NREL is developing energy-efficient technologies to reduce separation costs and address long-standing separation challenges in the geothermal industry.
On average, separations account for 20%–40% of production cost and dominate energy consumption in chemical and mining processes.
Our areas of separation science research include:
- Advanced mineral separation technologies
- Nonthermal dewatering technologies
- Purification of bioproducts from fermentations
- Purification of natural products from plant extracts
- In situ product recovery from fermentations and chemical reactions
- Gas phase separations.
- Counter current chromatography
- Simulated moving bed chromatography
- Ion exchange and continuous ion exchange
- Dynamic membranes and membrane systems
- Continuous liquid liquid extraction
- Supercritical fluid-driven extractions and separations
- Energy, operating expense, capital expense, and greenhouse gas footprint analysis
In Situ Product Recovery of Bio-Based Ethyl Esters via Hybrid Extraction-Distillation, Green Chemistry (2019)
Reducing Energy, Solvent, and Resin Demand of Sorption-Based Processes for Carboxylic Acid Recovery, American Institute of Chemical Engineers Annual Meeting (2019)
In Situ Recovery of Bio-Based Carboxylic Acids, Green Chemistry (2018)
Post-Fermentation Recovery of Biobased Carboxylic Acids, ACS Sustainable Chemistry & Engineering (2018)
View all NREL publications about geothermal research.
Senior Chemical EngineerEric.Karp@nrel.gov