Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts

被引：71

作者：

Bahari, Mahadi B. ^{[1
]}

Setiabudi, Herma Dina ^{[1
,2
]}

Trinh Duy Nguyen ^{[3
]}

Phuong, Pham T. T. ^{[4
]}

Quang Duc Truong ^{[5
]}

Jalil, Aishah Abdul ^{[6
]}

Ainirazali, Nurul ^{[1
]}

Vo, Dai-Viet N. ^{[7
]}

机构：

[1] Univ Malaysia Pahang, Coll Engn Technol, Fac Chem & Proc Engn Technol, Kuantan 26300, Pahang, Malaysia

[2] Univ Malaysia Pahang, Ctr Excellence Adv Res Fluid Flow, Kuantan 26300, Pahang, Malaysia

[3] Nguyen Tat Thanh Univ, NTT Hitech Inst, 300A Nguyen Tat Thanh St,Dist 4, Ho Chi Minh City 755414, Vietnam

[4] Vietnam Acad Sci & Technol, Inst Chem Technol, 1 Mac Dinh Chi Str,Dist 1, Ho Chi Minh City, Vietnam

[5] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Katahira 2-1-1, Sendai, Miyagi 9808577, Japan

[6] Univ Teknol Malaysia, Fac Engn, Sch Chem & Energy Engn, Johor Baharu 81310, Johor, Malaysia

[7] Nguyen Tat Thanh Univ, Ctr Excellence Green Energy & Environm Nanomat CE, 300A Nguyen Tat Thanh,Dist 4, Ho Chi Minh City 755414, Vietnam

来源：

CHEMICAL ENGINEERING SCIENCE | 2020年 / 228卷

关键词：

Mesoporous alumina; Methane dry reforming; Metal oxide promoters; Co catalysts; Syngas; Hydrogen; SUPPORTED NICKEL-CATALYSTS; NI-BASED CATALYSTS; HYDROGEN-PRODUCTION; NI/SBA-15; CATALYSTS; NI/AL2O3; PERFORMANCE; CO; LA; STABILITY; OXIDES;

D O I：

10.1016/j.ces.2020.115967

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Co/mesoporous alumina (MA) catalysts promoted with Ce, La, Sm, and Y were evaluated via methane dry reforming. Co particle dispersion on MA was evidently improved after promoter incorporation, resulting in smaller crystallite size and lesser Co agglomeration. Unlike Ce and La promoters, the employment of Y and Sm promoters reduced catalyst reducibility by strengthening Co-MA interaction. The reactant con-versions improved in the order of YCo/MA > LaCo/MA > CeCo/MA > SmCo/MA > Co/MA, while the amount of carbon deposit was recorded with the sequence of Co/MA > SmCo/MA > LaCo/MA > CeCo/MA > YCo/ MA. Additionally, YCo/MA attained the highest activity (CH4 conversion = 85.8%, CO2 conversion = 92.2%) and possessed the lowest carbon deposition (7.02%) due to great Co dispersion, small Co particle size with strong Co-MA interaction and higher oxygen storage capacity. H-2/CO ratios were obtained within 0.78 0.86, slightly lower than 1 in consequence of the reverse water-gas shift. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：11

共 57 条

[1] Catalytic performance of CeO2 and ZrO2 supported Co catalysts for hydrogen production via dry reforming of methane [J].