scholarly journals Extraction of lignin and quantitative sugar release from biomass using efficient and cost-effective pyridinium protic ionic liquids

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44003-44014
Author(s):  
Azmat Mehmood Asim ◽  
Maliha Uroos ◽  
Nawshad Muhammad
Keyword(s):  
Ionic Liquids ◽  
Lignocellulosic Biomass ◽  
Cost Effective ◽  
Protic Ionic Liquids ◽  
Sugar Release

Lignocellulosic biomass is enormously abundant around the globe. It bears huge potential for renewable products as its components can be converted to many useful products via cheaper processes.

scholarly journals Effect of Ionicity of Three Protic Ionic Liquids as Neat Lubricants and Lubricant Additives to a Biolubricant

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 713 ◽  
Author(s):  
Hong Guo ◽  
Angela Rina Adukure ◽  
Patricia Iglesias
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Friction And Wear ◽  
Cost Effective ◽  
Lubricant Additive ◽  
Lubricant Additives ◽  
Environmental Damage ◽  
Protic Ionic Liquids ◽  
Protic Ionic Liquid ◽  
Wear Process

Friction and wear of sliding surfaces are responsible for important energy losses and negative environmental effects. The use of environmentally friendly and cost-effective protic ionic liquids as neat lubricants and lubricant additives has the potential to increase the efficiency and durability of mechanical components without increasing the environmental damage. In this work, three halogen-free protic ionic liquids with increasing extent of ionicity, 2-hydroxyethylammonium 2-ethylhexanoate, 2-hydroxymethylammonium 2-ethylhexancate, and 2-hydroxydimethylammonium 2-ethylhexanoate, were synthesized and studied as neat lubricants and additives to a biodegradable oil in a steel–steel contact. The results show that the use of any protic ionic liquid as a neat lubricant or lubricant additive reduced friction and wear with respect to the biodegradable oil. The ionic liquid with the lowest ionicity reached the highest wear reduction. The one possessing the highest ionicity presented the poorest friction and wear behaviors as a neat lubricant, probably due to the more ionic nature of this liquid, which promoted tribocorrosion reactions on the steel surface. This ionic liquid performed better as an additive, showing that a small addition of this liquid in a biodegradable oil is enough to form protective layers on steel surfaces. However, it is not enough to accelerate the wear process with detrimental tribocorrosion reactions.

Development of cost-effective biodiesel from microalgae using protic ionic liquids

2016 ◽  
Vol 18 (18) ◽  
pp. 4982-4989 ◽  
Author(s):  
Cinzia Chiappe ◽  
Andrea Mezzetta ◽  
Christian Silvio Pomelli ◽  
Gaetano Iaquaniello ◽  
Alessio Gentile ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Algal Biomass ◽  
Cost Effective ◽  
Protic Ionic Liquids

This paper reports the use of switchable protic ionic liquids for efficient and sustainable lipids extraction from wet algal biomass.

scholarly journals Sustainable Method for the Synthesis of Alternative Bis(2-Ethylhexyl) Terephthalate Plasticizer in the Presence of Protic Ionic Liquids

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 457
Author(s):  
Aleksander Grymel ◽  
Piotr Latos ◽  
Karolina Matuszek ◽  
Karol Erfurt ◽  
Natalia Barteczko ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Reaction System ◽  
Organometallic Compounds ◽  
Cost Effective ◽  
High Yield ◽  
Bottom Phase ◽  
Protic Ionic Liquids ◽  
New Approach ◽  
Acidic Ionic Liquids

Inexpensive Brønsted acidic ionic liquids based on trimethylamine and sulfuric acid are proposed as both solvents and catalysts in the synthesis of alternative plasticizer bis(2-ethylhexyl) terephthalate, which has a broad spectrum of applications in plasticization processes. The utilization of 50 mol % of Brønsted ionic liquid led to the full conversion of terephthalic acid after 8 h of reaction at 120 °C. Additionally, a 100% selectivity of bis(2-ethylhexyl) terephthalate was obtained. The advantage of the presented reaction system is based on the formation of a biphasic system during the reaction. The bottom phase consists of an ionic liquid and water, and the upper phase is created by the ester and unreacted alcohol. This phenomenon helps overcome the equilibrium of the reaction and drives it towards a high yield of product. The presented new approach is proposed as a safe, cost-effective, and alternative method to conventional processes with organometallic compounds that, in turn, leads to greener and a more economically viable technology.

scholarly journals The Role of Ionic Liquids in the Lignin Separation from Lignocellulosic Biomass

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4864
Author(s):  
Isa Hasanov ◽  
Merlin Raud ◽  
Timo Kikas
Keyword(s):  
Ionic Liquids ◽  
Lignocellulosic Biomass ◽  
Complex Structure ◽  
Renewable Resource ◽  
Scale Production ◽  
Green Solvents ◽  
Protic Ionic Liquids ◽  
The Cost ◽  
Industrial Scale Production

Lignin is a natural polymer, one that has an abundant and renewable resource in biomass. Due to a tendency towards the use of biochemicals, the efficient utilization of lignin has gained wide attention. The delignification of lignocellulosic biomass makes its fractions (cellulose, hemicellulose, and lignin) susceptible to easier transformation to many different commodities like energy, chemicals, and materials that could be produced using the biorefinery concept. This review gives an overview of the field of lignin separation from lignocellulosic biomass and changes that occur in the biomass during this process, as well as taking a detailed look at the influence of parameters that lead the process of dissolution. According to recent studies, a number of ionic liquids (ILs) have shown a level of potential for industrial scale production in terms of the pretreatment of biomass. ILs are perspective green solvents for pretreatment of lignocellulosic biomass. These properties in ILs enable one to disrupt the complex structure of lignocellulose. In addition, the physicochemical properties of aprotic and protic ionic liquids (PILs) are summarized, with those properties making them suitable solvents for lignocellulose pretreatment which, especially, target lignin. The aim of the paper is to focus on the separation of lignin from lignocellulosic biomass, by keeping all components susceptible for biorefinery processes. The discussion includes interaction mechanisms between lignocellulosic biomass subcomponents and ILs to increase the lignin yield. According to our research, certain PILs have potential for the cost reduction of LC biomass pretreatment on the feasible separation of lignin.

scholarly journals Eucalyptus red grandis pretreatment with protic ionic liquids: effect of severity and influence of sub/super-critical CO2 atmosphere on pretreatment performance

RSC Advances ◽  
2020 ◽  
Vol 10 (27) ◽  
pp. 16050-16060 ◽  
Author(s):  
Francisco Malaret ◽  
Florence J. V. Gschwend ◽  
Joana M. Lopes ◽  
Wei-Chien Tu ◽  
Jason P. Hallett
Keyword(s):  
Ionic Liquids ◽  
Lignocellulosic Biomass ◽  
Low Cost ◽  
Protic Ionic Liquids ◽  
Renewable Materials ◽  
Promising Technology ◽  
Fuels And Chemicals ◽  
Co2 Atmosphere

Deconstruction of lignocellulosic biomass with low-cost ionic liquids (ILs) has proven to be a promising technology that could be implemented in a biorefinery to obtain renewable materials, fuels and chemicals.

scholarly journals Quantitative glucose release from softwood after pretreatment with low-cost ionic liquids

2019 ◽  
Vol 21 (3) ◽  
pp. 692-703 ◽  
Author(s):  
Florence J. V. Gschwend ◽  
Clementine L. Chambon ◽  
Marius Biedka ◽  
Agnieszka Brandt-Talbot ◽  
Paul S. Fennell ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Low Cost ◽  
Cost Effective ◽  
Glucose Release ◽  
Sugar Release

Softwood is an abundantly available feedstock for the bio-based industry, however, achieving cost-effective sugar release is particularly challenging owing to its guaiacyl-only lignin.

Acidic ionic liquids: Promising and cost-effective solvents for processing of lignocellulosic biomass

2019 ◽  
Vol 287 ◽  
pp. 110943 ◽  
Author(s):  
Azmat Mehmood Asim ◽  
Maliha Uroos ◽  
Sadia Naz ◽  
Misbah Sultan ◽  
Gregory Griffin ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Lignocellulosic Biomass ◽  
Cost Effective ◽  
Acidic Ionic Liquids

Cost-effective alkylammonium formate-based protic ionic liquids for methane hydrate inhibition

2018 ◽  
Vol 58 ◽  
pp. 59-68 ◽  
Author(s):  
Tausif Altamash ◽  
Majeda Khraisheh ◽  
M. Fahed Qureshi ◽  
Mohammad Ali Saad ◽  
Santiago Aparicio ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Methane Hydrate ◽  
Cost Effective ◽  
Protic Ionic Liquids
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