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Catalyst for autothermal reformation of gasoline or diesel oil, preparation and application

A technology of autothermal reforming and catalyst, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc. The overall reaction performance of catalyst life, poor catalyst mechanical strength and other issues, to achieve the effect of strong resistance to sulfur poisoning, high activity/selectivity, and good stability

Inactive Publication Date: 2007-08-01
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst disclosed in Chinese patent (Application No.: 200510111783.1) has good catalytic activity and selectivity for the reforming hydrogen production reaction of C1-C16 hydrocarbons in the presence of sulfur, but the rare earth oxide as the carrier The catalyst has problems such as difficult molding and poor mechanical strength of the catalyst; the catalyst disclosed in the Chinese patent (Application No.: 200610024934.4) has a good performance in the reforming hydrogen production reaction of C1-C16 hydrocarbons under the condition of the presence of 300 ppm sulfur. Catalytic activity and selectivity, but the embodiment mainly provides the reaction results on model compounds such as isooctane, hexadecane and methane, only the result of 50h on the investigation of commercial gasoline autothermal reforming reaction performance, and there is no Effects of commercial diesel autothermal reforming reaction performance, especially catalyst life

Method used

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  • Catalyst for autothermal reformation of gasoline or diesel oil, preparation and application
  • Catalyst for autothermal reformation of gasoline or diesel oil, preparation and application
  • Catalyst for autothermal reformation of gasoline or diesel oil, preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of CeO by incipient wetness impregnation 2 8% CeO 2 -Al 2 o 3 Composite oxide carrier.

[0037] Weigh 2.02 grams of Ce(NO 3 ) 3 ·6H 2 O is dissolved in 15 milliliters of deionized water to form a solution, and the above solution is added dropwise to 9.2 grams of the specific surface area of ​​157m 2 / g of alumina to prepare modified oxides in incipient wetness, after drying, calcination in air at 450°C for 2 hours to obtain CeO 2 8 wt% CeO 2 -Al 2 o 3 Composite oxide support, denoted as S-1.

Embodiment 2

[0039] Preparation of CeO by incipient wetness impregnation 2 -Gd 2 o 3 -Al 2 o 3 Composite oxide carrier, using first loaded Gd 2 o 3 reload CeO 2 two-step impregnation method.

[0040] first step:

[0041] Weigh 0.4Og Gd(NO 3 ) 3 ·6H 2 O is dissolved in 15 milliliters of deionized water to form a solution, and the above solution is added dropwise to 9.84 grams of the specific surface area of ​​157m 2 / g of alumina prepared on the incipient wetness of the modified oxide, after drying, 450 ° C in the air for 2 hours to obtain Gd 2 o 3 1.6 wt% Gd 2 o 3 -Al 2 o 3 composite oxides.

[0042] Step two:

[0043] Weigh 2.02 grams of Ce(NO 3 ) 3 ·6H 2 O was dissolved in 12 milliliters of deionized water to form a solution, and the above solution was added dropwise to 9.2 grams of the composite oxide prepared in the previous step, dried and roasted in air at 400°C for 2 hours to obtain CeO 2 -Gd 2 o 3 -Al 2 o 3 Composite oxides, where CeO 2 Content is 8wt%, G...

Embodiment 3-5

[0045] Change Gd(NO 3 ) 3 ·6H 2 The consumption of O, other conditions are with embodiment 2, prepares Gd 2 o 3 Contents of 0.4wt%, 0.8wt%, 4wt% CeO 2 -Gd 2 o 3 -Al 2 o 3 Composite oxides are denoted as S-3, S-4 and S-5.

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Abstract

The invention involves an accelerant with high activity / selectivity, good stability and strong resistance to sulfur poisoning which is used for gasoline self-heating reforming hydrogen production process and its preparation and usage, and it belongs to energy resource and oil chemical industry catalysis material and its production technology field. The load-type metal catalyst provided by the invention is a rare earth oxides modified loading metal catalyst, the content of the rare earth oxides in the catalyst is 0.4%-20%, the content of active metal component is 0.3%-5%, the content of the carrier is 75%-99.3%. Compared with the prior technology, the hydrogenation catalyst need not add additional manufacturing equipment and has performance of high activity / selectivity, good stability and strong resistance-sulfur poisoning. The catalyst is easy to manufacture, cost of manufacturing is small and cost is very low, the prepared catalysts can meet the strength requirement of actual process to the catalyst, etc.

Description

technical field [0001] The present invention relates to gasoline / diesel autothermal reforming hydrogen production technology, and in particular provides a catalyst with high activity / selectivity, good stability and strong resistance to sulfur poisoning for the gasoline autothermal reforming hydrogen production process, and provides The preparation method of the hydrogen production catalyst belongs to the technical field of energy and petrochemical catalytic materials and their manufacture. technical background [0002] h 2 -O 2 Proton exchange membrane fuel cell (PEMFC) is a high-efficiency and environmentally friendly technology, with the advantages of no pollutant emissions, high efficiency (40-60%), no noise, fast start-up, etc. It is widely used in electric vehicles, small mobile electronic devices, homes or hospitals There are huge market prospects in terms of backup power and so on. Since hydrogen storage technology is still far away from practical requirements, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/63B01J37/025C01B3/38
CPCY02P20/52
Inventor 薛青松高立达路勇陈金春何鸣元
Owner EAST CHINA NORMAL UNIV
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