Water—the greenest solvent overall

Zhou, Feng; Hearne, Zoë; Li, Chao‐Jun

doi:10.1016/j.cogsc.2019.05.004

Cited by 101 publications

(48 citation statements)

References 44 publications

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“…Water is the greenest solvent overall [30] and has the potential to provide hydrogen in HDO process. However, very limited attempts have been made in the HDO by using water as hydrogen source.…”

Section: Water-assisted In Situ Hdo Processmentioning

confidence: 99%

Cost-effective routes for catalytic biomass upgrading

Jin

Pastor‐Pérez

et al. 2020

Current Opinion in Green and Sustainable Chemistry

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Catalytic hydrodeoxygenation (HDO) is a fundamental and promising route for bio-oil upgrading to produce petroleum-like hydrocarbon fuels or chemical building blocks. One of the main challenges of this technology is the demand of high-pressure H 2 , which poses high costs and safety concerns. Accordingly, developing cost-effective routes for biomass or bio-oil upgrading without the supply of commercial H 2 is essential to implement the HDO at commercial scale. This article critically reviewed the very recent studies relating to the novel strategies for upgrading the biofeedstocks with 'green' H 2 generated from renewable sources. More precisely, catalytic transfer hydrogenation/hydrogenolysis, combined reforming and HDO, combined metal hydrolysis and HDO, water-assisted in-situ HDO and nonthermal plasma technology and self-supported hydrogenolysis are reviewed herein. Current challenges and research trends of each strategy are also proposed aiming to motivate further improvement of these novel routes to become competitive alternatives to conventional HDO technology.

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Section: Water-assisted In Situ Hdo Processmentioning

confidence: 99%

Cost-effective routes for catalytic biomass upgrading

Jin

Pastor‐Pérez

et al. 2020

Current Opinion in Green and Sustainable Chemistry

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“…For this reason, acetonitrile was substituted with the greener ethanol in the mobile phase. Another green solvent is water because it holds several distinctive properties like superior dielectric constant, heat capacity, hydrogen bonding effect and hydrophobic effect (Zhou et al, 2019). Since ammonia has a clean chemistry score of 9.0, the greenness score is 6.5, which is toxic, and in the yellow zone of GSK's acid and base selection guides (Henderson et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Exploring an experimental combination of analytical quality by design and green analytical chemistry approaches for development of HPTLC densitometric protocol for the analysis of barnidipine hydrochloride

Shirkhedkar

Chaudhari

2021

Biomedical Chromatography

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An experimental combination of analytical quality by design and green analytical chemistry approaches is introduced to develop an high‐performance thin‐layer chromatography (HPTLC) approach to quantify barnidipine hydrochloride in the pharmaceutical matrix. The analytical quality by design approach was introduced to green analytical chemistry to enhance protocol knowledge while ensuring efficiency and reducing environmental impacts, energy consumption and analyst visibility. This analytical approach was systematically addressed by exploring failure mode effect analysis, risk assessment and optimization design. Subsequently, a screening of primary variables was performed to select the aptest proportion of solvents in the mobile phase resulting from the principles of green analytical chemistry. Failure mode effect analysis and a risk assessment study were attempted to estimate the critical method parameters (CMPs). The influence of the CMPs on critical analytical attributes, i.e. retention factor and peak area, was assessed through a screening design. A response surface methodology was then executed for the critical analytical attributes as a concern of the determined CMPs, and the conditions for excellent resolution were determined using a desirability procedure. The established protocol was validated in compliance with the International Conference on Harmonization guideline Q2(R1) and showed excellent specificity and sensitivity.

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“…Finally, scNH 3 presents accessible critical pressure and temperature, but it is toxic and highly reactive and, therefore, it is dangerous to use in high-scale applications. Essentially, two problems have been found with this type of solvent: on the one hand, it is difficult and expensive to perform the installation of the equipment and, on the other hand, the polarity of these solvents is limited [23].…”

Section: Deep Eutectic Solvents (Dess)mentioning

confidence: 99%

Deep Eutectic Solvents: Are They Safe?

et al. 2021

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Deep eutectic solvents (DESs) are a relatively new type of solvent that have attracted the attention of the scientific community due to their environmentally friendly properties and their versatility in many applications. Many possible DESs have been described and, thus, it is not easy to unequivocally characterize and generalize their properties. This is especially important in the case of the (eco)toxicity information that can be found for these mixtures. In this review, we collect data on the human and environmental toxicity of DESs, with the aim of gathering and exploring the behavioral patterns of DESs. The toxicity data found were analyzed attending to different factors: hydrogen bond donors or acceptors that form part of the eutectic mixture, pH, and the presence of organic acids in the DES molar ratio of the components, or interactions with natural compounds. In the case of ecotoxicity, results generally depend on the biomodel studied, along with other factors that have been also revised. Finally, we also carried out a revision of the biodegradation of DESs.

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Water—the greenest solvent overall

Cited by 101 publications

References 44 publications

Cost-effective routes for catalytic biomass upgrading

Cost-effective routes for catalytic biomass upgrading

Exploring an experimental combination of analytical quality by design and green analytical chemistry approaches for development of HPTLC densitometric protocol for the analysis of barnidipine hydrochloride

Deep Eutectic Solvents: Are They Safe?

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