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Methanol Dehydration to Dimethyl Ether over Modified-Al2O3 with Acid, Base and Zeolite (NaA and NaX) Maria Ulfah Hendra Suherman Melia Laniwati IGBN Makertihartha Subagjo Subagjo 1 Department of Chemical Engineering, Bung Hatta University, Jl. Gajahmada No. 19, Nanggalo Olo, Kampus III Bung Hatta University, Padang , Indonesia 2 Chemical Reaction Engineering & Catalysis Group, Department of Chemical Engineering, Institut Technology Bandung, Jl. Ganesa 10, Bandung, Indonesia e-mail: mariaulfah@bunghatta.ac.id

Methanol Dehydration to Dimethyl Ether over Modified γ-Al2O3 with Acid, Base and Zeolite (NaA and NaX)