Catalyst for hydrogen production by steam high-temperature reforming of methanol and preparation method and application of catalyst

A reforming hydrogen production and catalyst technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, heterogeneous catalyst chemical elements, etc., can solve the unfavorable development needs, large Cr consumption, Non-environmental protection and other issues, to achieve the effects of environmental protection, low consumption, and cost savings

Active Publication Date: 2018-02-02
四川蜀泰化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, noble metal catalysts have attracted much attention due to their high activity and stability, but their high prices are still difficult to meet the needs of the current hydrogen production market; The consumption is large. Even if the impregnation method is adopted, the Cr content is still maintained at about 10%. The use of heavy metal Cr will have an important impact on the environment and the personal safety of the operator. It is not environmentally friendly and is not conducive to the needs of current social development.

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  • Catalyst for hydrogen production by steam high-temperature reforming of methanol and preparation method and application of catalyst
  • Catalyst for hydrogen production by steam high-temperature reforming of methanol and preparation method and application of catalyst
  • Catalyst for hydrogen production by steam high-temperature reforming of methanol and preparation method and application of catalyst

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Effect test

Embodiment 1

[0021] A kind of catalyst for producing hydrogen by methanol steam reforming at high temperature described in this embodiment, its preparation method is:

[0022] (1) Mix aluminum hydroxide, titanium dioxide and cellulose with a mass ratio of 85:6:1.5 and ball-mill, add water after ball-milling, mix evenly and granulate, then prepare a spherical carrier, and cure the spherical carrier with steam until the strength reaches 120N / pcs or more, calcined at 500 °C for 2 h to obtain TiO 2 / Al 2 O 3 carrier;

[0023] (2) prepare a cerium nitrate solution according to the final oxide content, the total concentration of the mixed solution of the metal nitrate salt is 2mol / L, and the TiO described in step (1) is mixed under the condition of 70°C. 2 / Al 2 O 3 The carrier is immersed in the metal nitrate solution, and the immersion time is controlled at 45 minutes. After the immersion is completed, it is dried at 160 °C for 4 hours, then calcined at 450 °C for 6 hours and then placed...

Embodiment 2

[0028]A kind of catalyst for producing hydrogen by methanol steam reforming at high temperature described in this embodiment, its preparation method is:

[0029] (1) Mix aluminum hydroxide, titanium dioxide and cellulose with a mass ratio of 90:8:3 and ball-mill, add water after ball-milling and mix evenly and granulate, then prepare a spherical carrier, and cure the spherical carrier with steam until the strength reaches 120N / pcs or more, calcined at 700 °C for 6 h to obtain TiO 2 / Al 2 O 3 carrier;

[0030] (2) The cerium nitrate solution is prepared according to the final oxide content, the total concentration of the mixed solution of metal nitrate salt is 1.5mol / L, and the TiO2 described in step (1) is mixed at 50°C. 2 / Al 2 O 3 The carrier is immersed in the metal nitrate solution, and the immersion time is controlled at 30 minutes. After the immersion is completed, the carrier is dried at 120 °C for 2 hours, then calcined at 400 °C for 3 hours and then placed to co...

Embodiment 3

[0035] A kind of catalyst for producing hydrogen by methanol steam reforming at high temperature described in this embodiment, its preparation method is:

[0036] (1) Mix aluminum hydroxide, titanium dioxide and cellulose with a mass ratio of 88:7:2 and ball-mill, add water after ball-milling and mix evenly and granulate, then prepare a spherical carrier, and cure the spherical carrier with steam until the strength reaches 120N / pcs or more, then calcined at 600 °C for 4 h to obtain TiO 2 / Al 2 O 3 carrier;

[0037] (2) The cerium nitrate solution is prepared according to the final oxide content, the total concentration of the metal nitrate mixed solution is 3 mol / L, and the TiO described in step (1) is mixed at 90° C. 2 / Al 2 O 3 The carrier is immersed in the metal nitrate solution, and the immersion time is controlled at 60 minutes. After the immersion is completed, it is dried at 120-200 °C for 2-6 hours, and then calcined at 550 °C for 10 hours and then placed to coo...

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Abstract

The invention discloses a catalyst for hydrogen production by steam high-temperature reforming of methanol and a preparation method and application of the catalyst. The catalyst takes TiO2/Al2O3 as acarrier, CeO2 and/or ZrO2 loaded on the carrier as a promoter and a ZnO-NiO bi-active center dispersed on the carrier as a catalyst active component, wherein the mass of the catalyst active componentaccounts for 15-30% of the total mass of the catalyst; and in the ZnO-NiO bi-active center, the mass ratio of ZnO to NiO is (70-90):(10-30), and the mass ratio of the promoter to the carrier is (5-15):(85-95). A noble metal is not taken as the raw material, shortcomings of a traditional Zn-Cr catalyst can be overcome, the catalyst can be applied to the high-temperature range of 350-550 DEG C and has high activity and selectivity and stable catalytic performance.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a catalyst for producing hydrogen by high-temperature reforming of methanol steam, a preparation method and an application. Background technique [0002] Methanol has the advantages of cheap and easy availability, high energy density, low carbon content, and convenient transportation and storage. There are three types of reforming and partial oxidation reforming. Among them, steam reforming of methanol to produce hydrogen is the reaction with the highest hydrogen content in the reformed gas, and has the advantages of low cost, mild conditions, and easy separation of product components. [0003] The core of the hydrogen production technology from methanol steam reforming lies in the catalyst. The relevant catalysts have been extensively and deeply studied. Among them, copper-based catalysts are mostly studied. However, copper-based catalysts are mainly suitable for low temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J23/83C01B3/32
CPCB01J23/002B01J23/80B01J23/83B01J35/023B01J35/08B01J35/1004B01J2523/00C01B3/326B01J2523/31B01J2523/47B01J2523/48B01J2523/3712B01J2523/27B01J2523/847
Inventor 严会成李华波许云波刘阳欧军
Owner 四川蜀泰化工科技有限公司
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