Waste hydrogenation catalyst utilization method

A technology of spent hydrogenation catalysts and spent catalysts, which is applied in the direction of catalysts, carbon compound catalysts, chemical instruments and methods, etc., to achieve the effects of improving resource utilization, improving utilization, and saving a lot of costs

Active Publication Date: 2017-07-14
CHINA PETROLEUM & CHEM CORP +1
View PDF11 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only utilizes the hydrogenation active metal components and carrier components in the spent hydrogenation catalyst, but also makes full use of the hydrogenation activity of the spent hydrogenation catalyst, which solves the pollution problem of the spent catalyst, saves resources and improves efficiency. It is technically easy to implement, and the resulting catalyst for ethanol dehydration to ethylene has excellent performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Preparation of catalyst precursor A, the steps are as follows:

[0053] The waste hydrodesulfurization catalyst of the fixed-bed residual oil hydrogenation industrial unit was selected, extracted with petroleum ether solvent for 40 hours, dried at 110°C for 8 hours, and roasted at 600°C for 3 hours to obtain the pretreated waste catalyst (containing MoO 3 : 11.0 wt%, NiO: 5.7 wt%, V 2 o 5 : 3.0 wt%, Al 2 o 3 : 69.0 wt%, SiO 2 : 10.3 wt%). Grind the catalyst to 200 mesh (referring to passing through a 200 mesh sieve), weigh 200 grams of powder, add 400 mL of ammonia water with a concentration of 25 wt%, stir and soak at 60°C for 6 hours, and filter to obtain filtrate A and solid insoluble matter B. Dry the solid insoluble matter B at 110°C for 8 hours, then weigh 100 grams of powder, add 19 grams of alumina after roasting at 850°C, add 42 mL of 1.0 mol / L nitric acid solution, mix well, and extrude on an extruder to shape. Dry at 110°C for 8h, then calcined at 4...

Embodiment 2

[0061] (1) Preparation of catalyst precursor A, the steps are as follows:

[0062] The waste hydrodesulfurization catalyst of the fixed-bed residual oil hydrogenation industrial unit was selected, extracted with petroleum ether solvent for 40 hours, dried at 110°C for 8 hours, and roasted at 600°C for 3 hours to obtain the pretreated waste catalyst (containing MoO 3 : 11.0 wt%, NiO: 5.7 wt%, V 2 o 5 : 3.0 wt%, Al 2 o 3 : 69.0 wt%, SiO 2 : 10.3 wt%). Grind the catalyst to 200 mesh (referring to passing through a 200 mesh sieve), weigh 200 grams of powder, add 400 mL of ammonia water with a concentration of 25 wt%, stir and soak at 60°C for 6 hours, and filter to obtain filtrate A and solid insoluble matter B. Dry the solid insoluble matter B at 110°C for 8 hours, then weigh 100g of the powder, add 40g of alumina after roasting at 850°C, add 45mL of 1.0mol / L nitric acid solution, mix well, and extrude on the extruder. Dry at 110°C for 8h, then calcined at 400°C for 3h to p...

Embodiment 3

[0068] (1) Preparation of catalyst precursor A, the steps are as follows:

[0069] The waste hydrodesulfurization catalyst of the fixed-bed residual oil hydrogenation industrial unit was selected, extracted with petroleum ether solvent for 40 hours, dried at 110°C for 8 hours, and roasted at 600°C for 3 hours to obtain the pretreated waste catalyst (containing MoO 3 : 11.0 wt%, NiO: 5.7 wt%, V 2 o 5 : 3.0 wt%, Al 2 o 3 : 69.0 wt%, SiO 2 : 10.3 wt%). Grind the catalyst to 200 mesh (referring to passing through a 200 mesh sieve), weigh 200 grams of powder, add 400 mL of ammonia water with a concentration of 25 wt%, stir and soak at 60°C for 6 hours, and filter to obtain filtrate A and solid insoluble matter B. Dry the solid insoluble matter B at 110°C for 8 hours, then weigh 100g of powder, add 8g of alumina after roasting at 850°C, add 40mL of 1.0mol / L nitric acid solution, mix well, and then extrude on an extruder to shape. Dry at 110°C for 8h, then calcined at 400°C for...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention discloses a waste hydrogenation catalyst utilization method, which comprises: grinding a waste hydrogenation catalyst, soaking with ammonia water, adding alumina, a binder and an acid solution to the remaining solid, and carrying out mixing kneading molding; carrying out reducing treatment with hydrogen gas in a high pressure reaction kettle; adding a polyol and / or furfural solution to the high pressure reaction kettle, and carrying out a hydrogenation reaction; and drying the material obtained after the reaction until the surface is liquid-free, sequentially contacting an organic acid, ammonium or ammonia, and loading a heteropoly acid to produce the catalyst for ethylene preparation through ethanol dehydration. According to the present invention, with the method, the hydrogenation activity metal component and the carrier component in the waste hydrogenation catalyst are utilized, and the hydrogenation activity of the waste hydrogenation catalyst is completely utilized, such that the utilization rate of the waste catalyst is improved, the pollution problem of the waste catalyst is solved, and the obtained catalyst for ethylene preparation through ethanol dehydration has the excellent performance.

Description

technical field [0001] The invention relates to a method for utilizing a waste hydrogenation catalyst, in particular to a method for preparing a catalyst for ethanol dehydration to ethylene from a waste residue oil hydrogenation treatment catalyst. Background technique [0002] Every year, a large amount of spent catalysts that cannot be regenerated are produced all over the world, and hydrogenation catalysts account for a considerable proportion. Residue hydrotreating catalysts have a short service life, and cannot be regenerated after inactivation due to the deposition of a large amount of impurities such as metal Ni and V, especially in waste residue hydrodesulfurization catalysts, which contain molybdenum, Valuable metal oxides such as cobalt and nickel, if these waste catalysts are discarded or used as fillers in construction and other industries, it will not only cause waste of resources, but also cause certain pollution to the environment due to the loss of metals, es...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/18B01J27/188C07C11/04C07C1/24
CPCY02P20/52Y02P20/584B01J27/188C07C1/24C07C2527/188C07C11/04
Inventor 金浩孙素华朱慧红杨光
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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