Lignin monomer conversion into biolubricant base oils
- Univ. of Delaware, Newark, DE (United States). Catalysis Center for Energy Innovation (CCEI); OSTI
- Univ. of Delaware, Newark, DE (United States). Catalysis Center for Energy Innovation (CCEI)
- Univ. of Delaware, Newark, DE (United States). Catalysis Center for Energy Innovation (CCEI); Tianjin Univ. (China)
Despite progress in the depolymerization of lignin, only a few studies convert the obtained monomers to value-added products. Here we introduce a strategy to synthesize branched benzene lubricant (BBL) and branched cyclic lubricant (BCL) base oils from lignin-derived monomers and aldehyde. We perform carbon–carbon coupling via Brønsted acid-catalyzed hydroxyalkylation/alkylation (HAA) then hydrodeoxygenation (HDO). Optimum HAA reaction conditions achieve up to 90% guaiacol conversion and an HAA product containing 76% BBL and 24% enal condensation product over a P-SiO2 catalyst. Subsequent HDO of HAA products over an Ir-ReOx/SiO2 catalyst produces a lubricant-ranged mixture of BCL (C24) up to yield (82%) and small fractions of dodecyl cyclohexane and C10 and C15 carbons alkanes. The kinematic viscosity, viscosity index, and Noack volatility of these base oils are comparable to commercial petroleum-derived poly α-olefin Group IV and refrigerant base oils. In conclusion, this approach provides a sustainable pathway for replacing petroleum-derived base oils.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Catalysis Center for Energy Innovation (CCEI); Univ. of Delaware, Newark, DE (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0001004
- OSTI ID:
- 1978795
- Alternate ID(s):
- OSTI ID: 1832650
- Journal Information:
- Green Chemistry, Journal Name: Green Chemistry Journal Issue: 24 Vol. 23; ISSN 1463-9262
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Branched Bio-Lubricant Base Oil Production through Aldol Condensation
Engineered $\mathrm{Ru}$ on $\mathrm{HY}$ zeolite catalyst for continuous and selective hydrodeoxygenation of lignin phenolics to cycloalkanes under moderate conditions
Journal Article
·
Sun Sep 29 20:00:00 EDT 2019
· ChemSusChem
·
OSTI ID:1767533
Engineered $\mathrm{Ru}$ on $\mathrm{HY}$ zeolite catalyst for continuous and selective hydrodeoxygenation of lignin phenolics to cycloalkanes under moderate conditions
Journal Article
·
Thu Feb 29 19:00:00 EST 2024
· Applied Catalysis. A, General
·
OSTI ID:2322501