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Extraction of Bioproducts from Algae in Water using Cavitating Jets

Award Information

Department of Commerce
National Oceanic and Atmospheric Administration
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Dynaflow, Inc.
10621-J Iron Bridge Rd. Jessup, MD 20794-9381
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: Extraction of Bioproducts from Algae in Water using Cavitating Jets
Agency / Branch: DOC / NOAA
Contract: WC133R-11-CN-151
Award Amount: $95,000.00


One of the most promising biomass sources for fuels and other feedstocks is photosynthetic algae. Algae can produce lipids, proteins, and other compounds, and can be grown in salt water. Current production practices rely on expensive means of harvesting, concentrating, and extracting the algae. This makes the “bio-crude” produced by algae more expensive than petroleum. Recovering the cellular contents of the algae directly from the growth media would reduce production costs and improve profitability. This proposal is to develop a method for lysing the algae and recovering the bio-crude without pre-concentrating or dewatering. Hydrodynamic cavitation using submerged jets uses fluid shear flow to create high pressure fluctuations in the shear layer to cause bubbles to grow and collapse using a fraction of the energy required for ultrasonic cavitation. Cavitation has been shown to have the capability to rupture algal cell membranes and release the cell contents. Cavitating jets also create clouds of fine bubbles that can attach to lipids in the water and lift them to the surface. By controlling the creation and collection of the resulting foam the lipids can be concentrated and recovered from the growth media with minimal energy input.

Principal Investigator:

Gregory Loraine
Sr.Research Scientist
(301) 604-3688

Business Contact:

Georges L. Chahine
(301) 604-3688
Small Business Information at Submission:

Dynaflow, Inc.
10621-J Iron Bridge Road Jessup, MD 20794-9381

EIN/Tax ID: 521573410
Number of Employees:
Woman-Owned: Yes
Minority-Owned: Yes
HUBZone-Owned: No