The improvement of heat transfer using Co/SiO spiral structured catalyst for green diesel production by Fischer-Tropsch synthesis.

In this study, the improvement of heat transfer was applied to eliminate hotspots of a highly exothermic reaction, Fischer-Tropsch synthesis (FTS), by means of two facile methods: (I) adding high thermal conductive materials media diluted in catalysts (SiC and Al chips), and (II) using structured reactors equipped with well-designed structured catalysts with advantages of heat dissipation/removal. The 20%Co/SiO catalyst powder prepared by simple impregnation was employed for constructing structured catalysts and granular packed bed catalysts. The structured catalyst was prepared by coating method of Co/SiO slurry on an aluminum spiral and plate substrate.

Natural Kaolin-Based Ni Catalysts for CO Methanation: On the Effect of Ce Enhancement and Microwave-Assisted Hydrothermal Synthesis.

Natural kaolin-based Ni catalysts have been developed for low-temperature CO methanation. The catalysts were prepared via a one-step co-impregnation of Ni and Ce onto a natural kaolin-derived metakaolin using a microwave-assisted hydrothermal method as an acid-/base-free synthesis method. The influences of microwave irradiation and Ce promotion on the catalytic enhancement including the CO conversion, CH selectivity, and CH yield were experimentally investigated by a catalytic test of as-prepared catalysts in a fixed-bed tubular reactor.

Facile synthesis of CaFeO for visible light driven treatment of polluting palm oil mill effluent: Photokinetic and scavenging study.

In this paper, a facile synthesis method for CaFeO is introduced that produces a catalyst capable of significant photocatalytic degradation of POME under visible light irradiation. The co-precipitation method was used to produce two catalysts at calcination temperatures of 550 °C and 700 °C dubbed CP550 and CP700. CP550 demonstrated the maximum COD removal of 69.