Gasification of Greek lignite in an indirect heat (allothermal) rotary kiln gasifier

Androutsopoulos, GP; Hatzilyberis, KS; Theofilou, NA; Agalianos, DS; Chronis, CG; Kapassakalis, VN; Karsakos, AG; Katsaros, AN; Stamatakis, CP; Zissis, CL

dc.contributor.author	Androutsopoulos, GP	en
dc.contributor.author	Hatzilyberis, KS	en
dc.contributor.author	Theofilou, NA	en
dc.contributor.author	Agalianos, DS	en
dc.contributor.author	Chronis, CG	en
dc.contributor.author	Kapassakalis, VN	en
dc.contributor.author	Karsakos, AG	en
dc.contributor.author	Katsaros, AN	en
dc.contributor.author	Stamatakis, CP	en
dc.contributor.author	Zissis, CL	en
dc.date.accessioned	2014-03-01T01:19:00Z
dc.date.available	2014-03-01T01:19:00Z
dc.date.issued	2003	en
dc.identifier.issn	0098-6445	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15318
dc.subject	Allothermal gasification	en
dc.subject	IGCC system	en
dc.subject	Lignite conversion	en
dc.subject	Rotary kiln	en
dc.subject	Synthesis gas	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Coal gasification	en
dc.subject.other	Energy conversion	en
dc.subject.other	Energy efficiency	en
dc.subject.other	Environmental protection	en
dc.subject.other	Fluidized beds	en
dc.subject.other	Pulverized fuel	en
dc.subject.other	Rotary kilns	en
dc.subject.other	Thermoelectric power plants	en
dc.subject.other	Gasifiers	en
dc.subject.other	Lignite	en
dc.subject.other	gasification	en
dc.title	Gasification of Greek lignite in an indirect heat (allothermal) rotary kiln gasifier	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/00986440302165	en
heal.identifier.secondary	http://dx.doi.org/10.1080/00986440302165	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	This work reports the performance results of a pilot-size lignite gasification plant. The feed material was Greek lignite (Megalopolis), currently being employed for electricity generation in pulverized lignite-fired thermoelectric stations. Low energy conversion efficiency, low station availability, and environmental issues call for developing improved processes, e.g., an IGCC (Integrated Gasification Combined Cycle). An indirect heat (allothermal) rotary kiln was selected as the lignite gasification reactor for developing an overall gasification process of improved efficiency. Weeklong gasification runs, at near atmospheric pressure and maximum temperature in the range 900-950degreesC, validated high DAF lignite conversions, i.e., 90-95%, and the production of a medium heating value synthesis gas (i.e., 11-13 MJ/Nm(3) dry basis), despite the use of air for burning recycled product gas for process heating. Gas composition is equivalent to that of autothermal gasifiers (e.g., Lurgi, Winkler, Koppers-Totzek), which operate on oxygen, under pressure and strict moisture and particle size specifications. Similarly, the kiln gas is comparable to that of an allothermal, high-pressure, fluidized bed gasifier running with a high rank coal feed. The data indicate satisfactory gasification efficiency and a good thermal efficiency that should be improved further through heat integration of a scaled-up process based on an indirect heat rotary kiln gasifier.	en
heal.publisher	TAYLOR & FRANCIS LTD	en
heal.journalName	Chemical Engineering Communications	en
dc.identifier.doi	10.1080/00986440302165	en
dc.identifier.isi	ISI:000184793400007	en
dc.identifier.volume	190	en
dc.identifier.issue	9	en
dc.identifier.spage	1200	en
dc.identifier.epage	1232	en