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Alkali-containing catalyst formulations for low and medium temperature hydrogen generation

A catalyst, hydrogen-rich technology, applied in the field of and unsupported catalyst, hydrogen-rich syngas, aqueous syngas mixture

Inactive Publication Date: 2006-02-01
HONDA MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This methanation activity limits the application of metals such as Co, Ru, Pd, Rh, and Ni as water-gas shift catalysts

Method used

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  • Alkali-containing catalyst formulations for low and medium temperature hydrogen generation
  • Alkali-containing catalyst formulations for low and medium temperature hydrogen generation
  • Alkali-containing catalyst formulations for low and medium temperature hydrogen generation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0159] 4" wafers were pre-coated with 15 different carriers by slurry dispensing into masterbatches. Carrier deposition was performed with the following carriers: SiO 2 (PQ-MA 1620), WSi 2 99.5%, SiO 2 (80:20 SiO 2 Mixture Kieselgur: BASF), SiO 2 (Aerosil 200), SiO 2 (KA160), SiO 2 (SS5131), SiO 2 (Condea Siralox 5 / 150), SiO 2 (Norton XS16080), SiO 2 (Engelhard Siliperl AF125), SiO 2 LSA, γ-Al 2 o 3Catalox SBa-150, V-doped sol-gel zirconia (Norton XZ16052) PtCe masterbatches 1 and 2. Each slurry was prepared from 1 g in 4 mL of 50:50 ethylene glycol ("EG"):H 2 The carrier composition of the O mixture, except that by adding 1 g carrier to 8 mL EG / H 2 SiO prepared in O, 50:50 2 PQ-MA 1620 and by adding 1.5g to 4mLEG / H 2 ZrO prepared in O / methyl ether ("MEO"), 32.5:30:37.5 2 XZ16052.

[0160] Each carrier slurry was dispensed by liquid from a microtiter plate onto a vertical column of 15 spots on the wafer. After completing the dispensing steps for columns 1-...

Embodiment 2

[0167] γ-Al 2 o 3 (Catalox SBa-150) carrier dispensed 3 μL (1 g γ-Al 2 o 3 in 4 mL of 50:50EG / H 2 O) to 15 x 15 squares of cells on the wafer to pre-coat a 4" wafer. The wafer was then oven dried at 70°C for 12 minutes.

[0168] By adding Pt(NH 3 ) 2 (NO 2 ) 2 (2.5% Pt) stock solutions were spotted into the corresponding first row / last column positions to synthesize internal standards. By placing Na on the wafer 2 Pt(OH) 6 The stock solution (from powder, 1% Pt) was dispensed into rows C1-C5 (2.5 μL per well) to implant a uniform layer of Pt into the wafer.

[0169] The following metal gradients were then injected from top to bottom into rows C6-C15 by dispensing the microtiter plate from the corresponding reservoir Cavro and diluting with distilled water: ZrO(NO 3 ) 2 , La(NO 3 ) 3 , Y(NO 3 ) 3 , Ce(NO 3 ) 3 、H 2 MoO 4 , Fe(NO 3 ) 3 , Co(NO 3 ) 2 , ZrO(OAc) 2 , Mn(NO 3 ) 2 and KRuO 4 . The transfer microtiter plate pattern was then replicated to t...

Embodiment 3

[0176] Slurry distribution through catalyst powder with 5 commercial catalysts (supplied by Alfa Aesar and Aldrich (commercial catalysts used: Ir 1% / γ-Al 2 o 3 (reduced), Ir 5% / CaCO 3 (reduced), Pd 0.5% / γ-Al 2 o 3 (reduced), Pd 5% / BaCO 3 (reduced), Ru 5% / γ-Al 2 o 3 (reduced), each from 4mL EG / H 2 1.5 g catalyst in O / MEO 32.5:30:37.5 for slurry preparation). Each carrier solution was dispensed into 3 different rows at 5 row intervals. The wafer was then oven dried at 70°C for 12 minutes. By adding Pt(NH 3 ) 2 (NO 2 ) 2 Stock solutions (2.5% Pt) were spotted into the corresponding first row / last column positions to synthesize internal standards. 2 rows of NaOH (1M) and 1 row of Pt(NH 3 ) 2 (NO 2 ) 2 A 15-point doping gradient of (2%) was implanted into the wafer, and the microtiter plate pattern was replicated to the wafer (2.5 μL dispensing volume per well, 5 replicates per row, resulting in 3 5×15 rectangles on the wafer).

[0177] The wafer was dried at room...

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Abstract

The invention is directed toward methods of using alkali-containing catalysts for generation of hydrogen-rich gas at temperatures of less than about 260 DEG C. A WGS catalyst of the invention may have the following composition: a) at least one of Pt, Ru, their oxides and mixtures thereof; b) Na, its oxides or mixtures thereof; and optionally, c) Li, its oxides and mixtures thereof. The catalysts may be supported on a variety of catalyst support materials. The invention is also directed toward catalysts that exhibit both high activity and selectivity to hydrogen generation and carbon monoxide oxidation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 60 / 434,707, filed December 20, 2002, which is hereby incorporated by reference in its entirety. This application is also incorporated by reference into U.S. Patent Application No. ______ of Hagemeyer et al. (Attorney Docket No. 7080-005-01), filed on the same date as this application, and entitled "Used for Low and Moderate Temperature Hydrogen Resulting catalyst formulations containing alkali metals". Background of the invention [0003] technical field [0004] The present invention relates to methods and catalysts for the production of hydrogen-rich gases at temperatures below 260°C from gas mixtures containing carbon monoxide and water, such as aqueous synthesis gas mixtures. More specifically, the present invention includes methods for producing hydrogen-rich gases at temperatures below 260°C using alkali metal-containing catalysts. The catalyst ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/16B01J23/58B01J23/656B01J37/02C40B30/08C40B40/18C40B60/14
CPCB01J2219/00364B01J2219/00691C40B40/18C01B2203/107C01B3/16B01J23/58B01J2219/00745C01B2203/0283B01J37/0205C40B30/08C01B2203/1064C01B2203/1041B01J2219/00747B01J2219/00527C40B60/14B01J23/6567Y02P20/52Y02P20/141
Inventor 阿尔佛雷德·哈格迈尔雷蒙德·F·卡尔哈特卡琳·亚卡托安德烈亚斯·莱西克克里斯多佛·詹姆士·布鲁克斯
Owner HONDA MOTOR CO LTD