Abstract
Higher alcohol has been considered as a potential fuel additive. Higher alcohol, including C2–C4 alcohol was synthesized by catalytic conversion of syngas (with a ratio of CO/H2 = 1) derived from natural gas over modified Cu/ZnO/Al2O3 catalyst. Modified Cu/ZnO/Al2O3 catalysts promoted by alkali metal (Li) for higher alcohol synthesis (HAS) were prepared at different pH (6, 6.5, 7, 8, and 9) by co-precipitation to control Cu surface area and characterized by N2 physisorption, XRD, SEM, H2-TPR and TPD. The HAS reaction was carried out under a pressure of 45 bar, GHSV of 4000 h−1, ratio of H2/CO = 1, and temperature ranges of 240 and 280 °C. It was found that the malachite phase of copper causes the size of copper to be small, which is suitable for methanol synthesis. Methanol and HAS share a common catalytic active site and intermediate. It was also found that the productivity to higher alcohol was correlated with Cu surface area.
Original language | English |
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Pages (from-to) | 3813-3822 |
Number of pages | 10 |
Journal | Research on Chemical Intermediates |
Volume | 44 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2018 Jun 1 |
Keywords
- Co insertion
- Cu surface area
- Higher alcohol productivity
- Malachite phase
ASJC Scopus subject areas
- Chemistry(all)