Regeneration method and regeneration device for biomass pyrolysis liquid fluidized bed exhaust catalyst

Abstract

The invention discloses a regeneration method and a regeneration device for a biomass pyrolysis liquid fluidized bed exhaust catalyst. The regeneration method comprises the following steps of: A) performing primary cyclone classification to remove micro powder in the exhaust catalyst; B) performing secondary cyclone classification to remove structurally incomplete catalyst particles in the catalyst; C) performing cyclone autorotation to remove a conveying medium carried by a complete structure catalyst; D) performing gas flow acceleration sorting to realize the classification of a high-activity catalyst and a low-activity catalyst; and E) mixing the high activity catalyst and a fresh catalyst and adding into a reactor for utilization. The regeneration device comprises a biomass pyrolysis liquid fluidized bed reactor, a primary cyclone classifier, a primary filter, a secondary cyclone classifier, a secondary filter, a pulsating airflow generator, a cyclone autorotator, a sorter, a cyclone separator and a gas purification tower. The regeneration device can meet the separation and classification requirements of the micro powder, the catalyst with the incomplete structure, and low activity catalyst particles in the exhaust catalyst of the hydrogenation reaction of a biomass pyrolysis liquid.

Description

technical field [0001] The invention belongs to the field of biomass energy and oil product processing, and relates to a treatment method and device for a biomass pyrolysis liquid ebullating bed hydrogenation exhaust catalyst, in particular to a biomass pyrolysis liquid ebullating bed exhaust catalyst Regeneration method and apparatus. Background technique [0002] From the rapid pyrolysis process of straw and wood, biomass pyrolysis liquid products can be obtained; high-quality fuel oil can be obtained by hydrogenating them. Since the biomass pyrolysis solution is easy to condense and coke, and the catalyst life is short, it is advisable to use ebullating bed reactor technology to carry out hydrogenation upgrading. However, in the process of hydrogenation and upgrading of ebullating bed biomass pyrolysis liquid, due to the online discharge of catalyst in the reactor to maintain the equilibrium activity of the catalyst in the reactor, a large amount of catalyst listed as ha...

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Problems solved by technology

[0005] In order to solve the technical problem existing in the prior art that it is difficult to realize the separation and classification of fine powder, structurally incomplete catalyst, and low-activity catalyst particles in the hydrogenation reaction of biomass pyrolysis liquid, the present invention provides a biomass pyrolysis Method and device for regeneration of liquid ebullated bed exhaust catalyst

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