Danisco Sweeteners Oy

Xyrofin Oy

Cultor Corporation

Göran Hyöky

Leena Rahkila

Heikki O Heikkila

Heikki Heikkilä

Olli-Pekka Eroma

Marja-Leena Sarkki

Heikki Ojamo

Päivi Sarmala

Tapio Timo Viljava

Hannu A Paananen

Jarmo Kuisma

Tapio Viljava

Marja Leena Sarkki

Effective processes are provided for the production of xylitol and ethanol and other products from solutions derived from lignocellulose-containing material in biomass. The solutions can be hydrolyzed or partially hydrolyzed before being fermented with microbes. The fermented solution can be distilled and can be subsequently separated, such as, by chromatographic separation, membrane separation, etc. The recovered xylitol solution can be crystallized to provide pure xylitol crystals.

Process for the simultaneous production of xylitol and ethanol

A method for fractionating a solution into two or more fractions by a chromatographic simulated moving bed (SMB) process, wherein the separation system comprises at least two separation profiles in the same loop.

Method for fractionating a solution

The invention relates to a process for the simultaneous production of xylitol and ethanol from a hydrolyzed lignocellulose-containing material starting. The starting material is fermented with a yeast strain, the ethanol produced is recovered, a chromatographic separation is carried out on the remaining xylitol solution, and pure xylitol is crystallized.

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Askainen, Finland

Göran Hyöky