Adding gas from biomass to the gas grid - SGC

• Kärnten (Austria)pyrolysis:Process name:Capacity:FeedProductWasteTHERMOGENICSThermogenics0.3 - 6 MWthany solid organic materiallow calorific syngasno gaseous wasteThe Thermogenics gasifier is able to produce a low calorific syngas to run standard internal combustionengines driving electric generators or as fuel for steam or hot water boilers. Because of this capability andbecause the gasifier can operate between 0.3 - 6 MWth, the conversion of a wide range of solid wastes toenergy becomes practical and economically viable. The process is environmentally sound since there areno waste gases vented to the atmosphere. The ability to operate over a wide capacity range and with manydifferent feedstocks makes the production of energy possible for rural areas in underdeveloped countriesnot served by a national power grid.The Thermogenics gasifier can handle almost any solid or semi-solid organic feedstock, which by itself or incombination has a heating value of 2,800 kcal per kg or more. Feedstocks that have been tested orconsidered include: sorted municipal and commercial waste, shredded paper, wood waste, dewateredsewage sludge, scrap tires, agricultural waste, paint sludge, oil field wastes and hydrocarbon contaminatedsoils.Depending on the nature of the feedstock, either low-calorific gas for energy production (electricity or steam)can be produced or a range of by-products such as carbon black, diesel fuel and asphalt materials (fromtires); ammonia (from many feedstocks); liquefied gases such as hydrogen, nitrogen, carbon dioxide (frommany feedstocks) and various other compounds.A schematic overview of the process is shown in figure 23.Three models are commercially available: the 103, 104 and 106 systems. Global performance is shown intable 71 for wood waste as biomass.Higher performance can be reached with feedstocks like shredded plastics and shredded tires.page: 140