A california company has announced plans to build more giant 2-ton bio-diesel reactors, elsewhere in the world:

SAN DIEGO, CALIF. (BUSINESS WIRE) Nov. 13, 2006 — Green Star Products, Inc. (US OTC: GSPI) today announced that it has signed an agreement with De Beers Fuel Limited of South Africa to build 90 biodiesel reactors.

Each of the biodiesel reactors will be capable of producing 10 million gallons of biodiesel each year for a total production capacity of 900,000,000 gallons per year when operating at full capacity, which is 4 times greater than the entire U.S. output in 2006.

A photo of the reactor is here. Green Star also just announced a US$140 million contract with Vietnam.

Incidentally, the Green Star site claims they build these giant reactors so their biodiesel plants will emit almost zero net Global Warming Gases. Coupled with the reduction from engine emissions, that seems to add up to a big total reduction:

It is an established fact that the use of biodiesel fuel in diesel engines will reduce CO(2) Global Warming Gases (by 78% on a life cycle basis)