Preparation method and application of hydrogenation deoxygenation catalyst for oxygen-containing organic compound

Abstract

The invention relates to a hydrogenation deoxygenation catalyst for the deoxygenation reduction of an oxygen-containing organic compound. The catalyst is spherical, comprises elements such as P, B, F, K, Zn, Zr, Mo, Fe, Cu, Ni and the like, has the diameter of 2 to 4mm, the specific surface area of 100 to 280m<2> / g, the pore volume of 0.45 to 0.85ml / g, the pore size distribution of 12 to 30nm, and the crushing strength of 180 to 320N / cm, and can be used for the common dynamic continuous hydrogenation reaction process and intermittent hydrogenation reaction; reaction materials can be gas-phase or liquid-phase materials; and operation process conditions are that: hydrogen partial pressure is 1.5 to 4.5MPa, the temperature is 200 to 450 DEG C, the space velocity is 0.5 to 3.5v / v, and the ratio of hydrogen to oil is 100 to 600h<-1>. Product yield is over 96 percent when the catalyst is used for hydrogenation deoxygenation reaction, and the catalyst has high reaction activity, stability and selectivity.

Description

technical field [0001] The invention relates to the preparation of an oxygen-containing organic compound hydrogenation deoxygenation catalyst by using activated aluminum hydroxide and its application, and also relates to the process engineering of the oxygen-containing organic compound hydrogenation deoxygenation. Background technique [0002] The efficient and reasonable use of fossil resources has always been a research hotspot in the energy industry. About 70% of my country's energy consumption depends on coal and 30% comes from oil. However, there are many negative effects in the use of coal, and the overall use technology level at home and abroad needs to be further improved. The most important problem is that coal emits a lot of pollutants in the process of use. How to reduce emissions is a common issue faced by mankind. Coal can be transformed into high value-added chemical products through direct liquefaction and a series of processing methods. raw materials, but this ...

AI Technical Summary

Problems solved by technology

These two methods are intermittent production, complex production operations, small processing capacity, low conversion rate of raw materials and product purity, and large loss of catalyst used for reduction

[0004] A large amount of Ni is loaded on the activated carbon carrier. The activated carbon carrier has intrinsic reduction activity and can reduce NiO to metal Ni. However, activated carbon has high-temperature oxidation activity. When preparing this type of catalyst, it must be reduced under an inert atmosphere such as nitrogen. The process conditions are extremely harsh, the controllability of the production process is not strong, and the repeatability of the catalyst quality is very poor

The crushing strength of the activated carbon carrier is low, and it is easy to be crushed and pulverized during the reaction process. On the one hand, it increases the consumption of the catalyst, and on the other hand, it increases the workload of the separation process of the target product.

The active metal has a weak binding force with the surface of the substrate, and is easily oxidized and loses its activity.

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