Catalytic Conversion of CO2/H2 into Alcohol Using Modified Lampung–Zeolite as Catalyst

Abstract

This work was carried out to study the potency of modified lampung-zeolite as catalyst for conversion of CO 2 /H 2 into alcohol compounds. The zeolite was activated using 0.1N nitric acid, by soaking the zeolite in the acid for 2 h and then impregnated by Fe 2 O 3 with varied content of 1 -7% (g/g). To examine its activity, the catalyst was used in CO 2 /H 2 conversion experiment at different temperatures (200 to 400 o C). The experimental results indicated the zeolite impregnated by iron ions exhibits catalytic activity, and the highest alcohol formation (26000 ppm) was achieved by 5% Fe 2 O 3 doped zeolite at 200 o C. X-ray diffraction of washed-zeolite revealed that its crystalline phase is a clinoptilolite type of zeolite with monoclinic structure. Infra-red spectra analysis proved that 5% Fe 2 O 3 doped zeolite has Bronsted-Lowry and Lewis acid sites presenting at wave number of 1466 and 1648 cm -1 respectively. Furthermore, SEM analysis implied that Lampung zeolite has a channel pattern and relatively good porous distribution.