Conversion of Syngas to LPG and Aromatics Over Commercial Fischer-Tropsch Catalyst and HZSM-5 in a Dual Bed Reactor

Corsaro, Agnieszka; Wiltowski, Tomasz; Juchelková, Dagmar; Honus, Stanislav

doi:10.1080/10916466.2013.845574

Cited by 16 publications

(8 citation statements)

References 21 publications

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“…For instance, methanol, DME and olefins intermediates formed from syngas on metal components by COx hydrogenation are converted into aromatics exclusively on the HZSM‐5 either by a single‐bed catalyst, where two catalytic components are constructed under the same working conditions or dual‐bed catalysts in which two catalytic components separated through quartz wool spacer in a same tubular reactor ( Figure a) . Besides, a dual catalytic‐bed arrangement with separate reactors, where the active metal and zeolite components can work in different temperatures, are also reported in order to regenerate both components independently . As compared to a dual‐bed STA process (ie., both components in a single‐bed reactor or separate reactors), a single‐bed STA process, which concurrently triggers the intermediate formation by in situ aromatization, is combined in a single reactor using bifunctional catalysts where the two active components are close to each other with synergetic effects (Figure b,c).…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

2019

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Value‐added aromatic monomers such as benzene, toluene, and xylenes (BTX) are very important building‐block chemicals for the production of plastics, polymers, solvents, pesticides, dyes, and adhesives. Syngas‐to‐aromatics (STA) is a very promising approach for the synthesis of aromatic monomers, and is catalyzed via bifunctional catalysts in a single reactor, wherein methanol/dimethyl ether and/or olefins intermediates formed from syngas on metal components are converted into aromatic monomers exclusively on the HZSM‐5 by cascade reactions. Since an optimal Fischer–Tropsch synthesis (FTS) temperature of Fe‐based catalysts is very close to an aromatization temperature of HZSM‐5, Fe‐based catalysts have been frequently used/modified for the synthesis of aromatic monomers from hydrogenation of carbon oxides (CO and CO2). The nature of metal components and amounts of Brönsted acid sites on HZSM‐5, and their mesoporosity and intimacy, significantly alter the selectivity for aromatics by tuning BTX distibution and catalyst stability. Although many developments have been achieved regarding the STA process in recent years, no reviews have been published in this flourishing research area over the last two decades. Here, the recent advances and forthcoming challenges in the progress of syngas (CO+H2) chemistry and hydrogenation of CO2 toward the value‐added aromatic monomers through cascade reactions are highlighted.

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

2019

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“…Corsaro et al. (2014) [89] studied the conversion of syngas to LPG over HZSM‐5 zeolite, and Fischer‐Tropsch catalyst in dual bed reactor. They studied the effect of HZSM‐5 loading rate, temperature effect and syngas gas flow rate on the conversion of CO and the selectivity of LPG and aromatics.…”

Section: State Of Art Updates On the Conversion Of Syngas To Lpgmentioning

confidence: 99%

“…Researchers have studied zeolites effect on [a] F/W [mL.g À 1 .h ChemistrySelect the process of LPG production from synthetic gas using various techniques and via several modifications. Corsaro et al ( 2014) [89] studied the conversion of syngas to LPG over HZSM-5 zeolite, and Fischer-Tropsch catalyst in dual bed reactor. They studied the effect of HZSM-5 loading rate, temperature effect and syngas gas flow rate on the conversion of CO and the selectivity of LPG and aromatics.…”

Section: Effect Of Zeolite Speciesmentioning

confidence: 99%

A Review on the Conversion of Synthetic Gas to LPG over Hybrid Nanostructure Zeolites Catalysts

Al-Qadri

Nasser

Galadima³

et al. 2022

ChemistrySelect

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Recently, Liquified petroleum gas (LPG) attracts wide applications due to its high heating value and clean combustibility. An innovative approach to synthesis of LPG from syngas was established based on Fisher-Tropsch (F-T) technology. However, the conversion and selectivity are generally low with the classical catalysts. The hybrid system of methanol and zeolitebased catalyst was established as a potential approach to promote such a process. To strongly overcome the large demand of LPG and grasp the research work in this subject, a comprehensive review became necessary. LPG is basically produced from syngas through the direct method, where most recent studies lay on, and the indirect or semi direct approach. There were several factors affecting the process performance, which mainly are the reaction temperature, reaction pressure, type of the hybrid catalyst, carbon monoxide to hydrogen ratio, mixture flow rate, and time-on-stream of the reaction. The most common reaction conditions reported in the literature are 260-400 °C, 10-50 bars and H 2 to CO ratio of 2. However, the most important parameter considered was the catalyst, which is a key factor of interest. The two main issues controlling the catalyst performance were the synergetic effect between the two hybridized catalysts and the used type of zeolite. It was perceived that the higher the zeolite membered rings the better the LPG selectivity (i. e., BEA, and USY provided the higher LPG production rate).

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“…The formed light alkenes and C5+ aliphatic molecules were then transferred into the second reactor and converted into aromatics on H-Ga-silicate. Corsaro et al [88] tested the dual-bed process of a Co-based catalyst and HZSM-5 zeolite, showing an impressive increase in the aromatic selectivity from zero to 28.4% compared to the single Co-based catalytic process, as well as a decrease in CO2 and CH4 selectivities (by 26.3% and 20.6%, respectively). With further alterations to the reaction conditions of the ZSM-5 part, the LPG and aromatic selectivity displayed maximum values at 623 K, HZSM-5 loading = 2.5 g, and GHSV = 4.8 Lsyngas gcat -1 h -1 .…”

Section: Ft Catalysts-zeolites Catalystsmentioning

confidence: 99%

Direct conversion of syngas to aromatics: A review of recent studies

Yang

Chen

et al. 2020

Chinese Journal of Catalysis

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The direct catalytic conversion of syngas to aromatics offers a promising route to manufacture fine chemicals by employing non-petroleum carbon resources, because aromatic constituents are the key platform for producing polymers. However, this remains a great challenge due to the low yield of aromatics and poor catalyst stability, which restrict further development. In recent years, extensive research has been reported on the design of effective catalysts and the optimization of operating conditions to obtain better catalytic performance. In this review, we focus on these related achievements and present a comprehensive overview of different kinds of catalysts, mainly including modified Fischer-Tropsch (FT) catalysts and composite catalysts, as well as their performance and reaction mechanisms. The thermodynamic analysis of the reactions involved in this innovative conversion process and the comparison of different methods are also described in detail in this updated review. Finally, the challenges and prospects for direct syngas conversion are discussed to provide general guidelines for the construction of a well-designed reaction route.

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Conversion of Syngas to LPG and Aromatics Over Commercial Fischer-Tropsch Catalyst and HZSM-5 in a Dual Bed Reactor

Cited by 16 publications

References 21 publications

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

A Review on the Conversion of Synthetic Gas to LPG over Hybrid Nanostructure Zeolites Catalysts

Direct conversion of syngas to aromatics: A review of recent studies

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