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Case Study: Whitefox ICE at Pacific Ethanol, Madera, California

Pacific Ethanol Madera is a 40 mmgy Delta-T design. The Whitefox ICE system directly dehydrates the molecular sieve regenerate stream (MSU regen) to US fuel grade ethanol, rather than sending it back to the rectifier column, as shown in Fig. 2. The Whitefox ICETM system dehydrates from 60-75 vol% to >99.0 vol% in a single continuous pass with no regeneration of the membranes.

Pacific Ethanol

Madera, California

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Benefits

  • Capacity increase: 15%
  • Reduction in Natural Gas: 800 – 1,000 BTU/gal (223 – 279 kJ/Litre)
  • Reduction in Cooling Water: 800 – 1,000 BTU/gal (223 – 279 kJ/Litre)
  • Reduction in Carbon Intensity score: 1 CI point
  • Fluctuations removed in rectifier column
  • Distillation & dehydration debottlenecked
  • Overall improvements in plant operation & efficiency

Specification

Location: Madera, CA

Plant design: Delta - T

Feedstock: Corn

Application: Biofuels (U.S. Fuel Grade)

Nameplate Capacity: 40MMGPY (151 MMLPY)

Whitefox ICE® Design Capacity: 18,000 std GPD (68,100 std LPD)

Project Status: Started-up in Q4 2016