Global Bioenergies and Clariant announce first isobutene production from wheat straw hydrolysate

September 28, 2016 |

In France, Global Bioenergies and Clariant are proud to announce the first isobutene production from a wheat straw hydrolysate, in the industrial pilot of Pomacle Bazancourt. This success is the result of a collaboration initiated more than 18 months ago, and has been made possible by combining Clariant’s proprietary process, allowing for the conversion of agricultural residues into sugar-rich hydrolysates, with Global Bioenergies’ proprietary process for the production of isobutene from various industrial-grade sugars.

Clariant has produced the wheat straw hydrolysate, rich in non food/non feed second generation sugar, in its Straubing facility in Germany. This hydrolysate was converted into renewable isobutene in Global Bioenergies’ industrial pilot operated by ARD in its Pomacle-Bazancourt facility. This result demonstrates the maturity, the complementarity, and the versatility of the two proprietary processes.

Clariant has developed a process allowing for the extraction of sugars from agricultural residues. These so called « second generation » (2G) sugars are produced as hydrolysates. Clariant’s Pre-commercial plant of Straubing (Germany) can provide large amounts of such sugars and transforms them into ethanol using the sunliquid® process, with a capacity of 1000 tons ethanol output per year. The production of isobutene opens the door for a more general use of 2G sugars, beyond the ethanol market.

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