Integration of steam gasification and catalytic reforming of lignocellulosic biomass as a strategy to improve syngas quality and pollutants removal

Quiroga, Eliana; Cifuentes, Bernay; Moltó, Julia; García, Nuria Ortuño; Conesa, Juan A.; Davó‐Quiñonero, Arantxa; Cobo, Martha

doi:10.1016/j.wasman.2022.05.012

Cited by 19 publications

(3 citation statements)

References 70 publications

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“…Up to now, a large series of catalysts with high effective oxidation performance have been explored. Among of them, although silicon-based materials such as modi ed SBA-15, MCM-41, ZSM-22 and SiO 2 have a relatively good oxidation activity, the complicated process for the catalyst preparation and the harsh reaction conditions limits its application [15][16][17][18]. Instead, non-siliceous materials, especially metal oxides have been widely reported as the catalysts in many oxidation processes [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Cu2O@TiO2 core-shell microspheres for naphthalene oxidation

Wang

Zhou

et al. 2023

J Porous Mater

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New Cu 2 O@TiO 2 core-shell microspheres were successfully prepared for the rst time in this paper. The XRD, N 2 adsorption-desorption, SEM, TEM, EDX and XPS characterizations were utilized to investigate the physical and chemical properties. The liquid phase oxidation of naphthalene was also carried out to test their catalytic performance. The characterization results indicating that the Cu 2 O microspheres were rstly formed by hydrothermal treatment and the rutile TiO 2 coating on the surface would be formed by the hydrolysis of tetrabutyl titanate. The Cu 2 O@TiO 2 -5.0 catalyst with the molar ratio of copper to titanium species as high as 5.0 has the largest surface area and maximum pore volume resulting from the integrated microspheres with rougher surface thickness of about 6.3 nm, and it showed higher catalytic performance in the naphthalene liquid phase oxidation. Naphthalene conversion of 43.2%, 1, 4naphthoquinone selectivity of 26.7% and phthalic anhydride selectivity of 53.4% can be obtained, and it only slightly decreased even after repeated use for 5 times. The method would provide a valuable theoretic reference for the hindrance of Cu 2 O rapid deactivation and the industrial application of the naphthalene oxidation to produce high valuable chemicals.

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Section: Introductionmentioning

confidence: 99%

Cu2O@TiO2 core-shell microspheres for naphthalene oxidation

Wang

Zhou

et al. 2023

J Porous Mater

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“…The produced syngas and biochar could be directly employed as fuels for thermal generation or even as reducing gas for the process: the gasification technology provides a particular flexibility by giving the possibility of modulating process conditions. Even though the gasification technology is usually focused on syngas production [11][12][13][14], it is also possible to maximize biochar over the production of syngas at lower temperatures or stoichiometric ratios. In this context, recent examples can be found on the co-production of syngas and biochar through gasification processes [11,[15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Feasibility of Biomass Gasification for the Decarbonisation of Energy-Intensive Industries

Guerrero,

Sala,

Fresneda-Cruz

et al. 2023

Energies

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The current climatic and geopolitical situation leads to strong decarbonisation policies in several industries worldwide. Moreover, the European Union is pushing intensive industries to achieve a 55% reduction in CO2 emissions towards 2030. Among them, the steel manufacturing sector is at the lead of alternative projects that can help achieve this ambitious target. Co-production of syngas and biochar is one potential solution for this sector. Herein, a techno-economic analysis is provided to evaluate the economic feasibility and the effect of the most influential parameters for a successful deployment. A bibliographic review has been carried out to establish a clear baseline for such an analysis in terms of investment costs at several scales for gasification projects. Additionally, the cost evolution for coke, natural gas, and CO2 emission credits on the profitability of these projects are given. The case scenario processing 20,000 tbiomass/y is the most feasible solution, with a payback of around three years and a net present value (NPV) of around 15 million EUR, showing that biomass gasification can be an up-and-coming alternative in the mid-term.

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“…Furthermore, there are potential difficulties with ash fusion and the necessity to have feedstock with a moisture content less than 25%, and the ash discharge rate is another problem as well . Some of these disadvantages were solved by designing a horizontal reactor system, ,− which can be used with biomass feedstocks that contain moisture up to 30% and has the effective process for syngas production in the appropriate H 2 /CO ratio for further FT synthesis. However, the instability of temperature inside the reactor is still a problem; thus, this research attempts to supply the external heat source to control the temperature.…”

Section: Introductionmentioning

confidence: 99%

Syngas Production for Fischer–Tropsch Synthesis from Rubber Wood Pellets and Eucalyptus Wood Chips in a Pilot Horizontal Gasifier with CaO as a Tar Removal Catalyst

et al. 2022

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This research aims to investigate steam biomass gasification in a pilot horizontal gasifier using rubber wood pellets (RWPs) and eucalyptus wood chips (EWCs) for producing syngas with an H 2 /CO ratio range of 1.8 to 2.3 for Fischer−Tropsch synthesis. The study was divided into two parts. One was carried out in a lab-scale reactor to determine the effect of temperature and CaO on the gas product composition and the efficiency of tar removal. Another part was determined by investigating the effect of the steam/biomass (S/B) ratio on the produced H 2 /CO ratios in the pilot horizontal gasifier, which used the optimum conditions of temperature and % loading of CaO for tar removal according to the optimal conditions from the lab-scale gasifier. The lab-scale gasifier results showed that H 2 and CO 2 increased with temperature due to primary and secondary water gas reactions and hydrocarbon reforming reactions. The water gas shift and hydrocarbon reforming reaction depressed the CO and CH 4 contents with increasing temperature, respectively. The optimum gasifying temperature was 900 °C, which obtained H 2 /CO ratios of 1.8 for both RWPs and EWCs. The tar yield decreased with increasing temperature and was less than 0.2 wt % when using CaO as a tar-cracking catalyst. The operation of the pilot horizontal gasifier at the operating condition of 900 °C and a S/B ratio of 0.5 using 0.2 wt % loading of CaO for tar removal also produced a H 2 /CO ratio of 2.0. The supply of an external heat source stabilized the gasifying temperature, resulting in a stable syngas composition and production rate of 2.5 and 2.7 kg/h with H 2 /CO ratios of 1.8 and 1.9 for the RWPs and EWCs, respectively. In summary, the horizontal gasifier is another effective designed gasifier that showed high-performance operation.

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Integration of steam gasification and catalytic reforming of lignocellulosic biomass as a strategy to improve syngas quality and pollutants removal

Cited by 19 publications

References 70 publications

Cu2O@TiO2 core-shell microspheres for naphthalene oxidation

Cu2O@TiO2 core-shell microspheres for naphthalene oxidation

Techno-Economic Feasibility of Biomass Gasification for the Decarbonisation of Energy-Intensive Industries

Syngas Production for Fischer–Tropsch Synthesis from Rubber Wood Pellets and Eucalyptus Wood Chips in a Pilot Horizontal Gasifier with CaO as a Tar Removal Catalyst

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