torrefied wood composites in norway

presentation from arbaflame sintef

conversion to advanced wood pellets. handled as coal thru the value chain. the original steam production since 2003 in grasmo plant, norway. ?. accumulated production 120 000 tons fuel comparison. wood chips. wood pellets. arbapellets. torrefied pellets. hard coal. heating value. 10 12 gj/ton. 17 gjton. 19,5 21 gj/ton. 21 22 gj/ton. 25 gj/ton. bulk density. 300 kg/m3. 650 kg/m3. 750 kg/m3. 750 kg/m3. 850 kg/m3. energy density. 3 gj/m3. 11 gj/m3. 14,5 15,5 gj/m3.【Get Price】

dry fine grinding of norway spruce (picea abies) wood in jultika

23 jan 2015 norway spruce (picea abies). holzforschung 67(3): 277–283. v karinkanta p, illikainen m, niinim?ki j (2014) effect of mild torrefaction on pulverization of norway spruce (picea abies) by oscillatory ball milling: particle morphology and composites. eur j wood wood prod 70(1–3): 113–118. kokko l, tolvanen h, h?m?l?inen k & raiko r (2012) comparing the energy required for fine grinding torrefied and fast heat treated pine. biomass bioenergy 42: 219–223.【Get Price】

forest products society 65th international convention poster

per otto fl?te, lars gunnar furelid tellnes, and anders q. nyrud, norsk treteknisk institutt (norwegian institute of wood technology). poster 8 – laminated beams poster 28 – effect of low grade woody biomass content on tensile properties and resistance to environmental exposure in wood hdpe composites michael karas and lech poster 51 – torrefied wood for use as a cofiring fuel in pulverized coal facilities: an international review david l. nicholls, usda 【Get Price】

a review of wood thermal pretreatments to improve wood composite

27 jul 2013 2011); the production of wood composites requires processes such as chipping, reduction of particle size, and drying (sharp 1969;. kollmann et al. 1975; maloney 1993; bowyer et al. 2007; klyosov 2007; clemons. 2010). gasification, combustion, and pyrolysis of wood, as well as the production of pellets, have shown that torrefaction after reducing particle size and drying is a promising pretreatment operation (e.g., less oxygen/carbon on biomass after torrefaction 【Get Price】

biochemical conversion of torrefied norway spruce after

26 nov 2015 abstract the chemical effects of torrefaction and the possi bility to combine torrefaction with biochemical conversion were explored in experiments with five preparations of wood of norway spruce that had been torrefied using different de grees of severity. compositional analysis and analyses using solid state cp/mas 13c nmr, fourier transform infrared. (ftir) spectroscopy, and py gc/ms showed small gradual changes, such as decreased hemicellulosic content 【Get Price】

actof? torrefaction — earth care products, inc.

torrefied organic futures. “a thermochemical treatment of biomass between 400°f and 590°f in a low oxygen environment for a predetermined time interval whereby the cell structure of biomass is modified by volatilization of light reduces emissions from fossil fuel fired power plants; optimum feedstock for liquid biofuels and biochemicals; optimum feedstock for replacement of wood fiber in polymer composites; substitute for pulverized coal injection (pci) coal; biochar.【Get Price】

comprehensive compositional study of torrefied wood and

21 jul 2016 comparative study on the thermal behavior of untreated and various torrefied bark, stem wood, and stump of norway spruce. e. barta rajnai , l. wang , z. sebestyén , z. barta , r. khalil , ?. skreiberg , m. gr?nli , e. jakab , z. czégény. applied energy 2019 204, 1043 1054 【Get Price】

biochemical conversion of torrefied norway spruce after

26 nov 2015 the chemical effects of torrefaction and the possibility to combine torrefaction with biochemical conversion were explored in experiments with five preparations of wood of norway spruce that had been torrefied using different degrees of severity. compositional analysis and analyses using solid state cp/mas <sup>13</sup>c nmr, fourier transform infrared (ftir) spectroscopy, and py gc/ms showed small gradual changes, such as decreased hemicellulosic content and&nbsp;【Get Price】

quang vu bach norwegian university of science and technology

in this study, effects of dry and wet torrefaction on the pyrolysis and combustion kinetics of norway spruce stem wood were directly compared. the dry and wet torrefied woods were produced at appropriate conditions on the basis of a similar mass yield. thermal reactivity of the woods was thermogravimetrically studied in nitrogen and air to simulate pyrolysis and combustion conditions, followed by a kinetic evaluation employing multi pseudo component models. the results show that&nbsp;【Get Price】

torrefaction influence on pelletability and pellet quality of norwegian

10 mar 2014 energy loss (el) and weight loss (wl), higher heating value (hhv), moisture uptake, water activity (aw), and particle size distribution of raw and torrefied woods were determined to characterize the materials before pelleting and to see how torrefaction affects physical properties of wood. the impact of biomass type, temperature, and compacting pressure on pellet strength and compressibility of raw and torrefied wood was investigated using a single pellet press&nbsp;【Get Price】

weathering, water absorption, and durability of silicon, acetylated

28 sep 2006 in this study, two colloidal dispersions of pure amorphous silicon dioxide particles, acetylated, and heat treated samples were tested for a possible application as a wood protection agents. the silicon, acetylated, and heat treated samples were exposed to an accelerated weathering experiment, and their dimensional stability was assessed. the weathering experiment comprised cycles of 2 h uv light irradiation followed by water spray for 18 min. the surface changes&nbsp;【Get Price】

future biorefinery

kraft cooking to make paper grade pulp. – integrated bioenergy production. – also turpentine, tall oil. ? emerging biorefineries. – pre hydrolysis of hemicelluloses to make ethanol. – recycled fibre to ethanol. – gasification to make f t diesel. – flash pyrolysis and torrefaction. – wood plastic composites (nanocellulose). – dissolving pulp. ? future biorefineries. – syngas to high value products. – new products from cellulose, lignin and hemicelluloses. – new wood fractionation methods&nbsp;【Get Price】

effect of temperature during wood torrefaction on researchgate

20 jun 2014 wood torrefaction. ponderosa pine. wood pellets. wood composites. a b s t r a c t. torrefaction enhances physical properties of lignocellulosic biomass and improves its grindability. energy densification, via fuel pellets production, is one of the most promising uses of torrefaction. lignin con tributes to self bonding of wood particles during pelletization. in biomass thermal pretreatment, part of lignin (in the form of lignin liquid intermediates – lli) migrates from the cell&nbsp;【Get Price】

colour in thermally modified wood of beech, norway spruce and

7 may 2009 less of the wood species. for dl*, the profile was cur vilinear and monotonous, while da* and db* bear a complex, non linear profile. in turn, de* was found to be highly influenced by the behaviour of dl*. it is proposed that de* in thermally modified wood originates from chemical changes in the .. modified beech, scots pine and norway spruce woods. ns200 beech, ns220 pine and . es, dc*, were composite: in beech and pine these are almost linear at wl)5%&nbsp;【Get Price】