Год выпуска: 2013 Автор: Mohsen Mansouri,Hossein Atashi and Naimeh Setareshenas Издательство: LAP Lambert Academic Publishing Страниц: 60 ISBN: 9783659439001
Описание
The catalytic conversion of synthesis gas, derived from natural gas, into liquid hydrocarbon fuel via the Fischer–Tropsch synthesis (FTS), is currently receiving much attention due to the demand for environmentally friendly liquid fuel and the rising costs of crude oil. From an industrial perspective, both cobalt and iron catalysts have been applied. However, cobalt catalysts are preferred for gas-to-liquid processes as they have high activity for FTS, high selectivity to linear hydrocarbons and low activity for the water–gas shift reaction. As cobalt is relatively expensive, high catalyst stability is desired. Supported Co catalysts with high specific rates require the synthesis of small metal crystallites at high local surface densities on support and the use of supports or alloys that increase the rate per surface Co (turnover rate). It has been reported that the cobalt and cerium matrix plays a synergistic role in the chemisorption of reactant molecules, thereby controlling the...
