Catalytic ozonation methanol

Ozone decomposition in airplanes Selective catalytic reduction of NOx Arrays of corrugated plates Arrays of fibers Gauzes Ag Methanol -> formaldehyde Pt/Rh NO production from ammonia HCN production from methane Foams Catalytic membranes reactors... 

A mixture of 9-methoxyanthracene, hexadecanol, and a catalytic amount of p-toluenesulfonic acid in benzene refluxed 62 hrs. with a Dean-Stark trap containing CaClg to remove methanol, while most of the benzene is also removed by periodic drainage of the trap 9-hexadecyloxyanthracene (Y 83%) mixed with methylene diloride, added at - 78° under Ng to ozonized triphenyl phosphite (s. Synth. Meth. 25, 109), the temp, allowed to rise to 25°, methylene diloride replaced by ethyl acetate as solvent, and hydrogenated 0.5 hr. with 10%-Pd-on-carbon at ca. 43.5 p.s.i. hexadecanol (Y 68%). F. transetherifications s. W. E. Barnett and L. L. Needham, J. Org. Chem. 36, 4134 (1971). 

The most serious problem with methanol may be its tendency to form formaldehyde, HCHO, when it is combusted. Formaldehyde has been implicated as a carcinogen (a substance that causes cancer). Formaldehyde can also lead to ozone formation in the air, which causes even more severe smog. Researchers are now working on catalytic converters for exhaust systems to help decompose the formaldehyde. 

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