Dual catalyst-sorbent role of dolomite in the steam reforming of raw bio-oil for producing H2-rich syngas

Valle, Beatríz; García-Gómez, Naiara; Remiro, Aingeru; Bilbao, Javier; Gayubo, Ana G.

doi:10.1016/j.fuproc.2019.106316

Cited by 30 publications

(10 citation statements)

References 52 publications

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“…The addition of calcined dolomite in corncob pyrolysis also influences the composition of pyrolysis gas, as can be seen from Figure b; the presence of calcined dolomite will increase the yield of H 2 , CH 4 , and CO, and decrease CO 2 yield at the same time, while CH 4 and light olefins change a little. The decrease of CO 2 can be attributed to the fact that calcined dolomite is able to capture CO 2 , converting the CaO in it back to CaCO 3 , − and the increase of H 2 and CO could be due to the promoted reforming of oxygenates in the presence of calcined dolomite. − It should be mentioned that the CaCO 3 formed in calcined dolomite during the pyrolysis process could be regenerated to CaO at above 900 °C through the combustion of biochar, reducing the huge heating costs for the recycle of calcined dolomite.…”

Section: Resultsmentioning

confidence: 99%

Catalytic Pyrolysis of Biomass to Produce Aromatic Hydrocarbons over Calcined Dolomite and ZSM-5

Chen

Liu

et al. 2021

Energy Fuels

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In this study, the method for the promotion of aromatics production through catalytic pyrolysis of biomass over the combination of calcined dolomite and ZSM-5 was investigated. The influence of reaction conditions and catalyst type on product distribution was studied in pyrolysis−gas chromatography/mass spectrometry (Py-GC/MS) and a fixed-bed reactor. The results showed that calcined dolomite favored the removal of acids, sugars, and methoxyphenols, reducing the content of oxygen-containing components with a lower effective hydrogen to carbon ratio and larger molecule size, which thus enhanced the formation of BTX (benzene, toluene, and xylene) over ZSM-5. The highest BTX yield was achieved when the mass ratio of biomass:calcined dolomite:ZSM-5 was 1:1:4, which was 22.92% higher than ZSM-5 alone and 8% higher than the conventional CaO/ZSM-5 system. On the other hand, calcined dolomite favored the formation of H 2 , contributing to the inhibition of the formation of naphthalene and 2-methyl-naphthalene.

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Section: Resultsmentioning

confidence: 99%

Catalytic Pyrolysis of Biomass to Produce Aromatic Hydrocarbons over Calcined Dolomite and ZSM-5

Chen

Liu

et al. 2021

Energy Fuels

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“…Natural ores such as calcite ( Papadopoulou and Ioannides, 2020 ), dolomite ( Valle et al, 2020 ), olivine ( Acha et al, 2020 ), and so on ( Liu et al, 2020 ) are also often used as carriers for catalytic reforming of bio-oils for hydrogen production because of their low cost, wide distribution, abundance of species, and relatively high catalytic efficiency. Studies have shown that the optimal conversion of bio-oil by Fe-olivine is 97.2% ( Quan et al, 2017 ).…”

Section: Progress In Catalytic Reforming Of Bio-oil For Hydrogen Prod...mentioning

confidence: 99%

Review of catalytic reforming of biomass pyrolysis oil for hydrogen production

Cheng-bing

2022

Front. Chem.

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After more than 20 years of development, biomass rapid pyrolysis technology has become technically mature. However, its main product biomass pyrolysis oil (bio-oil) has limited its application due to low energy density and poor thermal stability. Catalytic reforming is a workable way for bio-oil subsequent utilization to produce hydrogen. In this article, the research status and main research directions of bio-oil catalytic reforming for hydrogen production are summarized, with emphasis on CO2 adsorption-enhanced catalytic reforming for hydrogen production.

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“…On‐board hydrogen production through steam reforming from fossil fuels is considered as a promising technique for safely supplying hydrogen to fuel cells. However, 0.5 to 2.0 vol% СО is inevitable produced during the reforming process, 1 which causes severe toxic effects for Pt‐based anodes of proton exchange membrane fuel cells (PEMFCs) and sharp decline in electrochemical performance 2 . Therefore, it is still necessary to conduct an additional purification step to decrease the concentration of CO to below 10 ppm in H 2 ‐rich reformed gas 3 .…”

Section: Introductionmentioning

confidence: 99%

Zr‐promoted nickel‐rich spinel‐supported Ni catalysts with enhanced performance for selective CO methanation

Ping

Wan

Zhao

et al. 2022

Intl J of Energy Research

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CO selective methanation (CO-SMET) is an efficient hydrogen purification technology for proton exchange membrane fuel cells. The development of nonnoble metal-based catalysts is quite essential and imperative for CO-SMET and has received considerable interest. Herein, a Zr-promoted nickel-rich spinel-supported Ni catalyst (Ni-ZrO 2 /NiAl 2 O 4 ) was acquired by an epoxidedriven sol-gel process and associated co-impregnation method. The usage of ZrO 2 could enhance the reducibility of the Ni oxides and promote the formation of small Ni particles size, then effectively increase the sorption capacities for both H 2 and CO and facilitate the CO dissociation from catalyst surfaces.All these endowed the catalyst with excellent catalytic performance for CO-SMET, which could lower the CO outlet level to less than 10 ppm with the selectivity higher than 50% within a large temperature window (185 C-255 C).Additionally, the catalyst was highly stable with no obvious carbon deposition or performance degradation during the long-term stability test. This work offers a new technical route to build highly efficient nickel-rich spinelsupported catalysts in the production of high-quality hydrogen.

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Dual catalyst-sorbent role of dolomite in the steam reforming of raw bio-oil for producing H2-rich syngas

Cited by 30 publications

References 52 publications

Catalytic Pyrolysis of Biomass to Produce Aromatic Hydrocarbons over Calcined Dolomite and ZSM-5

Catalytic Pyrolysis of Biomass to Produce Aromatic Hydrocarbons over Calcined Dolomite and ZSM-5

Review of catalytic reforming of biomass pyrolysis oil for hydrogen production

Zr‐promoted nickel‐rich spinel‐supported Ni catalysts with enhanced performance for selective CO methanation

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