Carrier for organic compound dehydrogenation catalyst

A technology for dehydrogenation catalysts and organics, which is applied in metal/metal oxide/metal hydroxide catalysts, organic chemistry, physical/chemical process catalysts, etc., and can solve problems such as large floor space, hidden safety hazards, and hidden traffic safety hazards. , to achieve the effect of improving dehydrogenation activity and/or selectivity

Active Publication Date: 2020-11-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Hydrogen is directly transported from the production site to the hydrogen refueling station through high-pressure gaseous state. The transportation cost is relatively high, and there are certa

Method used

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  • Carrier for organic compound dehydrogenation catalyst
  • Carrier for organic compound dehydrogenation catalyst
  • Carrier for organic compound dehydrogenation catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Calcining SB powder at 500℃ for 4h to obtain γ-Al 2 o 3 , the γ-Al 2 o 3 The specific surface area is 176m 2 / g, the pore volume is 0.48ml / g.

[0060] Take the above γ-Al 2 o 3 500g is placed in the fluidized reactor (the diameter of the reactor is 10cm, and the height is 40cm), titanium tetrachloride is placed in a constant temperature bath at 20°C, and nitrogen (temperature is 25°C) passes through the tetrachloride at a flow rate of 10L / min. Titanium then enters the fluidized reactor from the bottom of the fluidized reactor. After fluidizing for 1 hour, stop passing the nitrogen gas through the titanium tetrachloride bath; The deionized water in the reactor enters the fluidized reactor from the bottom of the reactor, and is fluidized for 4 hours for hydrolysis to obtain a hydrolyzed carrier. The hydrolyzed carrier was calcined in an air atmosphere at 550° C. for 4 hours to obtain a carrier composition, which was named M-1. The properties of the carrier are sh...

Embodiment 2～ Embodiment 8

[0062] The preparation method is the same as carrier preparation example 1, the difference lies in the time for nitrogen to carry titanium tetrachloride into the fluidized bed, and the hydrolysis time for nitrogen to pass through deionized water. The specific values ​​and carrier properties are shown in Table 1.

Embodiment 9～ Embodiment 11

[0064] The preparation method is the same as in Example 1, except that the nitrogen gas first passes through the titanium tetrachloride, and then passes through the zirconium tetrachloride steam generator—the temperature is 300°C. See Table 1 for specific values ​​and carrier properties.

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Abstract

The invention relates to a carrier for an organic compound dehydrogenation catalyst. The carrier comprises aluminum oxide and modified metal oxide, wherein the modified metal oxide is titanium oxide and/or zirconium oxide; the value of eta of the modified metal oxide is less than 0.3, the value of theta of the modified metal oxide is greater than or equal to 5, the value of eta is equal to a ratioof the weight percentage of a crystalline phase modified metal oxide in the carrier to the chemical composition weight percentage of the modified metal oxide in the carrier, and the value of theta isequal to a ratio of the weight percentage of the modified metal oxide on the surface of the carrier to the chemical composition weight percentage of the modified metal oxide in the carrier; and the titanium oxide is calculated in terms of TiO2, and the zirconium oxide is calculated in terms of ZrO2. The carrier of the invention is applicable to a catalyst for preparing hydrogen through dehydrogenation of organic liquid to improve the activity of the catalyst, and can also be applied to catalysts for other reactions.

Description

technical field [0001] The invention relates to a catalyst carrier for dehydrogenation of organic compounds and a preparation method thereof. Background technique [0002] As a renewable energy source, hydrogen is not only energy efficient, but also produces almost no waste. The development of hydrogen energy is expected to become an important way to improve energy efficiency, reduce oil consumption, improve the ecological environment, and ensure energy security. The development of sustainable and efficient large-scale hydrogen production technology has become an urgent need in the era of hydrogen energy. [0003] Hydrogen exists in gaseous form under normal conditions, and is flammable, explosive, and easy to diffuse, so people should give priority to the safety, efficiency, and no leakage loss of hydrogen storage and transportation in practical applications, which gives storage and Transport poses great difficulties. Therefore, the utilization of hydrogen energy needs to...

Claims

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Application Information

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IPC IPC(8): B01J21/06B01J23/42B01J23/44B01J23/46B01J23/62B01J23/656B01J23/89B01J35/10C01B3/26C07C5/367C07C15/06
CPCB01J21/063B01J21/066B01J35/1019B01J35/1038C01B3/26C07C5/367C01B2203/1252B01J23/892C01B2203/1082B01J23/835B01J27/1853B01J23/80B01J23/755C07C15/06Y02P90/45
Inventor 林伟杨雪宋烨王磊刘俊孙敏宋海涛
Owner CHINA PETROLEUM & CHEM CORP
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