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US 11,377,792 B2Granted
Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials
AssigneePierson Capital Environmental (Beijing) Limited
InventorFeng Ling
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Abstract
Provided herein are compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.
Claims20
A method for recovering organic acids from high water content organic acids solutions by multi-column distillation, comprising the steps of:
- a) providing a multi-column distillation system to recover the organic acids, and
- b) feeding fresh direct steam only into the first column of the multi-column distillation system, and
- c) providing steam to subsequent columns from the vapors released from previous columns sequentially, and
- d) feeding one or more streams of high water content organic acids solutions into different columns within the multi-column system to balance the energy requirements for the columns comprising the distillation system, and
- e) adjusting the content of the organic acids in the condensate of the first column to minimize fresh steam consumption, and
- f) recycling the total organic acids and the total waters discharged from the multi-column distillation system.
3 more elements
Dependencies are inferred from the claim text.