| INBICON A/S Patent applications |
| Patent application number | Title | Published |
|---|
| 20120122174 | Non-sterile fermentation of bioethanol - A range of concentrations exists in which fermentation inhibitors derived from pretreatment of lignocellulosic feed stocks inhibit growth of lactic acid bacteria without affecting fermentive yeast. By optimizing levels of fermentation inhibitors to fall within this range, yeast fermentations of lignocellulosic biomass can be conducted under non-sterile conditions with ethanol yields comparable to those achieved under sterile conditions. Optimised inhibitor levels can be achieved by controlling the water/biomass ratio of a lignocellulosic biomass during and after pretreatment, for example by washing the fiber fraction of a previously pretreated lignocellulosic biomass with a pre-defined amount of fresh water or recycled process solutions. Crude extracts of liquid fraction or process solutions from pretreatment of lignocellulosic biomass can also provide an effective anti-baterial treatment for first generation starch fermentations. | 05-17-2012 |
| 20110308141 | Methods and devices for continuous transfer of particulate and/or fibrous material between two zones with different temperatures and pressures - Continuous transfer of particulate material into pressurized steam reactors is provided by “flow feeder” methods and devices. Material such as lignocellulosic biomass feedstocks are compacted into a “low density” plug, <700 kg/m3, which provides a dynamic seal against pressurized steam through exploitation of a steam condensation zone. The rate at which the steam condensation zone moves into the “low density” plug is offset by the rate at which compacted material is fed into the pressurized reactor. Preferred devices compact material within a flow feeder chamber by use of a loading device that works against counter-pressure provided by an unloading device. Compacted material is actively disintegrated and fed into the reactor by the unloading device. In preferred embodiments, compacted material is fed in a steady-state operation in which the interface between the steam condensation zone and the low pressure inlet zone remains stationary within the flow feeder chamber. | 12-22-2011 |
| 20110275131 | METHODS OF PROCESSING ENSILED BIOMASS - The invention relates to methods of processing ensiled biomass for production of bioethanol or other fermentation products and, in particular, to methods that do not require expensive pretreatment (e.g. heat or chemical pretreatment). | 11-10-2011 |
