TY  - JOUR
TT  - Effect of Impregnation Sequence during Synthesis Procedure on Performances of Bimetallic Ni-Co Catalysts in Dry Reforming of Methane
AU  - Arbağ, Hüseyin
PY  - 2017
DA  - April
Y2  - 2017
DO  - 10.17482/uumfd.305187
JF  - Uludağ Üniversitesi Mühendislik Fakültesi Dergisi
JO  - UUJFE
PB  - Bursa Uludağ University
WT  - DergiPark
SN  - 2148-4155
SP  - 39
EP  - 52
VL  - 22
IS  - 1
KW  - Metanın kuru reformlanma reaksiyonu
KW  - Mezogözenekli alümina
KW  - Nikel
KW  - Kobalt
KW  - Bimetalik.
N2  - In this study,mesoporous alumina supported bimetallic Ni-Co catalysts were synthesized usingsequential impregnation method. The synthesized catalysts were tested in dryreforming of methane at 750 oC. Before and/or after activity test, N2adsorption/desorption, XRD, TPR, SEM/EDX, and TG/DT analyses were performed forthe catalysts. TPR analysis showed that impregnation sequence of Ni and Cometals effects reducibility of the metal in the structure of the catalysts. Itwas shown that impregnation sequence of Ni-Co bimetallic catalysts significantlyeffects the reducibility of metals in the structure and accordingly thecatalytic performance of these catalysts. It was found that cobalt was morereducible in the catalyst which was prepared by impregnation of Ni firstfollowed by impregnation of Co. Co@Ni@SGA catalyst prepared this way showedmore stable and high catalytic activity. Bimetallic Ni-Co catalysts showed highactivity with a high resistance to coke formation, in dry reforming of methane.Amount of coke formation (3.6% by wt) over Co@Ni@SGA catalyst (which showedhigher activity in dry reforming of methane) was higher than the amount of coke(2.1% by wt) over Ni@Co@SGA catalyst. H2/CO ratio in product streamwas obtained as 0.78.
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UR  - https://doi.org/10.17482/uumfd.305187
L1  - https://dergipark.org.tr/en/download/article-file/293631
ER  -