Life Cycle Energy and Environment Assessment of Gasoline and Its Alternative Fuels

TLDR: In this article, the authors established the life cycle energy consumption and environment emission assessment model of conventional gasoline and its alternative fuels and proposed a life cycle and environment assessment model for conventional gasoline.

Abstract: Life cycle energy consumption and environment emission assessment model of conventional gasoline and its alternative fuels is established in this paper.And,external cost of net energy yield(ECNEY),an indictor to link life cycle energy consumption and environmental pollutant emissions of conventional gasoline,ethanol,methanol,liquefied petroleum gas(LPG),liquefied natural gas(LNG) and compressed natural gas(CNG),is put forward.Then,life cycle energy and environment assessment of conventional gasoline and its alternative fuels is made.Compared with conventional gasoline,ethanol(from wheat,maize,and cassava) and methanol from coal achieve higher ECNEY,whereas,methanol from natural gas,LPG,LNG,and CNG achieve lower ECNEY.From the perspective of reducing ECNEY,methanol from natural gas,LPG,LNG,and CNG are proposed to be chosen first as gasoline alternative fuels in China.