(EnergyAsia, February 25 2011, Friday) — US-based Stepan Co is converting Peter Cremer’s failed biodiesel plant on Singapore’s Jurong Island to produce surfactants for use in oilfields around the world.Stepan acquired the 100,000-tonne-per-year (t/y) methyl ester plant last year, and is doubling the capacity as part of its conversion work to be completed by next…