The grant -- largest of several announced by Connecticut late last year -- is part of the state’s production facility program to support biodiesel production.

Greenleaf’s grant is underwritten by Connecticut’s Department of Economic and Community Development (DECD) and administered through the Connecticut Center for Advanced Technology.

“Projects such as this biodiesel facility and companies like Greenleaf are critical components to the state’s economic future,” said Joan McDonald, commissioner of DECD and chair of Connecticut Innovations.

When