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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: A three-stage gasifier separates the pyrolysis, combustion and gasification (reduction) steps. If all goes well, the result is low-tar gas (20-200 mg / Nm3). This laboratory gasifier has 4 modes of operation. 3 good, and 1 bad (which gives tarry gas, unavoidable during warmup). http://vems.hu/producergas/images/ThreeStageGasifier/ThreeStageReactor_test_6346_m.jpg The air must be preheated. Optimally min 400C or rather 500C. (using the exhaust heat and/or the producer gas heat in production). http://vems.hu/producergas/images/ThreeStageGasifier/Three-Phase-Gasifier_lightningport_airinput_6318_m.jpg At this occasion (not always!), the middle-burner burns even with 15C air input. http://vems.hu/producergas/images/ThreeStageGasifier/MiddleBurnerBurningWith20Cair_6341_m.jpg Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.