CHE 310 Lecture 7: CHE310FossilFuels

• School: Stony Brook University
• Department: Chemistry
• Course: CHE 310
• Professor: Katherine Aubrecht

Document Summary

Some of the buried carbon compounds accumulated in deposits, and were subjected to high te(cid:373)peratures a(cid:374)d pressures i(cid:374) earth"s (cid:272)rust. They (cid:271)e(cid:272)a(cid:373)e (cid:272)oal, oil, a(cid:374)d gas, (cid:449)hi(cid:272)h we now use to fuel our industrial civilization. Although the moles of co2 produced by burning fossil fuels are the same as the moles of o2 consumed, the impact on the atmospheric co2 is much greater. The more saturated the hydrocarbon, more h/c ratio then slightly more energy then calculated. Oxygenates can be added to gasoline in order to reduce co emissions. Si(cid:374)(cid:272)e so (cid:373)u(cid:272)h oil re(cid:373)ai(cid:374)s i(cid:374) the grou(cid:374)d, there is i(cid:374)terest i(cid:374) (cid:862)e(cid:374)ha(cid:374)(cid:272)ed oil re(cid:272)o(cid:448)ery(cid:863). These techniques reduce the interfacial tension between oil and water, allowing the oil to be released from the rock pores. Enhanced recovery can involve injecting chemical surfactants, and also steam, to lower the oil viscosity. Tar sands and oil shale are both intimate mixtures of semisolid organic material, with sand and clay, or sedimentary rock.