TY - JOUR
T1 - Henry’s constants for ethanol, iso-octane and gasoline absorption in engine lubricants
AU - Sodré, José Ricardo
AU - Ribeiro, Kamilla de Lima
PY - 2015/6/1
Y1 - 2015/6/1
N2 - Henry’s constants for hydrous ethanol, iso-octane and gasoline absorption in engine lubricants were determined using gas chromatography. Samples of synthetic SAE 5W30, synthetic SAE 5W40, semi-synthetic SAE 15W40, mineral SAE 15W40 and mineral SAE 25W60 oil were used in the experiments. For all lubricants tested, typical molecular weights were considered, ranging from 500 to 5000 kg/kmol. The results show that, for any lubricant, Henry’s constant for hydrous ethanol is about 2.2 times higher than that of gasoline, and about 4.3 times higher than that of iso-octane. Decreasing Henry’s constant was observed with increasing lubricant molecular weight, regardless of the fuel type.
AB - Henry’s constants for hydrous ethanol, iso-octane and gasoline absorption in engine lubricants were determined using gas chromatography. Samples of synthetic SAE 5W30, synthetic SAE 5W40, semi-synthetic SAE 15W40, mineral SAE 15W40 and mineral SAE 25W60 oil were used in the experiments. For all lubricants tested, typical molecular weights were considered, ranging from 500 to 5000 kg/kmol. The results show that, for any lubricant, Henry’s constant for hydrous ethanol is about 2.2 times higher than that of gasoline, and about 4.3 times higher than that of iso-octane. Decreasing Henry’s constant was observed with increasing lubricant molecular weight, regardless of the fuel type.
KW - Henry’s constant
KW - Internal combustion engines
KW - Lubricants
UR - http://www.scopus.com/inward/record.url?scp=84901904465&partnerID=8YFLogxK
UR - https://onlinelibrary.wiley.com/doi/full/10.1002/ls.1272
U2 - 10.1002/ls.1272
DO - 10.1002/ls.1272
M3 - Article
AN - SCOPUS:84901904465
SN - 0954-0075
VL - 27
SP - 231
EP - 239
JO - Lubrication Science
JF - Lubrication Science
IS - 4
ER -