Search Results - "Mahmood, Nubla"

Hydrolytic depolymerization of hydrolysis lignin: Effects of catalysts and solvents by Mahmood, Nubla, Yuan, Zhongshun, Schmidt, John, Xu, Chunbao (Charles)

“…•Depolymerized hydrolysis lignin (DHL) was produced from HL for rigid PU foams.•DHL with Mw∼1000g/mole was obtained in water–ethanol mixture.•Alkaline…”
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Concurrent adsorption of cationic and anionic dyes from environmental water on amine functionalized carbon by Rehman, Muhammad Zia Ur, Aslam, Zaheer, Shawabkeh, Reyad A, Hussein, Ibnelwaleed A, Mahmood, Nubla

“…Amine functionalized carbon (AFC) was synthesized from raw oil fly ash and later utilized it for simultaneous removal of methyl orange (MO) and rhodamine 6G…”
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Sustainable Bio-Based Phenol-Formaldehyde Resoles Using Hydrolytically Depolymerized Kraft Lignin by Siddiqui, Homaira, Mahmood, Nubla, Yuan, Zhongshun, Crapulli, Ferdinando, Dessbesell, Luana, Rizkalla, Amin, Ray, Ajay, Xu, Chunbao Charles

“…In this study bio-based bio-phenol-formaldehyde (BPF) resoles were prepared using hydrolytically depolymerized Kraft lignin (DKL) as bio-phenol to partially…”
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Effects of Process Parameters on Hydrolytic Treatment of Black Liquor for the Production of Low-Molecular-Weight Depolymerized Kraft Lignin by Ahmad, Zaid, Mahmood, Nubla, Yuan, Zhongshun, Paleologou, Michael, Xu, Chunbao Charles

“…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…”
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Adsorption of carbon dioxide onto activated carbon prepared from lawn grass by Aslam, Zaheer, Anait, Umar, Abbas, Aamir, Ihsanullah, Ihsanullah, Irshad, Umar, Mahmood, Nubla

“…In this work, activated carbon was synthesized from lawn grass via its physical treatment. The lawn grass was washed with hydrochloric acid solution before…”
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Depolymerization of lignins and their applications for the preparation of polyols and rigid polyurethane foams: A review by Mahmood, Nubla, Yuan, Zhongshun, Schmidt, John, Xu, Chunbao (Charles)

“…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…”
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Preparation of bio-based rigid polyurethane foam using hydrolytically depolymerized Kraft lignin via direct replacement or oxypropylation by Mahmood, Nubla, Yuan, Zhongshun, Schmidt, John, Xu, Chunbao (Charles)

“…[Display omitted] •Bio-based rigid PU (BRPU) foams were successfully prepared from hydrolytically DKL.•DKL has suitable Mw (∼1700g/mole) and aliphatic/total…”
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Reductive de-polymerization of kraft lignin with formic acid at low temperatures using inexpensive supported Ni-based catalysts by Huang, Shanhua, Mahmood, Nubla, Zhang, Yongsheng, Tymchyshyn, Matthew, Yuan, Zhongshun, Xu, Chunbao (Charles)

“…Reductive de-polymerization of lignin over a supported metal catalyst with in-situ hydrogen source. [Display omitted] •Kraft lignin was reductively…”
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Preparation of bio-based phenol formaldehyde foams using depolymerized hydrolysis lignin by Li, Bing, Wang, Yuyang, Mahmood, Nubla, Yuan, Zhongshun, Schmidt, John, Xu, Chunbao (Charles)

“…•Foamable BPF resoles were synthesized using depolymerized hydrolysis lignin.•A high phenol substitution ratio up to 50% was achieved.•BPF foams were prepared…”
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Production of polyols via direct hydrolysis of kraft lignin: Effect of process parameters by Mahmood, Nubla, Yuan, Zhongshun, Schmidt, John, (Charles) Xu, Chunbao

“…•Bio-polyols were produced via alkaline hydrolysis of kraft lignin for polyurethanes.•A high yield of polyols up to 92% was obtained, with suitable −OH numbers…”
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Sustainable bio-phenol-hydroxymethylfurfural resins using phenolated de-polymerized hydrolysis lignin and their application in bio-composites by Zhang, Yongsheng, Yuan, Zhongshun, Mahmood, Nubla, Huang, Shanhua, Xu, Chunbao (Charles)

“…•Bio-phenolic compounds from hydrolysis lignin (HL) were produced by phenolation.•The Mw of HL was reduced from ∼20,000g/mol to 1500g/mol at low…”
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Reductive de-polymerization of kraft lignin for chemicals and fuels using formic acid as an in-situ hydrogen source by Huang, Shanhua, Mahmood, Nubla, Tymchyshyn, Matthew, Yuan, Zhongshun, Xu, Chunbao (Charles)

“…•Reductive de-polymerization of kraft lignin was carried out employing formic acid.•Formic acid was used as an in-situ hydrogen donor with high reactivity.•The…”
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Production of crude bio-oil via direct liquefaction of spent K-Cups by Yang, Linxi, Mahmood, Nubla, Corscadden, Kenneth, Xu, Chunbao (Charles), He, Quan (Sophia)

“…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…”
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Preparation and characterization of bio-polyol and bio-based flexible polyurethane foams from fast pyrolysis of wheat straw by Li, Hongwei, Mahmood, Nubla, Ma, Zhen, Zhu, Mingqiang, Wang, Junqi, Zheng, Jilu, Yuan, Zhongshun, Wei, Qin, Xu, Charles (Chunbao)

“…[Display omitted] •Bio-polyols were extracted from wheat straw derived bio-oil.•Bio-polyols showed suitable hydroxyl number for the preparation of flexible…”
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Hydrolytic Depolymerization of Lignin for the Preparation of Polyols and Rigid Polyurethane Foams by Mahmood, Nubla

“…This doctoral study was aimed to produce bio-polyols from Kraft lignin (KL) and hydrolysis lignin (HL) via depolymerization and utilize the lignin-derived…”
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