the mass ratio of desorbent to raw material is 1.6:1. Other conditions are the same as in Example 1. The composition of each component is shown in Table 3.
[0053] (4) The heavy aromatics and hydrogen are mixed into the lightweight reactor. The catalyst Pt content used is 0.13%, the reaction pressure is 3.2MPa, and the reaction temperature is 370-380°C. Other conditions are the same as in Example 1. The product composition is shown in Table 4.
[0054] Table 1 Data sheet of raw material diesel properties
[0055]
[0056] Table 2 Data table of diesel oil p...
PUM
Property | Measurement | Unit |
---|---|---|
Specific surface area | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap