Sorption-enhanced reaction process using advanced Ca-based sorbents for low-carbon hydrogen production

Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions

“…However, methane conversion is a huge topic that has been widely investigated for over a century, influencing numerous books which have deep approached each specific topic. We recommend some recent review articles to delve deeper into each catalytic reaction, such as the nonoxidative conversion of methane [52][53][54][55][56][57][58], methane oxidation [4,53,[59][60][61][62], methane-to-methanol [49,53,59,[63][64][65][66], the oxidative coupling of methane [47,50,53,[67][68][69][70], methane steam reforming [25,53,60,[71][72][73][74][75], the dry reforming of methane [4,24,25,28,32,53,60,73,74,[76][77][78][79]<...…”

“…Natural gas represents a significant resource for catalytic conversions aimed at transforming methane into valuable industrial inputs and energy sources like syngas and hydrogen [27,71,84]. Figures 5-8 illustrate several important catalytic reactions for converting methane into added-value products through cleaner and more renewable processes, including the steam reforming of methane using water, the dry reforming of methane using CO 2 , electrocatalysis, and photocatalysis, which utilize electricity and sunlight as activation sources [11,26,27,71,72,76,[84][85][86]94,101].…”

“…transforming methane into valuable industrial inputs and energy sources like syngas and hydrogen [27,71,84]. Figures 5-8 illustrate several important catalytic reactions for converting methane into added-value products through cleaner and more renewable processes, including the steam reforming of methane using water, the dry reforming of methane using CO2, electrocatalysis, and photocatalysis, which utilize electricity and sunlight as activation sources [11,26,27,71,72,76,[84][85][86]94,101]. The steam reforming of methane for hydrogen production, depicted in Figure 5, is a pivotal process, which involves methane reacting with water vapor over a catalyst to produce hydrogen gas and carbon monoxide.…”

Comparison of the NiAl2O4 derived catalyst deactivation in the steam reforming and sorption enhanced steam reforming of raw bio-oil in packed and fluidized-bed reactors

“…Therefore, the challenges in the SR of bio-oil are focused on improving catalyst performance in order to increase H 2 yield and attenuate catalyst deactivation (coke formation and/or sintering) and on overcoming the thermodynamic limitation of the WGS reaction [11][12][13][14]. For this purpose, the use of a CO 2 solid sorbent together with the reforming catalyst (denoted sorption enhanced steam reforming, SESR) is an attractive strategy for H 2 production that improves the conventional SR for different feeds, as it increases H 2 yield and purity by shifting the equilibrium of the WGS reaction [15][16][17][18][19]. Moreover, SESR of bio-oil also contributes to making CO 2 sequestration easier, as it is released almost pure when the sorbent is regenerated, which has a remarkable techno-economic interest to contribute to energy decarbonization and reduction of emission taxes [20].…”

Investigation on Integrated CO2 Capture and Conversion Performance of Ni-CaO Dual-Function Materials Pellets: Effect of Ni Loading and Optimization of Operating Parameters

“…DFMs containing both alkaline and catalytic sites are highly essential for ICCU. , In terms of catalytic components, Ni outperforms Ru due to its great availability, low cost, and comparable activity for the intermediate-temperature CO 2 methanation reaction, medium-high temperature reverse water gas shift (RWGS), and dry reforming of methane (DRM) processes. As a result, Ni catalyst has gained increasing attention in constructing robust DFMs. , CaO has garnered widespread attention as an alkaline adsorbent due to its low cost and high CO 2 capacity. − Therefore, Ni-CaO DFMs have been identified as good candidates for ICCU applications. Müller et al physically combined natural limestone and the Ni/MgO-Al 2 O 3 catalyst for ICCU-DRM .…”