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contained in natural gas or stranded gas [ 1 , 2 ]. Even though carbon dioxide reforming with methane (CDR) could be the best way to utilize the green house gas CO 2 directly, its industrial application is restricted because of severe coke formation

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change in pore size distribution was revealed, the larger pores were transformed into smaller ones, probably by coke formation. In the case of the Cu_II sample, we observed a slight increase of the specific surface area. This effect is probably related to

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Shakeel Ahmed, Faizur Rahman, Adnan M. J. Al-Amer, Eid M. Al-Mutairi, Uwais Baduruthamal, and Khurshid Alam

that of non-oxidative dehydrogenation and additionally minimize coke formation and catalyst deactivation [ 6 ]. Another challenge with OXDH is to minimize the formation of carbon monoxide, carbon dioxide and water. However, efforts are needed to improve

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energies merge to the same value of ∼125 kJ mol −1 at α = 0.66, when the coke formation mechanisms shall be similar and eventually the process of coke formation is completed; from α = 0.66 to α = 0.90, the activation energy corresponding to the coke

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Journal of Thermal Analysis and Calorimetry
Authors: Edjane F. B. Silva, Marcílio P. Ribeiro, Ana C. F. Coriolano, Ana C. R. Melo, Anne G. D. Santos, Valter J. Fernandes Jr., and Antonio S. Araujo

by Petrobras, the oil present a high number of carbon residue (9.7% m/m), resins (28.7%), and asphaltenes (3.84%). It was possible to note a tendency to coke formation at 600 °C. The total acidity equivalent to 1.6 mg KOH/g indicates a naphthenic

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Journal of Thermal Analysis and Calorimetry
Authors: Armando Lucas Cherem da Cunha, Mariana Santos Lemos, Sergio Meth, Jardel Pereira Gonçalves, and Jo Dweck

Introduction During fluid catalytic cracking (FCC) of oil heavy fractions, the catalyst not only suffers the reversible deactivation due to coke formation but also irreversible processes take place such as the sintering of the

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Biofuels

Part II. Thermogravimetric research of dry decomposition

Journal of Thermal Analysis and Calorimetry
Authors: Sławomir Poskrobko and Danuta Król

loss, i.e. d m = 0, which in the case of dry biomass distribution determines the conditions of coke formation. The percentage of dry residue, i.e. coke (curve for d m = 0), is read from the TG curve, where the final temperature of the pyrolysis

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cracking resulting in coke formation. However, when incorporated onto nanoparticles it was observed that pyrolysis temperature decreased significantly, with lowest pyrolysis temperatures observed for NiO followed by Co 3 O 4 and Fe 3 O 4 , respectively. It

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different SiO 2 /Al 2 O 3 ratios converted glucose into LA with 36% yield at 453 K in an autoclave for 8 h [ 12 ]. The use of pillared clay catalysts for the dehydration of glucose gave a low LA selectivity (20%) [ 13 ] because of a coke formation. Chen et

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Kenichiro Inoue, Kiyomi Okabe, Megumu Inaba, Isao Takahara, and Kazuhisa Murata

coke formation during the reactions and the improvement of catalyst stability [ 14 ]. The ethylene production by the dehydration of ethanol increased with the decrease in the surface acidity whereas C 4 formation by the oligomerization

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