Patent ID: 9074150
Filing Date: 2015-07-07
Classification: C10J,C10K,Y02E,Y02P

Abstract:
1. A gasification treatment line for the thermochemical conversion of a wet feed into a synthesis gas having a defined H 2 /CO ratio, the gasification treatment line comprising: a wet feed comprising 10 to 40% water by weight relative to the weight of dry matter, or a very wet feed comprising more than 40% water by weight relative to the weight of dry matter, of a biological material such as coal, biomass or organic waste; a gasification device in fluid communication with the feed; a water-gas shift reactor downstream of the gasification device that includes water supply means; a first gas treatment device located downstream of the gasification device and upstream of the water-gas shift reactor; a second gas treatment device for final treatment of the synthesis gas located downstream of the water-gas shift reactor, and configured to withdraw a portion of the gas produced in the treatment line; a drying chamber integrated in line and upstream of the gasification device for pretreating the wet feed prior to its introduction into the gasification device, said drying chamber provided with a hot drying gas supply that includes withdrawal means located downstream of the first gas treatment device and upstream of the second gas treatment device; pressurizing means for recycling said portion of gas withdrawn from said withdrawal means into the drying chamber via the hot drying gas supply of the drying chamber, wherein said hot drying gas is at a temperature between 200 and 400° C.; and recycling means for recycling said drying gas laden with water after passing through the drying chamber into the treatment line downstream of the gasification device and upstream of the water-gas shift reactor to completely or partly supply the water-gas shift reactor with water.