20+ Years of Global Experience
With passion and precision, we delivers advanced process technologies for recycling of waste / used lubricating oil, wastewater and coolants to clients across the globe — empowering industries to recover / regenerate resources with confidence while minimizing environmental impact of the recycling process.
Since 2006, Sequoia has successfully executed re-refining, projects across the Americas, Europe, Asia, and Australia. We are delivering superior return on investment through technologies like wiped-film evaporation and hydrogenation/hydrotreating of spent lubricants.
Our state-of-the-art proprietary technologies—including distillation, mechanical vapor compression, adsorption, and bauxite polishing—are engineered to deliver value from project concept to startup, ensuring high performance, safety, reliability, and long-term sustainability.
Our Expertise in Technologies
4 Most Important Technologies
Sequoia has an active research and development program that aims to keep Sequoia and its customers ahead of their competition.
- Falling-Film & Wiped Film Evaporation
- Hydrogenation of Oil & Fuels
- Distillation of Oil & Water
- Vapor Recompression