1.Premium gas is pricier than regular gas. 2.Premium gas has higher octane ratings than regular gas. 3.Premium gas is ideal for the high-performance class and high-compression cars while regular gas is already good for most of the other regular to mid-class cars.4.Premium gas is believed by some to have more detergents (that serve to clean the engine) than regular gas.astly, some believe that premium gas has more detergent properties than regular gas. This means fewer residues left for premium gas users. However, it has also been discovered that most governments already regulate the required detergents in gasoline.
Lignin, a natural polymer found in wood, is a polyaromatic polyol that is readily available and relatively inexpensive. Lignin structure is dependent on wood species and processing conditions [2] . Commercially, lignin is obtained as a by-product of âwood freeâ papermaking.
However, it is not known what the effect of adding a small quantity of H 2 SO 4 will have on the yield and composition of lignin derived products (mono-phenols and lignin oligomers). Thus, the main goal of this paper is to investigate the effect of small quantities of H 2 SO 4 on the yield and composition of lignin derived oligomers from Douglas fir. 2. Material and methods