Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Nubla Mahmood"'
Publikováno v:
Molecules, Vol 23, Iss 10, p 2464 (2018)
The present research work aimed at hydrolytic treatment of kraft black liquor (KBL) at 200–300 °C for the production of low-molecular-weight depolymerized kraft lignin (DKL). Various process conditions such as reaction temperature, reaction time,
Externí odkaz:
https://doaj.org/article/edbfea17740f4302b81185a5e9d5be03
Autor:
Homaira Siddiqui, Nubla Mahmood, Zhongshun Yuan, Ferdinando Crapulli, Luana Dessbesell, Amin Rizkalla, Ajay Ray, Chunbao (Charles) Xu
Publikováno v:
Molecules, Vol 22, Iss 11, p 1850 (2017)
In this study bio-based bio-phenol-formaldehyde (BPF) resoles were prepared using hydrolytically depolymerized Kraft lignin (DKL) as bio-phenol to partially substitute phenol. The effects of phenol substitution ratio, weight-average molecular weight
Externí odkaz:
https://doaj.org/article/42461fdee34c4307b870ed09500be5a3
Publikováno v:
Biomass Conversion and Biorefinery. 12:3121-3131
In this work, activated carbon was synthesized from lawn grass via its physical treatment. The lawn grass was washed with hydrochloric acid solution before heat treatment step at different temperatures in the presence of carbon dioxide (CO2) gas. Act
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8778f5a5ce365b4c3c35ae3b6252c9c7
https://doi.org/10.1007/s13399-020-01029-w
https://doi.org/10.1007/s13399-020-01029-w
Autor:
Yongsheng Zhang, Chunbao (Charles) Xu, Zhongshun Yuan, Matthew Tymchyshyn, Shanhua Huang, Nubla Mahmood
Publikováno v:
Fuel. 209:579-586
This work aimed to explore inexpensive supported Ni-based catalysts for de-polymerization of kraft lignin with formic acid at lower temperatures. In this study, kraft lignin was de-polymerized in water–ethanol mixture 50/50 (v/v) with formic acid a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32fdd3612df42e1fa7e5806b5da2d19d
https://doi.org/10.1016/j.fuel.2017.08.031
https://doi.org/10.1016/j.fuel.2017.08.031
Autor:
Qin Wei, Jilu Zheng, Nubla Mahmood, Junqi Wang, Zhen Ma, Zhongshun Yuan, Ming-Qiang Zhu, Charles Chunbao Xu, Hongwei Li
Publikováno v:
Industrial Crops and Products. 103:64-72
Crude bio-oil from fast pyrolysis of wheat straw was extracted with ethyl acetate, and the extracted bio-oil was used as bio-polyol (hydroxyl number: 77.8 mg KOH/g) for the preparation of bio-based flexible polyurethane foams. GC–MS and FTIR analys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c401963f3c8a7510503c68d16485705d
https://doi.org/10.1016/j.indcrop.2017.03.042
https://doi.org/10.1016/j.indcrop.2017.03.042
Publikováno v:
Canadian Journal of Forest Research. 47:277-288
Technological development has enabled the production of new value-added products from lignocellulosic residues such as lignin. This has allowed the forest industry to diversify its product portfolio and maximize the economic returns from feedstock, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0bb0ed4b1c0a9f1b4793121c626f399
https://doi.org/10.1139/cjfr-2016-0336
https://doi.org/10.1139/cjfr-2016-0336
Publikováno v:
Industrial Crops and Products. 97:409-416
Bio-based phenol formaldehyde (BPF) foams with high phenol substitution ratios (30–50 wt%) were successfully prepared using depolymerized hydrolysis lignin (DHL, Mw ≈ 2000 g/mol) obtained via a proprietary low-temperature/low pressure depolymeris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67bc198b7cc8db9f055a134c584d7dc9
https://doi.org/10.1016/j.indcrop.2016.12.063
https://doi.org/10.1016/j.indcrop.2016.12.063
Publikováno v:
Biomass and Bioenergy. 95:354-363
Spent K-Cups were liquefied into crude bio-oil in a water-ethanol co-solvent mixture and reaction conditions were optimized using response surface methodology (RSM) with a central composite design (CCD). The effects of three independent variables on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d90ec9723d31d2d41cc8d2065ff1be5
https://doi.org/10.1016/j.biombioe.2016.07.006
https://doi.org/10.1016/j.biombioe.2016.07.006
Publikováno v:
Renewable and Sustainable Energy Reviews. 60:317-329
Lignin, nature’s dominant aromatic polymer, is found in most terrestrial plants in the range of 15–40% dry weight and provides structural integrity. Kraft lignin (KL) is a major by-product of pulp & paper industry where, hydrolysis lignin (HL) is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30cad371050805b8e519960cf2d18373
https://doi.org/10.1016/j.rser.2016.01.037
https://doi.org/10.1016/j.rser.2016.01.037
Publikováno v:
Green Chemistry. 18:2385-2398
Hydrolysis lignin (HL) was liquefied to a low average molecular weight (Mw) intermediate by employing a 50/50 (v/v) water–ethanol mixture. The effects of process parameters including the reaction temperature, the reaction time and the HL concentrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::429fdd6f976927a877cf9dcbe02e6455
https://doi.org/10.1039/c5gc02876k
https://doi.org/10.1039/c5gc02876k