Gasoline Production by Dehydration of Dimethyl Ether with NH4-ZSM-5 Catalyst

A Review on Deactivation and Regeneration of Catalysts for Dimethyl Ether Synthesis

“…K.C. Liang et al [134] conducted an experiment in which the ammonium form of the H-ZSM-5 catalyst was used. The experiment was carried out in a tubular reactor, and the tests were carried out for 240 h at a temperature of 300 • C. Regeneration was carried out with the use of air for 10 h, with flow of 0.5 l pm, pressure of 0.10 MPa, and temperature of 570 • C. The regeneration carried out in this way allowed the structure of the catalyst to remain unchanged after six regenerations.…”

COxFixation to Elementary Building Blocks: Anaerobic Syngas Fermentation vs. Chemical Catalysis

“…It is also a promising fuel for the transportation section due to its considerable energy density, its high cetane number (CN) and the absence of C‐C bonds, resulting in lower emissions of particulate matter (PM), soot, hydrocarbons and CO, when comparing to diesel 53, 54. DME is also a feedstock for different processes such as DME‐to‐Gasoline, DTG 55, 56, aromatic free olefins (C 4 to C 7 range) 57 and oxymethylene ethers (OMEs) 58.…”

Direct synthesis of dimethyl ether from CO2 hydrogenation over a highly active, selective and stable catalyst containing Cu–ZnO–Al2O3/Al–Zr(1 : 1)-SBA-15

“…It was critically reviewed by us recently. 1,2 DME is a clean fuel as it gets depleted very quickly in the atmosphere, 3 and it is an intermediate for a series of industrially essential chemicals such as acetic acid, 4,5 formaldehyde, 6 methyl acetate, 7 ethanol, 8 aromatics, 9,10 gasoline, 11 light olefins, 12–14 higher ethers, oxygenates, etc. 15,16 The auto-ignition property of DME makes it a high-efficiency compression ignition fuel and DME is far from being carcinogenic, toxic, teratogenic, or mutagenic.…”