Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Yadollah Mortazavi"'
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 32, Iss 3, Pp 45-59 (2013)
Hydrogen can be produced for fuel cell applications by using methanol steam reforming reaction. In this article, a method was developed for regeneration of accelerated deactivated methanol-steam-reforming catalyst. Successive deactivation–regenerat
Externí odkaz:
https://doaj.org/article/b488ab463f81420dad06f8b9367ac25d
Autor:
Ahmad Tavasoli, Mohammad Irani, Ali Nakhaeipour, Yadollah Mortazavi, Abas Ali Khodadadi, Ajay K. Dalai
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 28, Iss 1, Pp 37-48 (2009)
The potential of carbon nanotubes (CNT) supported cobalt catalysts for Fischer-Tropsch (FT) reaction is shown. Using the wet impregnation method cobalt on carbon nanotubes catalysts were prepared with cobalt loading varying from 15 to 45 wt. %. The c
Externí odkaz:
https://doaj.org/article/c283b1a1acc64c89a48db442ef16d39c
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 27, Iss 4, Pp 71-77 (2008)
Catalysts with the formula of LaCo(1+x)O(3+δ), where 0 ≤ x ≤ 1, were studied for oxidation of CO and C2H6 in a synthetic exhaust gas, comprising 6.0 % CO and 0.2 % C2H6 in Ar. Ethane was selected as a model for hydrocarbons in the exhaust gas. T
Externí odkaz:
https://doaj.org/article/f18b7ba56370416da4502e4ed05aea48
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 26, Iss 2, Pp 109-117 (2007)
In a novel dual bed reactor Fischer-Tropsch synthesis was studied by using two diffrent cobalt catalysts. An alkali-promoted cobalt catalyst was used in the first bed of a fixed-bed reactor followed by a Rutenuim promoted cobalt catalyst in the secon
Externí odkaz:
https://doaj.org/article/cd37bff4b2dc4bc99159034330ba37f1
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 25, Iss 3, Pp 9-13 (2006)
Bamboo-structured carbon nanotubes are grown on Co-Mo/MCM-41 catalyst in the temperature range of 873-973 K by thermal chemical vapor deposition of acetylene. This study shows that the purified carbon nanotubes have open tips and the metals of the ca
Externí odkaz:
https://doaj.org/article/2502e0c42b054e219b6b43dbde72d636
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 24, Iss 4, Pp 25-36 (2005)
Accelerated deactivation of Co/Al2O3 catalysts in Fischer-Tropsch synthesis and the effect of Re and Ru as the catalytic promoters are reported. 15wt% Co/Al2O3 catalyst and 1wt% Ru and 1.4wt% Re promoted cobalt catalysts have been formulated and exte
Externí odkaz:
https://doaj.org/article/08f9d4cb58db45a89695efa58a0164ed
Autor:
Mohammad Sadegh Haji Tarverdi, Yadollah Mortazavi, Abbas Ali Khodadadi, Shamsoddin Mohajerzadeh
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 24, Iss 4, Pp 63-71 (2005)
Noncatalytic and nonoxidative conversion of methane in a dielectric barrier discharge (DBD) reactor is examined at different temperatures, gas residence times and input powers. In addition, the ratio of methane to helium as a diluant, is changed in t
Externí odkaz:
https://doaj.org/article/05900749bfb441f3af39f57b0cdde45b
Autor:
Ahmad Tavasoli, Yadollah Mortazavi, Abbas Ali Khodadadi, Mohammad Ali Mousavian, Kambiz Sadagiani, Ali Karimi
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 24, Iss 3, Pp 9-17 (2005)
An extensive study of Fischer-Tropsch synthesis (FTS) on alumina-supported cobalt catalysts promoted with different amounts of ruthenium and rhenium is reported. Up to 2 wt% of promoters, are added to the catalyst by coimpregnation. The catalysts are
Externí odkaz:
https://doaj.org/article/3f7ee48be6bd45288a95d9a6ecff4ea4
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 23, Iss 2, Pp 1-11 (2004)
A study was made of the coking of a commercial fresh sulfide Ni-Mo/Al2O3 catalyst in a fixed-bed reactor. The catalyst was coked using different coke precursors in the gas oil under accelerated conditions at temperatures of 400 to 450°C to yield dif
Externí odkaz:
https://doaj.org/article/41e066b39a4947b594fab44cd4a697e5
Autor:
Masoud Rismanchian, Farideh Golbabaei, Yadollah Mortazavi, Gholamhossein Pourtaghi, Abbas Rahimi Foroushani, Parvin Nassiri
Publikováno v:
International Journal of Photoenergy, Vol 2012 (2012)
The most important parameters affecting the efficiency of catalysts for the oxidation of the surrounding materials are considered to be the thickness and uniformity of the catalyst layer. The present method for the determination of thickness used in
Externí odkaz:
https://doaj.org/article/a1a4a00425484af7adfc388765327c94