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Fully sulfurized hydrofining catalyst and preparation method thereof, and distillate oil hydrofining method

A hydrorefining and complete sulfurization technology, applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem that the sulfurization degree and dispersion degree of active metal Ni are uncontrollable and disadvantageous, and the catalyst preparation cost is high. problems, to achieve good application prospects, reduce workload, and shorten the start-up time.

Inactive Publication Date: 2019-04-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of the above-mentioned patent can avoid the formation of strong interaction between the active metal and the support caused by the use of oxygen-containing salts, but the preparation method uses two-step impregnation and two-step roasting treatment method, the catalyst preparation cost is high, and the active metal Ni or Co The degree of sulfidation and dispersion are uncontrollable, which is not conducive to the formation of highly dispersed Co(Ni)Mo(W)S active phase

Method used

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  • Fully sulfurized hydrofining catalyst and preparation method thereof, and distillate oil hydrofining method
  • Fully sulfurized hydrofining catalyst and preparation method thereof, and distillate oil hydrofining method
  • Fully sulfurized hydrofining catalyst and preparation method thereof, and distillate oil hydrofining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Take 100g of pseudo-boehmite, add 4g of scallop powder, mix evenly, add dropwise an aqueous solution containing 4g of nitric acid and 4g of citric acid and knead, extrude into a clover shape of 1.5mm, dry at 120°C for 2h, and then roast at 550°C for 4h. Make a carrier.

[0048] Get 13.0g ammonium thiomolybdate [(NH 4 ) 2 MoS 4 ], 1.41g CS (NH 2 ) 2 , 3.38g nickel nitrate, 2.13g L-proline, 50mL deionized water, stir until completely dissolved.

[0049] 20.38g of the carrier and the above solution were respectively added into a 100mL hydrothermal reaction kettle, and crystallized at 200°C for 24h.

[0050] The product was washed and dried to obtain Catalyst A.

Embodiment 2

[0052] Take 100g of pseudo-boehmite, add 4g of scallop powder, mix evenly, add dropwise an aqueous solution containing 4g of nitric acid and 4g of citric acid and knead, extrude into a clover shape of 1.5mm, dry at 120°C for 2h, and then roast at 550°C for 4h. Make a carrier.

[0053] Get 13.0g ammonium thiomolybdate [(NH 4 ) 2 MoS 4 ], 1.41g CS (NH 2 ) 2 , 3.38g nickel nitrate, 2.13g L-proline, 50mL deionized water, stir until completely dissolved.

[0054] 24.20 g of the carrier and the above solution were respectively added into a 100 mL hydrothermal reaction kettle, and crystallized at 230° C. for 16 h.

[0055] The product was washed and dried to obtain Catalyst B.

Embodiment 3

[0057] Take 100g of pseudo-boehmite, add 4g of scallop powder, mix evenly, add dropwise an aqueous solution containing 4g of nitric acid and 4g of citric acid and knead, extrude into a clover shape of 1.5mm, dry at 120°C for 2h, and then roast at 550°C for 4h. Make a carrier.

[0058] Get 13.0g ammonium thiomolybdate [(NH 4 ) 2 MoS 4 ], 1.41g CS (NH 2 ) 2 , 3.38g nickel nitrate, 2.13g L-proline, 50mL deionized water, stir until completely dissolved.

[0059] 29.12 g of the carrier and the above solution were respectively added into a 100 mL hydrothermal reaction kettle, and crystallized at 210° C. for 20 h.

[0060] The product was washed and dried to obtain catalyst C.

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Abstract

The invention discloses a fully sulfurized hydrofining catalyst and a preparation method thereof. The catalyst includes, according to the mass of the catalyst being 100%, 20.3-26.1% of MoS2, and 5.8-7.4% of NiS2, with the balance being aluminum oxide; and the specific surface area of the catalyst is 250-450 m<2> / g, and the pore volume is 0.4-0.6 mL / g. The catalyst is the fully sulfurized catalyst,so that vulcanization or activation is not needed, and therefore, the catalyst can have high hydrodesulfurization and denitrification activity, and can be used as the hydrofining catalyst. A distillate oil hydrofining method is also disclosed. The method takes the fully sulfurized hydrofining catalyst as the catalyst.

Description

technical field [0001] The invention relates to the field of hydrofining, in particular to a sulfurized hydrofining catalyst and a preparation method thereof, and a distillate hydrofining method catalyzed by the above-mentioned catalyst. The catalyst is suitable for hydrogenation in the field of petroleum refining Refining process. Background technique [0002] Hydrofining, hydrotreating, hydrocracking and other oil refining catalytic hydrogenation production processes are environmentally friendly oil refining production processes, which can be widely used in the production of clean petroleum products such as gasoline, kerosene, diesel oil, lubricating oil, and paraffin. With the continuous upgrading of product quality, increasingly stringent environmental protection regulations, and increasingly inferior and heavy crude oil, hydrogenation technology has been widely valued and applied all over the world. The processing capacity of hydrogenation units in my country's oil ref...

Claims

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Application Information

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IPC IPC(8): B01J27/051B01J35/10B01J37/10C10G45/08
CPCC10G45/08B01J27/051B01J37/0018B01J37/10C10G2300/202C10G2300/1037B01J35/635B01J35/633B01J35/615
Inventor 徐铁钢马宝利孙发民张文成郭金涛王刚徐伟池温广明宋金鹤王丹谭明伟张全国吴显军郭立艳丛丽茹赵檀张国甲董春明梁宇王紫东
Owner PETROCHINA CO LTD
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