Green Touch Builders | Company selling mini-refinery technology for natural gas
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Company selling mini-refinery technology for natural gas

Sacramento-based Greyrock Energy has moved from proving its technology to selling its systems.

The company developed technology that allows relatively small refining plants to convert natural gas into diesel fuel, which means more fuel is saved and greenhouse gases are reduced.

Small is a relative term. The Greyrock system requires nearly two acres of land, but it replicates the process of otherwise massive refineries that sprawl over a hundred acres.

The 2006 startup developed its technology…