FISCHER-TROPSCH SYNTHESIS ON SUPPORTED COBALT CATALYST: TEMPERATURE EFFECT

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ZAMANI YAHYA; BAHADORAN FARZAD; Shirazi Laleh

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Seminar Paper

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Seminar: IRANIAN SEMINAR OF ORGANIC CHEMISTRY
Year:2014 | Issue:22

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Title

FISCHER-TROPSCH SYNTHESIS ON SUPPORTED COBALT CATALYST: TEMPERATURE EFFECT

Author(s)

ZAMANI YAHYA | BAHADORAN FARZAD | Shirazi Laleh | Issue Writer Certificate

Keywords

FISCHER-TROPSCH SYNTHESIS

COBALT CATALYST

GHSV EFFECT

Abstract

DUE TO HIGH ACTIVITY OF COBALT METAL IN SYNGAS CONVERSION TO HIGHER HYDROCARBONS, SUPPORTED COBALT CATALYSTS HAVE BEEN WIDELY USED FOR FISCHER-TROPSCH SYNTHESIS (FTS) REACTION. COBALT CATALYST IS VERY ACTIVE TO PRODUCE LONG CHAIN NORMAL PARAFFIN AND ALSO IT SHOWS HIGH RESISTANCE TO DEACTIVATION [1-3].CO/AL2O3 CATALYST WAS PRODUCED BY A WET IMPREGNATION METHOD USING CO (NO3) 2 AQUEOUS SOLUTION AND AL2O3 SUPPORT. THE CO LOADING WAS 13 WT.% ON THE CATALYST. AFTER EVAPORATING TO ELIMINATE WATER, THE SAMPLES WERE DRIED AT 110OC FOR 24 H AND CALCINED AT 400OC FOR 3 H. THE CATALYST WAS PRESSED INTO PELLET, CRUSHED AND SIEVED. THE CATALYSTS WERE CHARACTERIZED USING X-RAY DIFFRACTION, TEMPERATURE-PROGRAMMED REACTION AND BET TECHNIQUES. THE EFFECT OF GAS SPACE VELOCITY ON CATALYTIC PERFORMANCE OF CO/AL2O3 CATALYST WAS STUDIED IN A FIXED BED REACTOR AT THE FOLLOWING CONDITIONS: 220-240OC, 20 ATM, H2/CO OF 2 AND GAS SPACE VELOCITIES OF 2.0 NL/G-CAT/H. THE CATALYST (30-40 MESH) WAS ACTIVATED IN SITU WITH HYDROGEN AT 380OC FOR 16 H. CO CONVERSION VARIED FROM 85% AT THE HIGHEST TEMPERATURE (240OC) TO ABOUT 40% AT THE LOWEST TEMPERATURE (220OC). SELECTIVITIES OF LIGHT HYDROCARBON PRODUCTS (CR1R TO CR4R) INCREASED WITH INCREASE IN TEMPERATURE, WHEREAS SELECTIVITY OF LIQUID AND WAX (CR5RP+P HYDROCARBONS) DECREASED.

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APA: Copy

ZAMANI, YAHYA, BAHADORAN, FARZAD, & Shirazi, Laleh. (2014). FISCHER-TROPSCH SYNTHESIS ON SUPPORTED COBALT CATALYST: TEMPERATURE EFFECT. IRANIAN SEMINAR OF ORGANIC CHEMISTRY. SID. https://sid.ir/paper/914032/en

Vancouver: Copy

ZAMANI YAHYA, BAHADORAN FARZAD, Shirazi Laleh. FISCHER-TROPSCH SYNTHESIS ON SUPPORTED COBALT CATALYST: TEMPERATURE EFFECT. 2014. Available from: https://sid.ir/paper/914032/en

IEEE: Copy

YAHYA ZAMANI, FARZAD BAHADORAN, and Laleh Shirazi, “FISCHER-TROPSCH SYNTHESIS ON SUPPORTED COBALT CATALYST: TEMPERATURE EFFECT,” presented at the IRANIAN SEMINAR OF ORGANIC CHEMISTRY. 2014, [Online]. Available: https://sid.ir/paper/914032/en

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