Evaluation of catalytic performance of the Ni/M-MgO (M=Cu, W, and Ti) catalysts for dry reforming of glycerol

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING Biomass & Bioenergy Pub Date : 2025-01-01 Epub Date: 2024-12-01 DOI:10.1016/j.biombioe.2024.107524

Raziye Salehi , Fereshteh Meshkani

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Abstract

TiO₂.MgO supports with different TiO₂/MgO molar ratios (1, 1/3, 1/6, and 1/9) were prepared via the hydrothermal method and chosen as support for the 20 wt% Ni active phase. The MgO support was also modified with WO₃ and CuO for comparison. XRD, BET, SEM, H₂-TPR, and O₂-TPO analyses were conducted to estimate the structural properties of the catalysts. Examination of the BET of the catalysts showed a decreased surface area in the 18.4–63.6 m²/g range with an increasing TiO₂/MgO ratio. The TiO₂/MgO = 1/6 ratio exhibited the best performance and lifetime even after reaction for 20 h at 750 °C and GHSV = 54000 mL/g.h and was selected as the optimal ratio. The catalytic results also demonstrated that the TiO₂, WO_3, and CuO-doped Ni/MgO catalysts positively affect catalyst performance. However, due to the higher surface area and strong metal-support interaction, the Ni/TiO₂.6MgO catalyst seems to be a better choice for the glycerol dry reforming process.

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Ni/M- mgo （M=Cu， W和Ti）催化剂对甘油干重整的催化性能评价

二氧化钛。通过水热法制备了不同TiO2/MgO摩尔比（1、1/3、1/6和1/9）的MgO载体，并选择它们作为20 wt% Ni活性相的载体。MgO支持也被修改为WO₃和CuO以进行比较。通过XRD、BET、SEM、H₂-TPR、O₂-TPO等分析对催化剂的结构性能进行了表征。催化剂的BET测试表明，随着TiO2/MgO比的增加，催化剂的表面积在18.4 ~ 63.6 m2/g范围内减小。在750℃、GHSV = 54000 mL/g.h条件下反应20 h后，TiO2/MgO = 1/6的配比仍表现出最佳的性能和寿命。催化结果还表明，TiO2、WO3和cuo掺杂的Ni/MgO催化剂对催化剂性能有积极影响。然而，由于Ni/TiO2.6MgO催化剂具有较高的比表面积和较强的金属-载体相互作用，似乎是甘油干重整过程的更好选择。

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来源期刊

Biomass & Bioenergy 工程技术-能源与燃料

CiteScore

11.50

自引率

3.30%

发文量

258

审稿时长

60 days

期刊介绍： Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.