Review on dry reforming of methane, a potentially more environmentally-friendly approach to the increasing natural gas exploitation

Lavoie, Jean‐Michel

doi:10.3389/fchem.2014.00081

Cited by 402 publications

(276 citation statements)

References 53 publications

(72 reference statements)

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“…However, in those studies more beneficial conditions for high catalytic activity compared to this study were applied (lower WHSV, higher content of active sites, or usage of noble metals). Therefore, the activity of Ni/Mg.Al.550 in this study is outstanding at low temperature considering its low Ni content and the high WHSV (85 L/(gcat × h)) in comparison with other investigations [3,8,52]. Figure 9 displays the effect of temperature on the H2/CO ratio.…”

Section: Catalyst Performance In the Drm Reactionmentioning

confidence: 87%

Development of Active and Stable Low Nickel Content Catalysts for Dry Reforming of Methane

Armbruster

Atia

et al. 2017

Catalysts

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Methane dry reforming (DRM) was investigated over highly active Ni catalysts with low metal content (2.5 wt %) supported on Mg-Al mixed oxide. The aim was to minimize carbon deposition and metal sites agglomeration on the working catalyst which are known to cause catalyst deactivation. The solids were characterized using N 2 adsorption, X-ray diffraction, temperature-programmed reduction, X-ray photoelectron spectroscopy, and UV-Vis diffuse reflectance spectroscopy. The results showed that MgO-Al 2 O 3 solid solution phases are obtained when calcining Mg-Al hydrotalcite precursor in the temperature range of 550-800 • C. Such phases contribute to the high activity of catalysts with low Ni content even at low temperature (500 • C). Modifying the catalyst preparation with citric acid significantly slows the coking rate and reduces the size of large octahedrally coordinated NiO-like domains, which may easily agglomerate on the surface during DRM. The most effective Ni catalyst shows a stable DRM course over 60 h at high weight hourly space velocity with very low coke deposition. This is a promising result for considering such catalyst systems for further development of an industrial DRM technology.

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Section: Catalyst Performance In the Drm Reactionmentioning

confidence: 87%

Development of Active and Stable Low Nickel Content Catalysts for Dry Reforming of Methane

Armbruster

Atia

et al. 2017

Catalysts

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“…These reactors suffer from limited process temperatures causing high carbon formation rates. Many of the recent publications concentrate on this topic [6,16,17]. The higher process temperature in the described experiments could significantly reduce coke formation.…”

Section: Comparison With Literature Resultsmentioning

confidence: 99%

Dry Reforming of Methane Using a Nickel Membrane Reactor

2017

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Dry reforming is a very interesting process for synthesis gas generation from CH 4 and CO 2 but suffers from low hydrogen yields due to the reverse water-gas shift reaction (WGS). For this reason, membranes are often used for hydrogen separation, which in turn leads to coke formation at the process temperatures suitable for the membranes. To avoid these problems, this work shows the possibility of using nickel self-supported membranes for hydrogen separation at a temperature of 800 • C. The higher temperature effectively suppresses coke formation. The paper features the analysis of the dry reforming reaction in a nickel membrane reactor without additional catalyst. The measurement campaign targeted coke formation and conversion of the methane feedstock. The nickel approximately 50% without hydrogen separation. The hydrogen removal led to an increase in methane conversion to 60-90%.

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“…Only in the last year, an increase of 1% in natural gas consumption has been observed [1]. This trend is predicted to develop even faster, since natural gas is the cheapest fossil fuel and possess the highest H/C ratio, contributing to lower CO 2 emissions with respect to other fossil fuels [2]. Nevertheless, CO 2 is still emitted in the energetic utilization of natural gas, e.g., 6.9 Gt of CO 2 were emitted only in 2013, accounting for ca.…”

Section: Introductionmentioning

confidence: 99%

A Short Review on the Catalytic Activity of Hydrotalcite-Derived Materials for Dry Reforming of Methane

et al. 2017

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Nickel-containing hydrotalcite-derived materials have been recently proposed as promising materials for methane dry reforming (DRM). Based on a literature review and on the experience of the authors, this review focuses on presenting past and recent achievements on increasing activity and stability of hydrotalcite-based materials for DRM. The use of different NiMgAl and NiAl hydrotalcite (HT) precursors, various methods for nickel introduction into HT structure, calcination conditions and promoters are discussed. HT-derived materials containing nickel generally exhibit high activity in DRM; however, the problem of preventing catalyst deactivation by coking, especially below 700 • C, is still an open question. The proposed solutions in the literature include: catalyst regeneration either in oxygen atmosphere or via hydrogasification; or application of various promoters, such as Zr, Ce or La, which was proven to enhance catalytic stability.

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Review on dry reforming of methane, a potentially more environmentally-friendly approach to the increasing natural gas exploitation

Cited by 402 publications

References 53 publications

Development of Active and Stable Low Nickel Content Catalysts for Dry Reforming of Methane

Development of Active and Stable Low Nickel Content Catalysts for Dry Reforming of Methane

Dry Reforming of Methane Using a Nickel Membrane Reactor

A Short Review on the Catalytic Activity of Hydrotalcite-Derived Materials for Dry Reforming of Methane

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