RON (research octane number)
The naphtha product yield was about 90% with a RON higher than 92. Both the hydrogen production and its purity were high.
The octane number may be improved about 1.8-31 units by above mentioned processing, the stability is also improved, and the vapour pressure is decreased.
Most of the performances of methanol gasoline of 10%-15% ( volume fraction) methanol are nearly the same as those of unleaded motor gasoline and the RON is 1.5-3.5 higher.