Abstract：
:In this study, the apparent kinetics of fast pyrolysis of alkali lignin was evaluated by obtaining isothermal mass loss data in the timescale of 2-30s at 400-700°C in an analytical pyrolyzer. The data were analyzed using different reaction models to determine the rate constants and apparent rate parameters. First order and one dimensional diffusion models resulted in good fits with experimental data with apparent activation energy of 23kJmol-1. Kinetic compensation effect was established using a large number of kinetic parameters reported in the literature for pyrolysis of different lignins. The time evolution of the major functional groups in the pyrolysate was analyzed using in situ Fourier transform infrared spectroscopy. Maximum production of the volatiles occurred around 10-12s. A clear transformation of guaiacols to phenol, catechol and their derivatives, and aromatic hydrocarbons was observed with increasing temperature. The plausible reaction steps involved in various transformations are discussed.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Ojha DK,Viju D,Vinu Rdoi
10.1016/j.biortech.2017.05.084subject
Has Abstractpub_date
2017-10-01 00:00:00pages
142-151eissn
0960-8524issn
1873-2976pii
S0960-8524(17)30739-3journal_volume
241pub_type
杂志文章abstract：:In order to establish the correlation between hemicelluloses removal and bioconversion efficiency of cellulose, fractionation process with increasing NaOH concentration selectively released the hemicellulosic polymers with increasing molecular weight and decreasing degree of substitution. Not only the initial hydrolys...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.08.087
更新日期：2013-11-01 00:00:00
abstract：:Novel horizontal tubes and triangular prism (HTTP) baffles that generate flow vortices were developed to increase solution velocity between dark and light areas and thus improve microalgal growth in a flat-panel photo-bioreactor. Solution velocity, mass-transfer coefficient, and mixing time were measured with a partic...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.03.145
更新日期：2016-07-01 00:00:00
abstract：:The effects of surface properties of Saccharomyces cerevisiae strains 468/pGAC9 and 468 on adhesion to polyethyleneimine (PEI) and/glutaraldehyde (GA) pre-treated cotton (CT), polyester (PE), polyester+cotton (PECT), nylon (NL), polyurethane foam (PUF), and cellulose re-enforced polyurethane (CPU) fibers were investig...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.11.055
更新日期：2011-02-01 00:00:00
abstract：:L-phosphinothricin (L-PPT) is an important broad-spectrum herbicide with expanding utilization because it is environmentally benign. A strain Leclercia adecarboxylata ZJB-17008 with capability of catalyzing rac-4-(hydroxy(methyl)phosphoryl)-2-(2-phenylacetamido) butanoic acid (rac-S) to L-PPT was screened and identifi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121658
更新日期：2019-10-01 00:00:00
abstract：:A laboratory study was carried out to obtain data on the influence of biomass temperature on biostabilization-biodrying of municipal solid waste (initial moisture content of 410 g kg wet weight (w.w.)(-1)). Three trials were carried out at three different biomass temperatures, obtained by airflow rate control (A = 70 ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(01)00231-0
更新日期：2002-07-01 00:00:00
abstract：:In this study, an electrolysis-assisted down-flow constructed wetland (E-DFCW) was successfully established, and achieved simultaneously efficient removal of PO43--P (93.6% ± 3.2%), NO3--N (97.1% ± 2.0%) and TN (80.6% ± 5.4%). When compared with electrolysis-assisted up-flow constructed wetland (E-UFCW), E-DFCW allowe...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2021.124692
更新日期：2021-01-11 00:00:00
abstract：:Composting of dead birds with caged layer manure (CLM) and farm yard manure (FYM) was carried out to study the feasibility of composting as an alternative for disposal in Tamil Nadu State, India. The dead birds were sequentially layered with manure substrate and carbon source as per recipes formulated in mini-compost ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.07.023
更新日期：2008-06-01 00:00:00
abstract：:Gluconobacter oxydans can rapidly and effectively transform glycerol to dihydroxyacetone (DHA) by membrane-bound quinoprotein sorbitol dehydrogenase (mSLDH). Two mutant strains of GDHE Δadh pBBR-PtufBsldAB and GDHE Δadh pBBR-sldAB derived from the GDHE strain were constructed for the enhancement of DHA production. Gro...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.03.013
更新日期：2012-08-01 00:00:00
abstract：:Dissolved oxygen (DO) level is crucial in shaping bacterial community and impacts biological nitrogen removal and nitrous oxide (N2O) emission. Online gaseous and off-line dissolved N2O under varying DO levels through aeration rate alternations were measured in lab-scale anoxic-oxic reactors. It showed that sharp chan...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121809
更新日期：2019-11-01 00:00:00
abstract：:This study presents baseline data on the physiochemical properties and potential uses of macroalgal (seaweed) biochar produced by pyrolysis of eight species of green tide algae sourced from fresh, brackish and marine environments. All of the biochars produced are comparatively low in carbon content, surface area and c...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.106
更新日期：2011-01-01 00:00:00
abstract：:A novel Saccharomyces cerevisiae whole-cell biocatalyst for xylitol production based on Candida tenuis xylose reductase (CtXR) is presented. Six recombinant strains expressing wild-type CtXR or an NADH-specific mutant were constructed and evaluated regarding effects of expression mode, promoter strength, biocatalyst c...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.09.046
更新日期：2015-12-01 00:00:00
abstract：:The adsorption mechanisms of Pb(II) and Cd(II) in aqueous solution using camellia seed husk biochars pyrolyzed at different temperatures were studied. The adsorption of Pb(II) and Cd(II) on biochars are mainly controlled by ion exchange, oxygen functional groups (OFGs) complexation, Pb(II)/Cd(II)-π interactions, and p...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121859
更新日期：2019-11-01 00:00:00
abstract：:Degradation kinetics of particulate matter in anaerobic digestion of secondary sludge, untreated and sonicated, was investigated by carrying out batch tests at different feed/inoculum ratio (F/I) (in the range of 0.1-4.0). Particulate COD degradation data were analysed using the four equations most widely utilized to ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.12.035
更新日期：2008-09-01 00:00:00
abstract：:Consolidated bioprocesses for bioconversion of lignocellulosic biomass into biodiesel feedstocks were developed. Palm empty fruit bunch (EFB) was biologically pretreated coupling with fungal lipid production (121.4 ± 2.7 mg/g-EFB) by lignocellulolytic oleaginous fungi prior to lipid production by oleaginous yeasts. In...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123893
更新日期：2020-11-01 00:00:00
abstract：:The potential for microbial protein production in the mixture of yellow wine lees and rice soaking wastewater was examined. Strong symbiotic effect was observed in fermentation with yeast-fungus mixed culture of Candida utilis and Geochichum candidum at a ratio of 1:1 (v/v). The maximum specific biomass yield of 4.91 ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.122565
更新日期：2020-03-01 00:00:00
abstract：:Soil bioaugmentation was performed in soil pots to reduce the cadmium potentially available for plants. A Bacillus sp. (isolate ZAN-044) and a Streptomyces sp. (isolate R25) were compared, just as the inoculation technique, i.e., inoculum size, free or immobilized cells. After 3 weeks of a batch incubation, the potent...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.02.002
更新日期：2008-03-01 00:00:00
abstract：:Microbial electrosynthesis (MES) is a promising technology to convert CO2 and electricity into the biofuel methane using methanogens. Until now, most investigations on electro-methanogenesis are "proof-of-principle" studies. In this paper, different strains were quantitatively compared in regard to final methane conce...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121706
更新日期：2019-10-01 00:00:00
abstract：:The membrane fouling mechanism was studied in treating succinic acid fermentation broth during dead-end ultrafiltration. Different membranes were used and two models were applied to analyze the fouling mechanism. Resistance-in-series model was applied to determine the main factor that caused the operation resistance. ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.03.099
更新日期：2012-07-01 00:00:00
abstract：:The hydrolysis of chitin treated under supercritical conditions was successfully carried out using chitinases obtained by an optimized fermentation of the fungus Lecanicillium lecanii. The biopolymer was subjected to a pretreatment based on suspension in supercritical 1,1,1,2-tetrafluoroethane (scR134a), which possess...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.02.138
更新日期：2016-06-01 00:00:00
abstract：:The extracellular dextransucrase from Leuconostoc mesenteroides NRRL B-640 was purified using polyethylene glycol fractionation (PEG) and gel-filtration. The cell free extract was subjected to fractionation by PEG-200, 400 and 1500. The 10% (w/v) PEG-1500 gave dextransucrase with maximum specific activity of 23 with 4...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.07.044
更新日期：2008-06-01 00:00:00
abstract：:A high throughput enzyme assay platform, called GENPLAT, was used to guide the development of an optimized mixture of individual purified enzymes from ten "accessory" and six "core" enzymes. Enzyme mixtures were optimized for release of Glu, Xyl, or a combination of the two from corn stover pretreated by ammonia-fiber...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.028
更新日期：2010-12-01 00:00:00
abstract：:As a promising renewable energy technology, anaerobic fermentation is consistently limited by low production and calorific value of biogas, along with the difficulty of lignocellulose degradation. The effects of polarity and micro-voltage on anaerobic fermentation from lignocellulosic materials were investigated in si...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.02.052
更新日期：2014-05-01 00:00:00
abstract：:To determine the influence of nutrients on the rate of biodegradation, a five-level, three-factor central composite design (CCD) was employed for bioremediation of seawater artificially contaminated with crude oil. Removal of total petroleum hydrocarbons (TPH) was the dependent variable. Samples were extracted and ana...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.077
更新日期：2010-12-01 00:00:00
abstract：:The present research work deals with the production of activated carbons by chemical activation and pyrolysis of sewage sludges. The adsorbent properties of these sewage sludges based activated carbons were studied by liquid-phase adsorption tests. Dyes removal from colored wastewater being a possible application for ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(02)00243-2
更新日期：2003-05-01 00:00:00
abstract：:The aim of this study was to investigate the potential of using wood hydrolysates (enzymatically hydrolyzed from hybrid poplar) as substrate to produce polyhydroxybutyrate (PHB) using mixed microbial cultures. The optimal operational conditions for fed-batch bioreactors were 4d solid retention time with an organic loa...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.10.049
更新日期：2015-01-01 00:00:00
abstract：:The aim of the present research work was to boost biogas production from cattle manure (CM) by adding food waste (FW) and crude glycerin (Gly) from the biodiesel industry as co-substrates. For this purpose, different quantities of FW and Gly were added to CM and co-digested in an induced bed reactor (IBR) at 55 °C. So...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.02.076
更新日期：2013-05-01 00:00:00
abstract：:In this study, an anaerobic flat-sheet ceramic membrane bioreactor (AnCMBR) was used to treat high-strength dyeing wastewater, and compared with an upflow anaerobic sludge blanket (UASB) reactor. The start-up phases of the AnCMBR and UASB reactor were accomplished within 60 d by using cultivated seed sludge. The resul...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.08.126
更新日期：2018-12-01 00:00:00
abstract：:This study investigated the influence of various hardwood characteristics on enzymatic hydrolysis. Important hardwood species, including three Eucalyptus species, were comprehensively characterized using quantitative (13)C NMR, image analysis and fiber quality analysis. Hydrolysis efficiency from all the hardwoods was...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.01.085
更新日期：2012-04-01 00:00:00
abstract：:The wide number of industrial processes applying cellulases highlights the importance of discovering robust enzymes able to work under harsh conditions. In this study, carboxymethyl cellulase (CMCase) activity of Paenibacillus tarimensis was characterized. A high activity was observed in pH range 3.0-10.5 and 9 mM-5 M...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.09.089
更新日期：2013-12-01 00:00:00
abstract：:The removal of chromium(VI) from aqueous solution under different conditions using an adsorbent was investigated. This adsorbent is Beech (Fagus orientalis L.) sawdust studied by using batch techniques. Batch studies indicated that the percent adsorption decreased with increasing initial concentration of chromium(VI)....
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2003.10.032
更新日期：2004-08-01 00:00:00
