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A hydrogenation catalyst and its continuous production method and device

A hydrogenation catalyst and catalyst technology, applied in the field of distillate oil hydrogenation, can solve problems such as low production efficiency and unstable product quality, and achieve the effects of increasing production efficiency, improving surface acidity, and reducing production costs

Active Publication Date: 2019-10-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, the production methods of pseudo-boehmite are mainly inorganic aluminum salt method and organic aluminum salt method. The production process mostly adopts batch tank reactor, which has many problems such as unstable product quality and low production efficiency. How to realize pseudo-boehmite Continuous production of bauxite is an urgent problem to be solved

Method used

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  • A hydrogenation catalyst and its continuous production method and device
  • A hydrogenation catalyst and its continuous production method and device
  • A hydrogenation catalyst and its continuous production method and device

Examples

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Embodiment 1

[0044] This example introduces the preparation method of Mo, Ni, P original solution. In this example, only one original solution of Mo, Ni, and P with one concentration and ratio is prepared, and solutions with other ratios and concentrations can be prepared according to the method introduced.

[0045] Take 386g of molybdenum oxide and 123g of basic nickel carbonate into a multi-necked flask, add a certain amount of deionized water, stir until the substance in the bottle is slurry, then slowly add 86g of phosphoric acid, and then heat slowly after the initial reaction , keep the solution temperature at 90-110°C for 1-3 hours, stop heating, filter the obtained solution while it is hot, and then add phosphoric acid to adjust the pH value of the solution to 1.0-4.0 to obtain a clear dark green original solution. The solution composition is MoO 3: 69.27g / 100ml; NiO: 12.49g / 100ml.

Embodiment 2

[0047] Dimethylammonium chloride 300g, ammonium tetrafluoroborate 190g, pure water 450g, mixed, heated to 80°C under stirring, kept at constant temperature for 1h, clarified, naturally cooled to about 30°C, centrifuged to filter out the solid to obtain 300g of ionic liquid, The water content is about 3.5wt%, and the yield is 73wt%.

[0048] Add 2L of bottom water to the reaction tank and each swing tank, heat the temperature of the reaction tank to 60°C, heat each swing tank to 90°C, adjust the stirring rate of the reaction tank to 200rad / min, adjust the stirring speed of each reaction tank to 400rad / min; open the feed inlet at the upper end of the reactor, and the concentration is 100g / 100mlAl with the flow rate of 60ml / min 2 o 3 Aluminum sulfate solution and a concentration of 100g / 100ml Al at a flow rate of 40ml / min 2 o 3 Add the sodium metaaluminate solution in the reaction tank, adjust the pH value to 8.5, and after stabilizing for 10 minutes, open the overflow port at...

Embodiment 3

[0050] 400g of triethylammonium chloride, 220g of sodium hexafluorophosphate, and 450g of pure water were mixed, heated to 90°C under stirring, kept at a constant temperature for 3 hours, clarified, naturally cooled to about 30°C, and centrifuged to filter out the solid to obtain 450g of ionic liquid I. The water content is about 3.5wt%, and the yield is 72wt%.

[0051] Add 3L of bottom water to the reaction tank and each swing tank, heat the temperature of the reaction tank to 80°C, heat each swing tank to 100°C, adjust the stirring rate of the reaction tank to 300rad / min, adjust the stirring speed of each reaction tank To 500rad / min; Open the feed inlet at the upper end of the reactor, with the flow velocity of 80ml / min, the concentration is 80g / 100mlAl 2 o 3 Aluminum sulfate solution and a concentration of 100g / 100ml Al at a flow rate of 30ml / min 2 o 3 Add the sodium metaaluminate solution into the reaction tank, adjust the pH value to 7.0, and after stabilizing for 20 m...

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Abstract

The invention discloses a hydrogenation catalyst and a continuous production method and device. The hydrogenation catalyst of the present invention is a bulk hydrogenation catalyst and includes an alumina carrier, an active metal and an auxiliary agent, wherein the active metal is selected from one or more of Group VIII and / or Group VIB metal elements; based on the weight of the catalyst , the active metal is calculated as oxide, the Group VIII metal is 1wt% to 9wt%, preferably 1.0wt% to 5.0wt%, the VIB Group metal is 5wt% to 25wt%, preferably 10wt% to 20wt%, and the additives are phosphorus and fluorine , boron, alumina carrier is 66wt%~94wt%. The surface active metal density in the hydrogenation catalyst is greater, and the concentration of active metals and additives shows a gradual increasing trend from the inside to the outside along the particle size. The method of the present invention has a higher utilization rate of hydrogenation active metals, can effectively improve the acidity of the catalyst surface, slow down the deactivation speed of the catalyst, realize the continuous production of the hydrogenation catalyst, improve the production efficiency, and reduce the production cost.

Description

technical field [0001] The invention relates to the field of hydrogenation of distillate oil, in particular to a hydrogenation catalyst and a continuous production method and device. Background technique [0002] Crude oil and distillates derived from crude oil contain impurities such as sulfur, nitrogen, oxygen and metals. The existence of these impurities not only affects the stability of the oil, but also emits SO during use. X , NO X and other harmful gases pollute the environment. During the secondary processing of oil products, the presence of impurities such as sulfur, nitrogen, oxygen and metals can poison catalysts. Therefore, removing the above-mentioned impurities is an important process in oil processing. Distillate oil hydrotreating refers to the process of contacting raw oil and hydrogen with a catalyst at a certain temperature and pressure to remove impurities and saturate aromatics. [0003] Typical hydrotreating catalysts are metal oxides of Group VIII ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/132B01J27/188B01J27/19B01J35/10C10G45/08
CPCC10G45/08B01J27/132B01J27/188B01J27/19C10G2300/202C10G2300/70B01J35/651B01J35/635B01J35/633
Inventor 吕振辉薛冬彭绍忠张学辉佟佳杨涛
Owner CHINA PETROLEUM & CHEM CORP