Hydrogenating and pour point depressing catalyst and its preparing method
A hydrogen decondensation and catalyst technology, which is applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high preparation cost, high energy consumption, and reduced acidity of catalysts, achieving good results and reducing Energy consumption, performance improvement effect
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Embodiment 1
[0030] 1. Catalyst preparation
[0031] 8.3g of ammonium metatungstate and 3.9g of nickel nitrate are mixed and ground into a powder of 160 mesh or more, and 37.3g of small pore alumina (with a specific surface area of 238m) with a dry basis content of 67wt% 2.g -1 , Pore volume 0.48mL·g -1 ) Mix well, add 1.5mol / L, 56mL nitric acid aqueous solution and stir to prepare a binder, and 67gHZSM-5 molecular sieve (dry basis 97wt%, manufacturer: Dajin Nankai University Catalyst Factory, SiO 2 / Al 2 O 3 Molar ratio=38) mix together, knead, extrude, dry at 130°C for 4 hours, roast at 580°C for 4 hours, immerse (preparation of impregnation solution: 15.8g nickel nitrate, 1.1g potassium nitrate dissolved in 100mL water), dry at 130°C Calcined at 580°C for 4 hours for 4 hours to obtain a catalyst. The properties are shown in Table 1.
[0032] 2. Process evaluation
[0033] Take Daqing Minian First Line (see Table 2 for the properties of raw materials) as the feedstock oil. The test was car...
Embodiment 2
[0035] 1. Catalyst preparation
[0036] 4.8g of ammonium heptamolybdate and 3.9g of nickel nitrate are mixed and ground into a powder of 160 mesh or more, and 39.6g of small pore alumina (with a specific surface area of 238m) with a dry basis content of 67wt% 2 ·G -1 , Pore volume 0.48mL·g -1 ) Mix well, add 1.5 mol / L, 56mL nitric acid aqueous solution and stir to prepare a binder, and 69.1g HZSM-5 molecular sieve (97wt% dry basis, manufacturer: Tianjin Nankai University Catalyst Factory, SiO 2 / Al 2 O 3 Molar ratio=38) mix together, knead, extrude, dry at 130°C for 4 hours, roast at 580°C for 4 hours, immerse (preparation of impregnation solution: 7.9g nickel nitrate, 1.1g potassium nitrate dissolved in 100mL water), dry at 130°C Calcined at 580°C for 4 hours for 4 hours to obtain a catalyst. The properties are shown in Table 1.
[0037] 2. Process evaluation
[0038] The process conditions are the same as in Example 1, and the process evaluation results are shown in Table 4.
Embodiment 3
[0040] 1. Preparation of catalyst
[0041] 7.15g of ammonium metatungstate and 5.85g of nickel nitrate were dissolved in 56mL of a 1.5 mol / L nitric acid aqueous solution, mixed with 31.3g of small-pored alumina with a dry basis content of 67wt% to prepare a binder, and 72.2g of HZSM -5 molecular sieve (97wt% on dry basis, manufacturer: Tianjin Nankai University Catalyst Factory, SiO 2 / Al 2 O 3 =38) Mix together, kneading, extruding, drying and roasting conditions are the same as in Example 1, impregnation (preparation of impregnation solution: 3.95 nickel nitrate, 9.8g LiNO 3 Dissolved in 100 mL of water), the drying and calcination conditions were the same as in Example 1, to obtain a catalyst, and its properties are shown in Table 1. The process evaluation results are shown in Table 4.
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