Effect of support for alcohol-hydrocarbon synthesis from syngas in Cu-based catalyst

• Published in: The Korean journal of chemical engineering Vol. 30; no. 4; pp. 864 - 870
• Main Authors: Yeon, Sun-Hwa, Shin, Dae-Hyun, Nho, Nam-Sun, Shin, Kyoung-Hee, Jin, Chang-Soo, Nam, Sung-Chan
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.04.2013; 한국화학공학회
• Subjects: Biotechnology; Catalysis; Chemistry; Chemistry and Materials Science; Energy; Industrial Chemistry/Chemical Engineering; Materials Science; 화학공학; Activated Carbon; Ethanol; Titanium Dioxide; Support; Copper; Zinc Oxide; Catalyst
• ISSN: 0256-1115; 1975-7220
• DOI: 10.1007/s11814-012-0205-y

Effects of a Cu-based catalyst on the catalytic performance in alcohol-hydrocarbon synthesis from syngas have been investigated, using various supports. Under the different porosities of three supports (zinc oxide, activation carbon, and titanium dioxide), whereas Cu/ZnO produces one liquid phase of major mixed alcohols, Cu/AC and Cu/TiO 2 create two phases, alcohol (∼75%) and hydrocarbon (∼25%). X-ray diffraction shows that CuO impregnated on supports undergoes a complete reduction of metallic copper Cu 0 , which is the real active phase in the catalytic process. The Cu/TiO 2 catalyst showed the highest ethanol composition in a mixed alcohol phase under GHSV 18,000 h −1 , 30 bar, and 300 °C.