BROWSE

Related Scientist

ryoo,ryong's photo.

ryoo,ryong
나노물질및화학반응연구단
more info

ITEM VIEW & DOWNLOAD

Upgrading of bio-oil derived from biomass constituents over hierarchical unilamellar mesoporous MFI nanosheets

Cited 50 time in webofscience Cited 52 time in scopus
1,656 Viewed 342 Downloaded
Title
Upgrading of bio-oil derived from biomass constituents over hierarchical unilamellar mesoporous MFI nanosheets
Author(s)
Hyung Won Lee; Sung Hoon Park; Jong-Ki Jeon; Ryong Ryoo; Wookdong Kim; Dong Jin Suh; Young-Kwon Park
Subject
Aluminum, ; Aromatic compounds, ; Aromatization, ; Biofuels, ; Catalyst activity, ; Cellulose, ; Ketones, ; Lignin, ; Nanosheets, ; Organic pollutants, ; Pyrolysis, ; Temperature programmed desorption, ; Transmission electron microscopy, ; X ray diffraction, ; Adsorption desorption, ; Biomass constituents, ; Catalytic upgrading, ; Hemicellulose, ; Lignocellulosic biomass, ; Mesoporous, ; Mesoporous catalysts, ; Product distributions, ; Mesoporous materials
Publication Date
2014-09
Journal
CATALYSIS TODAY, v.232, pp.119 - 126
Publisher
ELSEVIER SCIENCE BV
Abstract
tUnilamellar mesoporous MFI nanosheets (UMNs) were, for the first time, applied to the catalytic pyrol-ysis of the constituents of lignocellulosic biomass: cellulose, hemicellulose and lignin. A representativemesoporous catalyst, Al-SBA-15, was also applied to the same process for the purpose of comparison. Thecatalysts were characterized by N2adsorption–desorption, X-ray diffraction, temperature programmeddesorption of ammonia, and transmission electron microscopy. The synthesized UMN catalyst was com-posed of a random assembly of zeolite nanosheets with a thickness of 2.5 nm. UMN was shown to havestrong Brønsted acid sites, whereas Al-SBA-15 had weak acid sites. Catalytic pyrolysis experiments werecarried out using Py-GC/MS. The product distribution was analyzed in order to evaluate catalytic activity.Acidity had a considerable influence on catalytic activity; UMN, with a higher acidity than Al-SBA-15,exhibited higher activities for cracking and deoxygenation, producing bio-oil with a lower oxygen con-tent and with a better overall quality. Levoglucosan, which was the main product of the non-catalyticpyrolysis of cellulose, was converted to aromatics and furans on the acid sites of the catalysts. Ketones,alcohols and cyclo-compounds, the main products of the non-catalytic pyrolysis of xylan, were also con-verted to aromatics and furans by catalytic upgrading. The main products of the non-catalytic pyrolysisof lignin were phenolics, which were converted to aromatics and lighter phenolics (alkyl phenolics andmethoxy phenolics) in the presence of catalysts. Increasing the catalyst dose improved the quality of theproduct oil even further.
URI
https://pr.ibs.re.kr/handle/8788114/1551
DOI
10.1016/j.cattod.2013.12.015
ISSN
0920-5861
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
273_Catalysis Today_232-119_2014.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse