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Study on coke resistance performances of Cs, In doped Ni/MgAl(O) catalysts in dry reforming reaction of methane and carbon dioxide
- Low-Carbon Chemistry and Chemical Engineering Vol. 50, Issue 12, Pages: 11-20(2025)
- 作者机构：
1.华东理工大学 化学工程联合国家重点实验室，上海 200237
2.中石化（上海）石油化工研究院 绿色化工与工业催化国家重点实验室，上海 201208
3.中石化齐鲁分公司研究院，山东 淄博 255400
- 作者简介：
- 基金信息：
DOI：10.12434/j.issn.2097-2547.20250087
CLC： TE64;TQ426Received：06 March 2025，
Revised：2025-04-15，
Published：25 December 2025
- 稿件说明：
移动端阅览
袁亨源,王昊,刘小梁等.Cs、In掺杂Ni/MgAl(O)催化剂的甲烷二氧化碳干重整反应抗积炭性能研究[J].低碳化学与化工,2025,50(12):11-20.
YUAN Hengyuan,WANG Hao,LIU Xiaoliang,et al.Study on coke resistance performances of Cs, In doped Ni/MgAl(O) catalysts in dry reforming reaction of methane and carbon dioxide[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(12):11-20.
袁亨源,王昊,刘小梁等.Cs、In掺杂Ni/MgAl(O)催化剂的甲烷二氧化碳干重整反应抗积炭性能研究[J].低碳化学与化工,2025,50(12):11-20. DOI： 10.12434/j.issn.2097-2547.20250087.
YUAN Hengyuan,WANG Hao,LIU Xiaoliang,et al.Study on coke resistance performances of Cs, In doped Ni/MgAl(O) catalysts in dry reforming reaction of methane and carbon dioxide[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(12):11-20. DOI： 10.12434/j.issn.2097-2547.20250087.
摘要
甲烷二氧化碳干重整（DRM）是一种有应用前景的“碳中和”工业催化过程，但该过程存在催化剂易积炭失活的问题。目前针对DRM催化剂的研究主要集中在对活性金属的单因素调控，而对载体和活性金属协同调控的研究相对较少。以Ni/MgAl
2
O
4
催化剂为基础，采用共沉淀法制备了一系列Ni质量分数均为2%的Ni基催化剂及Cs、In掺杂Ni基催化剂。结合XRD、H
2
-TPR和CO
2
-TPD等多种表征方法，研究了
n
(MgO):
n
(Al
2
O
3
)及Cs、In掺杂对催化剂结构和DRM反应催化性能的影响，并分析了催化剂的抗积炭机理。结果表明，在温度为1073 K、压力为0.1 MPa、
V
(CO
2
):
V
(CH
4
)为1:1和空速为72000 mL/(g·h)的条件下反应120 h，
n
(Cs):
n
(In):
n
(Ni) = 1:1:5、
n
(MgO):
n
(Al
2
O
3
) = 3:1的催化剂（Cs
0.2
In
0.2
-Ni/MAN-3）表现出最优的催化性能及抗积炭性能，其CH
4
转化率和CO
2
转化率分别为76.3%和79.5%，TG失重（质量分数）为2.0%。
Abstract
Dry reforming of methane and carbon dioxide (DRM) is a promising “carbon-neutral” industrial catalytic process. However
the process suffers from the problem of catalyst deactivation due to coke deposition. Current researches on DRM catalysts primarily focus on single-factor regulation of active metals
while studies on the synergistic regulation between supports and active metals remain relatively limited. Based on the Ni/MgAl
2
O
4
catalyst
a series of Ni-based catalysts and Cs
In doped Ni-based catalysts with the constant Ni mass fraction of 2% were prepared by co-precipitation method
. Combining with various characterization techniques such as XRD
H
2
-TPR
and CO
2
-TPD
the effects of
n
(MgO):
n
(Al
2
O
3
) as well as Cs
In doping on catalyst structures and DRM catalytic performances were investigated
and the anti-coking mechanism of catalysts was analyzed. The results indicate that after reaction for 120 h under the conditions of temperature of 1073 K
pressure of 0.1 MPa
V
(CO
2
):
V
(CH
4
) of 1:1 and space velocity of 72000 mL/(g·h)
the catalyst with
n
(Cs):
n
(In):
n
(Ni) of 1:1:5 and
n
(MgO):
n
(Al
2
O
3
) of 3:1 (Cs
0.2
In
0.2
-Ni/MAN-3) exhibits optimal catalytic and coke resistance performances
while its CH
4
conversion rate and CO
2
conversion rate are 76.3% and 79.5%
respectively
and the TG weight loss (mass fraction) is 2.0%.
关键词
Keywords
references
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