Mailers who are sending flat-size mail (such as large envelopes) at Automation and Presorted First-Class Mail. prices. To use these prices, you must mail at least 500 pieces at a time, prepared and sorted according to Postal. Service guidelines.
From here, the liquid fractions are transported to other areas of the refinery for further. processing. Products from Petroleum. The products refined from the liquid fractions of crude oil can be placed into ten main categories. These main products are further refined to create materials more common to everyday life. The. ten main products of petroleum are: Asphalt. Asphalt is commonly used to make roads. It is a colloid of asphaltenes and maltenes that. is separated from the other components of crude oil by fractional distillation.
Some petroleum industry operations have been responsible for water pollution through by-products of refining and oil spills. The industry is the largest industrial source of emissions of volatile organic compounds (VOCs), a group of chemicals that contribute to the formation of ground-level ozone (smog).he United States consumed 25% of the oil produced in 2007. The production, distribution, refining, and retailing of petroleum taken as a whole represents the world's largest industry in terms of dollar value.