Propylene glycol , made from propylene, is used as a moisturizer in skin care lotions and cream. Propylene glycol is also used as industrial antifreeze and as hydraulic and brake fluid. Butylene is an important chemical used to manufacture products that improve the quality of gasoline. Natural gas is a raw material to make ammonia for agricultural fertilizer. Carbon black , which is used to reinforce rubber and make ink and batteries, comes from natural gas.
Paints use lamp black formed from natural gas for tinting.
Sulfur impurities contained in natural gas are removed to obtain raw materials for agricultural chemicals. Crude contains many different compounds with different properties. When these compounds are separated, they produce refined products . The most important refined product is gasoline . Gasoline is burned in car and truck engines.