Pyrolysis of lignin biomass-novolac resin for the production of polymeric carbon adsorbents

Simitzis, J; Sfyrakis, J

dc.contributor.author	Simitzis, J	en
dc.contributor.author	Sfyrakis, J	en
dc.date.accessioned	2014-03-01T01:09:31Z
dc.date.available	2014-03-01T01:09:31Z
dc.date.issued	1993	en
dc.identifier.issn	0165-2370	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11051
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027633856&partnerID=40&md5=40365b356ae2f09670c639b3aeb5ad96	en
dc.subject	Carbon adsorbents	en
dc.subject	Klason lignin	en
dc.subject	novolac resin	en
dc.subject	olive stone biomass	en
dc.subject	pyrolysis.	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.classification	Spectroscopy	en
dc.subject.other	Carbonaceous adsorbents	en
dc.subject.other	Infrared spectroscopy	en
dc.subject.other	Lignin	en
dc.subject.other	Discoloring ability	en
dc.subject.other	KLHP-N	en
dc.subject.other	KLHP-OS	en
dc.subject.other	Polymeric carbon adsorbents	en
dc.subject.other	Pyrolysis	en
dc.title	Pyrolysis of lignin biomass-novolac resin for the production of polymeric carbon adsorbents	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	Carbonaceous adsorbents, based on Klason lignin isolated from olive stone biomass and novolac resin, were prepared. Four groups of materials were used as raw materials and were then cured, pyrolyzed (in an N2 stream up to 1000-degrees-C) and in some cases activated (with a water vapour at 930-degrees-C): (1) Klason lignin hydroxymethylated and phenolated (KLHP); (2) Klason lignin hydroxymethylated and phenolated combined with pressed olive stones (KLHP-OS); (3) Klason lignin hydroxymethylated and phenolated combined with novolac resin (KLHP-N); (4) 93% w/w of novolac prepared in presence of 7% wt/wt of Klason lignin (N-KL) and then mixed with pressed olive stones (N-KL-OS). The weight losses and shrinkages of raw materials during pyrolysis, the FT-IR spectra of raw materials and of end-products, and the specific surface area of end-products and their discolouring ability using aqueous solution of methylene blue, were determined. The combination of such materials can improve the characteristics of end-products (e.g. higher specific surface area and discolouring ability) or the processing characteristics (e.g. lower weight losses and shrinkages of materials during pyrolysis). Also, the participation of lignin in reactions with phenol was determined. Such materials, especially KLHP-N with an excess of novolac and secondarily KLHP-OS with an excess of olive stones, show interesting potential as raw materials for the production of polymeric carbon adsorbents.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Analytical and Applied Pyrolysis	en
dc.identifier.isi	ISI:A1993LP51200004	en
dc.identifier.volume	26	en
dc.identifier.issue	1	en
dc.identifier.spage	37	en
dc.identifier.epage	52	en