TY - JOUR
T1 - High molar mass polyethers as defoamers of heavy crude oil
AU - Cevada, E.
AU - Roos, K.
AU - Alvarez, F.
AU - Carlotti, S.
AU - Vázquez, F.
N1 - Publisher Copyright:
© 2018
PY - 2018/6/1
Y1 - 2018/6/1
N2 - The presence of foam in the petroleum industry causes many problems in gas-liquid separators and its complete elimination, by employing a silicon-free defoamer agent, poses a significant challenge. In this research, a series of high molar masses polyethers was synthesized using different epoxide monomers (1,2-propylene oxide PO, 1,2-butylene oxide BO, 1,2-hexylene oxide HO and 1,2-dodecylene oxide DDO), varying their molar masses from 10,000 to 120,000 g/mol. The synthesis was performed by anionic ring-opening polymerization (AROP) using as initiation system an ammonium salt and triisobutylaluminum as complexing agent and monomer activator. All polymers were characterized by 1H NMR, SEC and TGA, experimentally evaluated as defoamer agents of gasified heavy crude oil (13.08 °API) and compared to a silicon based defoamer. Results revealed that PBO and PHO with molar masses above 80,000 g/mol show high activity as foam suppressors, similar to that of commercial silicon based defoamer agents.
AB - The presence of foam in the petroleum industry causes many problems in gas-liquid separators and its complete elimination, by employing a silicon-free defoamer agent, poses a significant challenge. In this research, a series of high molar masses polyethers was synthesized using different epoxide monomers (1,2-propylene oxide PO, 1,2-butylene oxide BO, 1,2-hexylene oxide HO and 1,2-dodecylene oxide DDO), varying their molar masses from 10,000 to 120,000 g/mol. The synthesis was performed by anionic ring-opening polymerization (AROP) using as initiation system an ammonium salt and triisobutylaluminum as complexing agent and monomer activator. All polymers were characterized by 1H NMR, SEC and TGA, experimentally evaluated as defoamer agents of gasified heavy crude oil (13.08 °API) and compared to a silicon based defoamer. Results revealed that PBO and PHO with molar masses above 80,000 g/mol show high activity as foam suppressors, similar to that of commercial silicon based defoamer agents.
KW - Crude oil
KW - Defoamer agent
KW - High molar mass polyethers
UR - http://www.scopus.com/inward/record.url?scp=85042407725&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2018.02.136
DO - 10.1016/j.fuel.2018.02.136
M3 - Artículo
AN - SCOPUS:85042407725
SN - 0016-2361
VL - 221
SP - 447
EP - 454
JO - Fuel
JF - Fuel
ER -