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A catalyst for removing organic matter in nitrogen and its application in removing organic matter in nitrogen

A catalyst and organic technology, applied in the field of catalytic reaction, can solve the problems of low recovery value, unfavorable production and application, etc., and achieve the effect of good economic benefits

Active Publication Date: 2020-10-13
成都普瑞得科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if other methods reported in the prior art are used to recover organic matter, the recovery value is lower than the cost, which is obviously unfavorable for production and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The invention provides a method for preparing a catalyst for removing organic matter, comprising:

[0041] A) mixing the aluminum source and the titanium source in a mixed solvent, drying, and calcining to obtain a carrier; the calcination temperature is 600-1200°C; the calcination time is 3-5h;

[0042] B) impregnating the carrier in a palladium compound, drying, and calcining to obtain a catalyst; the calcining temperature is 400-800° C.; the calcining time is 4-5 hours.

[0043] The preparation method of the catalyst for removing organic matter provided by the invention firstly mixes the aluminum source and the titanium source in a mixed solvent.

[0044] The present invention does not limit the aluminum source and titanium source, as long as those skilled in the art are familiar with them. The aluminum source may include one or more of aluminum sulfate, aluminum nitrate, aluminum hydroxide and aluminum oxide; the titanium source includes isopropyl titanate, n-butyl...

Embodiment 1

[0089] According to the molar ratio of titanium to aluminum is 1:6, mix and dissolve the aluminum and titanium precursors in water and C1-C3 alcohol solution, ultrasonically disperse the mixture, let it stand at room temperature for 12 hours, and then dry it in an oven at 100°C , and then calcined at 600° C. for 5 h to obtain a carrier.

[0090] TiO 2 / Al 2 o 3 The carrier is impregnated in an aqueous solution of palladium chloride with a pH value of 4-5, allowed to stand at room temperature for 8 hours, dried in an oven at 90°C, and then calcined at 400°C for 5 hours to obtain a catalyst.

Embodiment 2

[0092] According to the molar ratio of titanium to aluminum is 1:6, mix and dissolve aluminum and titanium precursors in water and C1-C3 alcohol solution, ultrasonically disperse the mixture, let it stand at room temperature for 13 hours, and then put it in an oven at 110°C for drying , and then calcined at 1000° C. for 4 h to obtain a carrier.

[0093] TiO 2 / Al 2 o 3 The carrier is impregnated in an aqueous solution of palladium chloride with a pH value of 4-5, allowed to stand at room temperature for 9 hours, dried in an oven at 100° C., and calcined at 600° C. for 4.5 hours to obtain a catalyst.

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Abstract

The invention provides a catalyst for removing organic matters in nitrogen, which contains carriers and an active component, wherein the carriers include titanium dioxide and aluminum oxide; the active component is a palladium compound; and the organic matters include one or more out of carbon monoxide, cyclohexane, cyclohexanol and cyclohexanone. According to the catalyst, the starting reacting temperatures of cyclohexane, cyclohexanol and cyclohexanone can be effectively reduced, the organic matters in nitrogen of an adipic acid device can be removed, and nitrogen can be recycled, so that the catalyst has very high economic benefits.

Description

technical field [0001] The invention relates to the technical field of catalytic reaction, in particular to a catalyst for removing organic matter in nitrogen and its application in removing organic matter in nitrogen. Background technique [0002] In the chemical production industry, the by-products of many reactions can be recycled, and the desired products can be obtained through certain follow-up treatments. For example, in the adipic acid industry, the by-product is nitrogen with high concentration of organic matter, and the nitrogen in it can be recycled. Therefore, it is necessary to remove the high concentration of organic matter mixed in nitrogen, which can meet environmental protection requirements and can generate economic benefits. [0003] And in the process of recycling nitrogen, nitrogen will contain a certain amount of organic matter, such as carbon monoxide, cyclohexane, cyclohexanol and cyclohexanone, etc., in the prior art, the above-mentioned nitrogen co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/44B01J37/03B01J37/08B01J37/02B01D53/86B01D53/44
CPCB01D53/8687B01D2256/10B01J23/002B01J23/44B01J37/0201B01J37/033B01J37/082B01J37/088B01J2523/00B01J2523/31B01J2523/47B01J2523/824
Inventor 白钰麟谯映辉程大炜刘之阳
Owner 成都普瑞得科技有限公司
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