Blar i Institutt for energi og prosessteknikk på forfatter "Wang, Liang"
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A kinetic study on simultaneously boosting the mass and fixed-carbon yield of charcoal production via atmospheric carbonization
Alonso, Maria Zabalo; Tran, Quang Khanh; Wang, Liang; Skreiberg, Øyvind (Journal article; Peer reviewed, 2017)The mass and fixed-carbon yield of charcoal produced from woody biomass via atmospheric carbonization can be simultaneously improved by harnessing the phenomenon of secondary char formation as a result of prolonged contact ... -
A thermogravimetric and kinetic study on devolatilization of biomass
Nguyen Cong, Thanh (Master thesis, 2018)The pyrolysis characteristics of spruce wood and birch wood, both of two different particle sizes: 0.063-0.1 mm and 0.2-0.3 mm were investigated using thermogravimetric analyzer. The pyrolysis process was subdivided into ... -
A thermogravimetric and kinetic study on devolatilization of woody biomass
Zabalo Alonso, María (Master thesis, 2016)Biomass is a promising energy resource for a more sustainable global energy outlook. Thermochemical conversion of biomass is a very attractive and important technology for energy generation and production of value-added ... -
An evaluation of effects of fuel parameters and flue gas recirculation on NOx emissions through detailed chemical kinetics simulations
Skreiberg, Øyvind; Li, Tian; Wang, Liang; Bugge, Mette; Løvås, Terese (Journal article; Peer reviewed, 2019)In this work the effects of fuel parameters and under grate flue gas recirculation (FGR) are investigated when applying staged air combustion of solid fuel for the purpose of NOx reduction. In addition to temperatures, ... -
An evaluation of effects of operational parameters on NOx emissions through detailed chemical kinetics simulations
Skreiberg, Øyvind; Li, Tian; Vantaggiato, Elettra; Wang, Liang; Bugge, Mette; Løvås, Terese (Journal article; Peer reviewed, 2019)NOx emissions from biomass and Municipal Solid Waste (MSW) combustion is a great concern. Technologies for reducing NOx emissions based on flue gas cleaning using e.g. Selective Non-Catalytic Reduction (SNCR) or Selective ... -
An SEM-EDX Study of Forest Residue Chars Produced at High Temperatures and High Heating Rate
Wang, Liang; Li, Tian; Matas, Berta Güell; Løvås, Terese; Sandquist, Judit (Journal article; Peer reviewed, 2015)This work investigated morphology, structure and chemical transformation of forest residue chars devolatilized in a drop tube reactor at high heating rates and high temperature conditions. Produced forest residue chars ... -
Biomass Charcoal Properties Changes during Storage
Wang, Liang; Barta-Rajnai, Eszter; Hu, Kathryn; Higashi, Charissa; Skreiberg, Øyvind; Grønli, Morten; Czégény, Zsuzsanna; Jakab, Emma; Myrvågnes, Viktor; Várhegyi, Gabor; Antal, Michael Jerry (Journal article; Peer reviewed, 2017)In this work, effects of storage time and conditions on the properties of one woody charcoal were studied. Prior to the storage test, the untreated charcoal was characterized by thermogravimetry/mass spectrometry (TG/MS). ... -
Carbonization pressure influence on fixed carbon yield
Skreiberg, Øyvind; Wang, Liang; Bach, Quang Vu; Grønli, Morten (Journal article; Peer reviewed, 2018)Biocarbon, or charcoal, is receiving increased attention as an increasingly important reductant in metallurgical industries, and has as well many others uses, e.g. as high quality fuel or as activated carbon. Traditional ... -
CHARCOAL PRODUCTION FROM FOREST RESIDUES
Wang, Liang; Higashi, Charissa; Skreiberg, Øyvind; Grønli, Morten; Antal, Michael Jerry (Journal article; Peer reviewed, 2015)The carbonization behaviors of spruce wood and its forest residue at different conditions were studied in this work. A standard proximateanalysis procedure delivered the lowest charcoaland fixed-carbon yields. Sample ... -
CO2 Gasification of Charcoals in the Context of Metallurgical Application
Bui, Hau-Huu; Wang, Liang; Tran, Khanh-Quang; Skreiberg, Øyvind; Luengnaruemitchai, Apanee (Journal article; Peer reviewed, 2017)The CO2 gasification reactivity of Norwegian spruce charcoals from stem wood and its forest residue produced at different pressures was investigated in the present study. The gasification behavior was analyzed thermograv ... -
CO2 Gasification of Charcoals Produced at Various Pressures
Bui, Hau-Huu; Wang, Liang; Tran, Khanh-Quang; Skreiberg, Øyvind (Journal article; Peer reviewed, 2016)In this work, stem wood and branches and tops of Norwegian spruce and birch were carbonized at different pressures, producing charcoals of which the CO2 gasification reactivity was studied by means of a thermogravimetric ... -
CO2 Gasification of Chars Prepared by Fast and Slow Pyrolysis from Wood and Forest Residue: A Kinetic Study
Wang, Liang; Li, Tian; Várhegyi, Gábor; Skreiberg, Øyvind; Løvås, Terese (Journal article; Peer reviewed, 2017)The CO2 gasification of chars was investigated by thermogravimetric analysis (TGA). The chars were prepared from spruce and its forest residue. Prior to the gasification, the raw materials were pelletized and pulverized. ... -
CO2 reactivity assessment of woody biomass biocarbons for metallurgical purposes
Wang, Liang; Hovd, Benedicte; Bui, Hau-Huu; Valderhaug, Aasgeir Mikael; Videm Buø, Therese; Birkeland, Rolf Gunnar; Skreiberg, Øyvind; Tran, Khanh-Quang (Journal article; Peer reviewed, 2016)Replacing the use of fossil reductants with biocarbons in metallurgical industries has a great potential with respect to reducing CO2 emissions and the contribution from this industry to the increasing greenhouse gas effect. ... -
COMBUSTION CHARACTERISTICS OF BIOMASS CHARCOAL PRODUCED AT DIFFERENT CARBONIZATION CONDITIONS
Wang, Liang; Várhegyi, Gabor; Skreiberg, Øyvind; Grønli, Morten; Antal, Michael Jerry (Journal article; Peer reviewed, 2015)The combustion properties of spruce chars and spruce forest residue chars were studied in the kinetic regime by a series of TGA experiments. The work aimed at establishing how the pressure of the char preparation affects ... -
Comparative study on the thermal behavior of untreated and various torrefied bark, stem wood, and stump of Norway spruce
Barta-Rajnai, Eszter; Wang, Liang; Sebestyén, Zoltán; Barta, Zsolt; Khalil, Roger Antoine; Skreiberg, Øyvind; Grønli, Morten; Jakab, Emma; Czégény, Zsuzsanna (Journal article; Peer reviewed, 2017)In this work, the torrefaction of different parts of Norway spruce (stem wood, bark, and stump) was studied. Three different torrefaction temperatures were applied: 225, 275, and 300 °C with 30 and 60 min isothermal periods. ... -
Comprehensive Compositional Study of Torrefied Wood and Herbaceous Materials by Chemical Analysis and Thermoanalytical Methods
Barta-Rajnai, Eszter; Jakab, Emma; Sebestyén, Zoltán; May, Zoltán; Barta, Zsolt; Wang, Liang; Skreiberg, Øyvind; Grønli, Morten; Bozi, Janos; Czégény, Zsuzsanna (Journal article; Peer reviewed, 2016)In this work, the torrefaction of three biomass materials, black locust wood, wheat, and rape straw, was studied at various temperatures: 200, 225, 250, 275, and 300 °C. The thermal stability and formation of the decomposition ... -
Effect of additives in reducing ash sintering and slagging in biomass combustion applications
Wang, Liang (Doktoravhandlinger ved NTNU, 1503-8181; 2012:254, Doctoral thesis, 2012)The objective of this study was to investigate sintering and slagging behaviors of biofuels during combustion processes. Biofuels tested are derived from the agricultural sector, wood and furniture industry as well as from ... -
EFFECT OF STORAGE TIME AND CONDITIONS ON BIOMASS CHARCOAL PROPERTIES
Wang, Liang; Hu, Kathryn; Higashi, Charissa; Skreiberg, Øyvind; Myrvågnes, Viktor; Grønli, Morten; Antal, Michael Jerry; Várhegyi, Gábor (Journal article; Peer reviewed, 2015)In this work, effects of storage time and conditions on the properties of one woody charcoal were studied. Analyses results showed that the volatile matter content of the charcoal samples collected from the bottom section ... -
Effect of Temperature and Duration of Torrefaction on the Thermal Behavior of Stem Wood, Bark, and Stump of Spruce
Barta-Rajnai, Eszter; Wang, Liang; Sebestyén, Zoltán; Barta, Zsolt; Khalil, Roger Antoine; Skreiberg, Øyvind; Grønli, Morten; Jakab, Emma; Czégény, Zsuzsanna (Journal article; Peer reviewed, 2017)In this work the torrefaction of different parts of Norway spruce (stem wood, bark, and stump) was studied. Three different torrefaction temperatures were applied: 225, 275, and 300 °C with 30 and 60 minutes isothermal ... -
Effect of torrefaction on physiochemical characteristics and grindability of stem wood, stump and bark
Wang, Liang; Barta-Rajnai, Eszter; Skreiberg, Øyvind; Khalil, Roger Antoine; Czégény, Zsuzsanna; Jakab, Emma; Barta, Zsolt; Grønli, Morten (Journal article; Peer reviewed, 2017)In this work, Norway spruce stem wood, stump and bark were torrefied in a bench scale tubular reactor at 225, 275 and 300 °C with two residence times (30 and 60 min). Effect of torrefaction on general properties, chemical ...