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You searched for: Author "Si, Hongyu" Remove constraint Author: "Si, Hongyu" Subject biomass Remove constraint Subject: biomass
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1. Pyrolysis of sawdust with various Fe-based catalysts: Influence of support characteristics on hydrogen-rich gas production

Author:
Si, Hongyu,   et al.   ; Yang, Shuangxia; Zhang, Xiaodong; Chen, Lei; Sun, Laizhi; Zhao, Baofeng; Xie, Xinping; Meng, Fanjun;     Show all 8 Authors
Source:
Journal of analytical and applied pyrolysis 2019 v.137 pp. 29-36
ISSN:
0165-2370
Subject:
X-ray diffraction; acidity; active sites; aluminum; aromatic compounds; biomass; carbon monoxide; catalysts; catalytic activity; differential thermal analysis; gas chromatography-mass spectrometry; hydrogen; hydrogen production; iron; oxidation; pyrolysis; sawdust; scanning electron microscopy; surface area; texture; thermogravimetry
Abstract:
... In the present study, we studied the hydrogen-rich gas production from catalytic pyrolysis of sawdust using various Fe-based catalysts derived from layered double hydroxide (LDH) precursor in a two-stage fixed-bed reactor. Specifically, we investigated the effect of support characteristics (Fe–Mg, Fe–Ca and Fe–Al) on the physicochemical properties and catalytic performances in relation to hydrogen ...
DOI:
10.1016/j.jaap.2018.10.021

2. Stoichiometric synthesis of Fe/CaxO catalysts from tailored layered double hydroxide precursors for syngas production and tar removal in biomass gasification

Author:
Si, Hongyu,   et al.   ; Zhang, Xiaodong; Yang, Shuangxia; Xie, Xinping; Chen, Lei; Sun, Laizhi; Zhao, Baofeng;     Show all 7 Authors
Source:
Journal of analytical and applied pyrolysis 2016 v.120 pp. 371-378
ISSN:
0165-2370
Subject:
X-ray diffraction; absorption; active sites; adsorption; alkalinity; biomass; calcium; calcium oxide; carbon dioxide; catalysts; catalytic activity; catalytic cracking; gas chromatography-mass spectrometry; gasification; hydrogen; iron; magnetite; particle size; phenolic compounds; pyrolysis; scanning electron microscopy; synthesis gas
Abstract:
... A series of bi-functional Fe/CaxO catalysts with different Ca/Fe molar ratios (2/1, 3/1, 4/1, 5/1) were prepared from tailored single-source CaxFe-LDHs precursors and applied to the thermo-chemical catalytic conversion of biomass. The results of catalyst characterization using XRD, SEM and CO2-TPD techniques indicate that the Fe load has a significantly influence on the composition, particle size, ...
DOI:
10.1016/j.jaap.2016.06.005

3. Effect of preparation method on structure characteristics and fast pyrolysis of biomass with Fe/CaO catalysts

Author:
Si, Hongyu,   et al.   ; Sun, Laizhi; Zhang, Xiaodong; Chen, Lei; Xie, Xinping; Yang, Shuangxia; Zhao, Baofeng;     Show all 7 Authors
Source:
Journal of analytical and applied pyrolysis 2015 v.116 pp. 183-189
ISSN:
0165-2370
Subject:
acids; aldehydes; biofuels; biomass; calcium oxide; catalysts; catalytic activity; hydrocarbons; iron; ketones; mass spectrometry; mixing; pyrolysis; pyrolysis gas chromatography
Abstract:
... The Fe/CaO catalysts were prepared by impregnation and mechanical mixing methods, named im-Fe/CaO and mix-Fe/CaO catalysts respectively. They were employed for fast pyrolysis of biomass by analytic pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) experiments. It was found that the im-Fe/CaO catalyst displayed better capabilities in improving the properties of bio-oils than the mix-Fe/CaO ...
DOI:
10.1016/j.jaap.2015.09.011

4. Comparison of catalytic upgrading of biomass fast pyrolysis vapors over CaO and Fe(III)/CaO catalysts

Author:
Si, Hongyu,   et al.   ; Zhang, Xiaodong; Sun, Laizhi; Chen, Lei; Xie, Xinping; Zhao, Baofeng; Meng, Guangfan;     Show all 7 Authors
Source:
Journal of analytical and applied pyrolysis 2014 v.108 pp. 35-40
ISSN:
0165-2370
Subject:
acids; aldehydes; aromatic hydrocarbons; biomass; calcium oxide; catalysts; furans; iron; ketones; mass spectrometry; moieties; phenols; pyrolysis; pyrolysis gas chromatography; synergism; vapors
Abstract:
... The CaO and Fe(III)/CaO catalysts were prepared and employed for catalytic upgrading of biomass fast pyrolysis vapors by pyrolysis-gas chromatography/mass spectrometry instrument (Py-GC/MS). It was found that the Fe(III)/CaO catalyst was effective in upgrading the biomass fast pyrolysis vapors by reducing the amount of oxygenated compounds. The Fe(III)/CaO catalyst displayed good capabilities to t ...
DOI:
10.1016/j.jaap.2014.05.020

5. High quality fuel gas from biomass pyrolysis with calcium oxide

Author:
Si, Hongyu,   et al.   ; Zhao, Baofeng; Zhang, Xiaodong; Chen, Lei; Sun, Laizhi; Chen, Guanyi;     Show all 6 Authors
Source:
Bioresource technology 2014 v.156 pp. 78-83
ISSN:
0960-8524
Subject:
adverse effects; biomass; calcium; calcium oxide; carbon dioxide; chromatography; electricity; fluidized beds; fuel production; fuels; heat; mass spectrometry; pyrolysis; sawdust
Abstract:
... The removal of CO2 and tar in fuel gas produced by biomass thermal conversion has aroused more attention due to their adverse effects on the subsequent fuel gas application. High quality fuel gas production from sawdust pyrolysis with CaO was studied in this paper. The results of pyrolysis–gas chromatography/mass spectrometry (Py–GC/MS) experiments indicate that the mass ratio of CaO to sawdust (C ...
DOI:
10.1016/j.biortech.2014.01.031