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Nickel-based catalyst and its preparation method and application

A nickel-based catalyst and hydrogenation reaction technology, applied in the field of catalysis, to achieve the effects of strong anti-poisoning ability, reduced separation pressure, and reduced energy consumption

Active Publication Date: 2020-03-31
SHANGHAI XUNKAI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the catalysts for the hydrogenation of acetone to prepare isopropanol are in the laboratory research stage, and there are basically no catalysts for the hydrogenation of acetone that can be selected in industry.

Method used

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  • Nickel-based catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Accurately weigh 400 grams of nickel with a purity greater than 99%, 500 grams of aluminum with a purity greater than 99%, 50 grams of copper with a purity greater than 99%, 40 grams of iron with a purity greater than 99%, and 10 grams of manganese with a purity greater than 99%, and mix well Finally, the metal mixture is obtained, and the metal mixture is melted in an intermediate frequency electric furnace at 1650 ° C for 0.5 hours, poured into a mold, cooled by quenching, crushed by a jaw crusher, and sieved to obtain a particle size of 3 -6mm alloy particles.

[0033] Then, get 200g of the alloy particles obtained above, and put it in a quartz glass tube with an inner diameter of 60mm, and put a concentration of 1.0wt% KOH solution (the conductivity of water used to prepare the KOH solution is 50 μs / cm) at a space velocity of 12h -1 The speed flows from the bottom of the quartz glass tube through the bed of alloy particles and then flows out from the top. The bed t...

Embodiment 2

[0035] Accurately weigh 420 grams of nickel with a purity greater than 99%, 480 grams of aluminum with a purity greater than 99%, 60 grams of copper with a purity greater than 99%, 30 grams of iron with a purity greater than 99%, and 10 grams of manganese with a purity greater than 99%, and mix well Finally, the metal mixture is obtained, and the metal mixture is melted in an intermediate frequency electric furnace at 1650°C for 0.4 hours, poured into a mold, cooled in a stepwise manner, crushed by a hammer crusher, and sieved to obtain a particle size of 3- 6mm alloy particles.

[0036] Then, get 200g of the alloy particles obtained above, place the inner diameter in a quartz glass tube of 60mm, and put the concentration of 0.8wt% KOH solution (the conductivity of water used to prepare the KOH solution is 100μs / cm) at a space velocity of 15h -1 The speed flows from the bottom of the quartz glass tube through the bed of alloy particles and then flows out from the top. The bed...

Embodiment 3

[0038] Accurately weigh 400 grams of nickel with a purity greater than 99%, 550 grams of aluminum with a purity greater than 99%, 30 grams of copper with a purity greater than 99%, 10 grams of iron with a purity greater than 99%, and 10 grams of manganese with a purity greater than 99%, and mix well Finally, the metal mixture is obtained, and the metal mixture is melted in an intermediate frequency electric furnace at 1550°C for 0.3 hours, poured into a mold, cooled in a stepwise manner, and passed through a jaw crusher and a ball mill to obtain an alloy with a particle size of less than 200 mesh powder, then add water, pseudo-boehmite and binder, extrude into strips, dry and roast to obtain rod-shaped alloy particles with a diameter of 3mm and a length of 2-6mm.

[0039] Then, 200 g of the metal alloy particles obtained above are placed in a quartz glass tube with an internal diameter of 60 mm, and the concentration is 1.2 wt % KOH solution (the conductivity of water used to p...

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Abstract

The invention discloses a nickel-based catalyst for catalyzing the hydrogenation reaction of acetone to prepare isopropanol. Based on the weight percentage of the nickel-based catalyst, it includes 35-60% nickel, 20-60% aluminum, 1-10 % copper, 0.5‑10% iron, and 0.5‑5% manganese. The invention also discloses a preparation method of the nickel-based catalyst and its application in a fixed-bed reactor for acetone hydrogenation reaction in an isopropyl alcohol-acetone-hydrogen chemical heat pump. Compared with the existing technology, the nickel-based catalyst of the present invention has high mechanical strength, high acetone conversion rate, high isopropyl alcohol selectivity, strong anti-poisoning ability, simple production process, easy industrialization, good application prospects and huge economic potential. benefit.

Description

technical field [0001] The present invention relates to the field of catalysis and energy utilization, in particular to a nickel-based catalyst that catalyzes the hydrogenation of acetone to prepare isopropanol and a preparation method thereof, as well as a nickel-based catalyst used in the hydrogenation of acetone in an isopropanol-acetone-hydrogen chemical heat pump. application. [0002] technical background [0003] At present, my country's energy utilization efficiency is low, and there is still a lot of room for improvement compared with developed countries. Waste heat recovery and utilization, especially low-temperature waste heat recovery, has become an important means to improve energy utilization efficiency and solve energy crises. Low-temperature waste heat has low quality and is difficult to use directly, and most of it is discharged, resulting in huge energy waste. The best way to use low-temperature waste heat is to raise its temperature so that it can be used....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889B01J35/10B01J35/02C07C29/145C07C31/10B01J35/00
CPCC07C29/145B01J23/8892B01J35/50B01J35/643B01J35/651B01J35/647C07C31/10
Inventor 国海光孙兵
Owner SHANGHAI XUNKAI NEW MATERIAL TECH
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