Hydrogen production from methanol steam reforming catalyzed by Fe modified Cu supported on attapulgite clay

Cao, Lei; Lu, Mohong; Gong, Li; Zhang, Shiyuan

doi:10.1007/s11144-018-1493-y

Cited by 17 publications

(2 citation statements)

References 61 publications

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“…Such naturally created channels may provide additional benefits as catalyst support due to the probably better dispersion and deposition of metal catalyst atoms or clusters. In fact, it has already been used as support for various nanoparticles catalyzing the C-C coupling reactions [51], the glycerol steam reforming reaction [40,[52][53][54], the CO oxidation reaction [55], and the methanol steam reforming reaction [56,57]. These properties and applications clearly suggest that ATP has a superior surface-absorbing capability compared with other minerals, making it very attractive as a potential catalyst support for ammonia decomposition.…”

Section: Introductionmentioning

confidence: 99%

Ru/Attapulgite as an Efficient and Low-Cost Ammonia Decomposition Catalyst

Teng,

Sang,

Chen

et al. 2024

Catalysts

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On-site hydrogen generation from ammonia decomposition is a promising technology to address the challenges of direct transportation and storage of hydrogen. The main problems with the existing support materials for ammonia decomposition catalysts are their high cost and time-consuming preparation process. In this work, ammonia decomposition catalysts consisting of in situ-formed nano-Ru particles supported on a naturally abundant mineral fiber, attapulgite (ATP), were proposed and studied. Also, 1 wt.% Ru was uniformly dispersed and anchored onto the surface of ATP fibers via the chemical method. We found that the calcination temperatures of the ATP support before the deposition of Ru resulted in little difference in catalytic performance, while the calcination temperatures of the 1Ru/ATP precursor were found to significantly influence the catalytic performance. The prepared 1 wt.% Ru/ATP catalyst (1Ru/ATP) without calcination achieved an ammonia conversion efficiency of 51% at 500 °C and nearly 100% at 600 °C, with the flow rate of NH3 being 10 sccm (standard cubic centimeter per minute). A 150 h continuous test at 600 °C showed that the 1Ru/ATP catalyst exhibited good stability with a degradation rate of about 0.01% h−1. The 1Ru/ATP catalyst was integrated with proton ceramic fuel cells (PCFCs). We reported that PCFCs at 650 °C offered 433 mW cm−2 under H2 fuel and 398 mW cm−2 under cracked NH3 fuel. The overall results suggest low-level Ru-loaded ATP could be an attractive, low-cost, and efficient ammonia decomposition catalyst for hydrogen production.

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Section: Introductionmentioning

confidence: 99%

Ru/Attapulgite as an Efficient and Low-Cost Ammonia Decomposition Catalyst

Teng,

Sang,

Chen

et al. 2024

Catalysts

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“…Current trends on the production of hydrogen include processes involving decomposition of ammonia, and steam reforming of ethanol and glycerol (Lytkina et al, 2019a;Saidi and Moradi, 2020;Itoh et al, 2021). In recent years, methanol steam reforming using innovative reactor configurations has also become an emerging field of research (Shtyka et al, 2018;Lytkina et al, 2019a;Lytkina et al, 2019b;Cai et al, 2019;Cao et al, 2019;Fasanya et al, 2019;Kamyar et al, 2019;…”

Section: Introductionmentioning

confidence: 99%

Hydrogen production using advanced reactors by steam methane reforming: A review

Ganguli

Bhatt

2023

Front. Therm. Eng.

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The present review focuses on the current progress on harnessing the potential of hydrogen production by Methane Steam Reforming (MSR). First, based on the prominent literature in last few years, the overall research efforts of hydrogen production using different feed stocks like ethanol, ammonia, glycerol, methanol and methane is presented. The presented data is based on reactor type, reactor operating conditions, catalyst used and yield of hydrogen to provide a general overview. Then, the most widely used process [steam methane reforming (SMR)/methane steam reforming (MSR)] are discussed. Major advanced reactors, the membrane reactors, Sorption Enhanced methane steam reforming reactors and micro-reactors are evaluated. The evaluation has been done based on parameters like residence time, surface area, scale-up, coke formation, conversion, space velocity and yield of hydrogen. The kinetic models available in recently published literature for each of these reactors have been presented with the rate constants and other parameters. The mechanism of coke formation and the rate expressions for the same have also been presented. While membrane reactors and sorption enhanced reactors have lot of advantages in terms of process intensification scale-up to industrial scale is still a challenge due to factors like membrane stability and fouling (in membrane reactors), decrease in yield with increasing WHSV (in case of Sorption Enhanced Reactors). Micro-reactors pose a higher potential in terms of higher yield and very low residence time in seconds though the volumes might be substantially lower than present industrial scale conventional reactors.

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