scholarly journals Polymeric waste valorization at a crossroads: Ten ways to bridge research on model and complex/real feedstock

2021 ◽  
Author(s):  
Idoia Hita del Olmo ◽  
Subram Mani Sarathy ◽  
Pedro Castaño
Keyword(s):  
Waste Valorization ◽  
Thermal Depolymerization ◽  
Polymeric Waste ◽  
Catalytic Treatment

The valorization of polymeric waste, such as biomass, tires, and plastics, via thermal depolymerization (i.e., pyrolysis and liquefaction) and simultaneous or subsequent catalytic treatment has gained enormous momentum. The inherent...

Review on the production of medium and small chain fatty acids through waste valorization and CO2 fixation

2020 ◽  
Vol 309 ◽  
pp. 123400 ◽  
Author(s):  
M. Venkateswar Reddy ◽  
Gopalakrishnan Kumar ◽  
Gunda Mohanakrishna ◽  
Sutha Shobana ◽  
Riyadh I. Al-Raoush
Keyword(s):  
Fatty Acids ◽  
Co2 Fixation ◽  
Waste Valorization ◽  
Small Chain ◽  
Chain Fatty Acids

scholarly journals Transforming biorefinery designs with ‘Plug-In Processes of Lignin’ to enable economic waste valorization

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhi-Hua Liu ◽  
Naijia Hao ◽  
Yun-Yan Wang ◽  
Chang Dou ◽  
Furong Lin ◽  
...  
Keyword(s):  
Cellulosic Ethanol ◽  
Cost Effective ◽  
Substantial Improvement ◽  
Selling Price ◽  
Waste Valorization ◽  
Lignin Valorization ◽  
Capital Costs ◽  
Carbon Efficiency ◽  
Synergistic Enhancement ◽  
Total Capital

AbstractBiological lignin valorization has emerged as a major solution for sustainable and cost-effective biorefineries. However, current biorefineries yield lignin with inadequate fractionation for bioconversion, yet substantial changes of these biorefinery designs to focus on lignin could jeopardize carbohydrate efficiency and increase capital costs. We resolve the dilemma by designing ‘plug-in processes of lignin’ with the integration of leading pretreatment technologies. Substantial improvement of lignin bioconversion and synergistic enhancement of carbohydrate processing are achieved by solubilizing lignin via lowering molecular weight and increasing hydrophilic groups, addressing the dilemma of lignin- or carbohydrate-first scenarios. The plug-in processes of lignin could enable minimum polyhydroxyalkanoate selling price at as low as $6.18/kg. The results highlight the potential to achieve commercial production of polyhydroxyalkanoates as a co-product of cellulosic ethanol. Here, we show that the plug-in processes of lignin could transform biorefinery design toward sustainability by promoting carbon efficiency and optimizing the total capital cost.

Separation of colloidal polymeric waste using a local soil

1998 ◽  
Vol 13 (2) ◽  
pp. 161-169 ◽  
Author(s):  
Nabil S Abuzaid ◽  
Muhammad H Al-Malack ◽  
Aarif H El-Mubarak
Keyword(s):  
Local Soil ◽  
Polymeric Waste

scholarly journals Effect of Thermal and Hydro-Catalytic Treatment on the Molecular Chemistry of Narrow Fractions of Athabasca Bitumen Pitch

2001 ◽  
Vol 15 (1) ◽  
pp. 113-119 ◽  
Author(s):  
S. Zhao ◽  
L. S. Kotlyar ◽  
J. R. Woods ◽  
B. D. Sparks ◽  
K. H. Chung
Keyword(s):  
Molecular Chemistry ◽  
Athabasca Bitumen ◽  
Catalytic Treatment

Waste Valorization: Physical, Chemical, and Biological Routes

2021 ◽  
pp. 229-255
Author(s):  
Muhammad Faheem ◽  
Muhammad Azher Hassan ◽  
Tariq Mehmood ◽  
Sarfraz Hashim ◽  
Muhammad Aqeel Ashraf
Keyword(s):  
Waste Valorization ◽  
Physical Chemical

Catalytic Decomposition of Analgin Pharmaceutical Wastewater in Supercritical Water

2015 ◽  
Vol 18 (2) ◽  
Author(s):  
Caiting Feng ◽  
Lixia Yang
Keyword(s):  
Hydrogen Production ◽  
Supercritical Water ◽  
Catalytic Decomposition ◽  
Continuous Reactor ◽  
Pharmaceutical Wastewater ◽  
Sodium Salts ◽  
Catalytic Treatment ◽  
First Time

AbstractIn this paper, hydrogen production by catalytic treatment of analgin pharmaceutical wastewater was systematically investigated in supercritical water (SCW) with a continuous reactor for the first time. The effect of sodium salts on the decomposition of analgin pharmaceutical wastewater in supercritical water was investigated in a continuous reactor. The results showed that NaHCO

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