Insightful analysis of physical properties, kinetics, absorption capacity, and regeneration heat duty of monoethanolamine and N-methyl-4-piperidinol blended solvent in post-combustion carbon capture.

In this study, the high potential tertiary N-methyl-4-piperidinol or MPDL (0.25-1.00 M) was blended with 5 M monoethanolamine (MEA) to formulate 5.

Cerium-MOF-Derived Composite Hierarchical Catalyst Enables Energy-Efficient and Green Amine Regeneration for CO Capture.

The excessive energy consumed restricts the application of traditional postcombustion CO capture technology and limits the achievement of carbon-neutrality goals. Catalytic-rich CO amine regeneration has the potential to accelerate proton transfer and increase the energy efficiency in the CO separation process. Herein, we reported a Ce-metal-organic framework (MOF)-derived composite catalyst named HZ-Ni@UiO-66 with a hierarchical structure, which can increase the CO desorbed amount by 57.

Comparing closure compliance and ease of use for consumer product packs designed to reduce access to children.

Child impeding packs are difficult for children to open so protect them from unintended access to hazardous contents inside the pack. However, if packs are difficult for adults to open, in normal usage scenarios, this may result in a higher occurrence of packs being left open. This research explores differences in ease of usage and closure compliance between two types of child impeding packs of liquid laundry detergent capsules.

[EMmim][NTf ]-a Novel Ionic Liquid (IL) in Catalytic CO Capture and ILs' Applications.

Ionic liquids (ILs) have been used for carbon dioxide (CO ) capture, however, which have never been used as catalysts to accelerate CO capture. The record is broken by a uniquely designed IL, [EMmim][NTf ]. The IL can universally catalyze both CO sorption and desorption of all the chemisorption-based technologies.

Comprehensive mass transfer analysis of CO absorption in high potential ternary AMP-PZ-MEA solvent using three-level factorial design.

Mass transfer of CO absorption in 2-amino-2-methyl-1-propanol (AMP) - piperazine (PZ) - monoethanolamine (MEA) was statistically investigated in terms of overall mass transfer coefficient ([Formula: see text]) and CO removal percentage. The parameters of interest were lean solvent flux (A), rich gas flux (B), CO loading in the lean solvent (C), and ratio of the sampling height to the total column height [Formula: see text] (D). From ANOVA, A was the most impactable parameter on both responses with three-quarters of the overall contribution.

Experimental and Theoretical Studies of Ultrafine Pd-Based Biochar Catalyst for Dehydrogenation of Formic Acid and Application of In Situ Hydrogenation.

In this work, a novel "foaming" strategy uses sodium bicarbonate (NaHCO) and ammonium oxalate ((NH)CO) as the foaming agent, turning biomass-derived carboxymethyl cellulose (CMC) into N-doped porous carbon. Highly active palladium nanoparticles (Pd NPs) immobilized on nitrogen-doped porous carbon (Pd@MC(2)-P) are produced through a phosphate-mediation approach. The phosphoric acid (HPO) becomes the key to the synthesis of highly dispersed ultrafine Pd NPs on active Pd-cluster-edge (the edge of the Pd-cluster-100 and Pd-cluster-111 surfaces).

Applied Artificial Neural Network for Hydrogen Sulfide Solubility in Natural Gas Purification.

Solubility of hydrogen sulfide (HS) in 46 single and blended physical absorbents, amines, ionic liquids, and hybrid absorbents of amines + ionic liquids and amines + physical absorbents was successfully predicted based on artificial neural networks (ANNs). Three neural network algorithms of Levenberg-Marquardt (LM), Bayesian regularization (BR), and scaled conjugate gradient (SCG) were applied for architecting the ANN models. The results showed that both the number of hidden neurons and the prediction algorithm affected the prediction of HS solubility.

The exploration of size and toddler interaction with liquid laundry detergent capsules.

Liquid laundry capsules have been involved in multiple poisoning incidents with young children in the home. There are a range of contributing factors for these incidents, including influences from industry, culture, home environments, and parenting/supervision. There also are influences from children's behaviour and decisions in reaction to potential hazards.

Reducing Energy Penalty of CO Capture Using Fe Promoted SO/ZrO/MCM-41 Catalyst.

The high energy consumption of CO-loaded solvent regeneration is the biggest impediment for the real application of the amine-based CO capture process. To lower the energy requirement, three Fe promoted SO/ZrO supported on MCM-41 (SZMF) catalysts with different iron oxide content (5%, 10%, and 15%) were synthesized and applied for the rich monoethanolamine solution regeneration process at 98 °C. Results reveal that the use of SZMF hugely enhanced the CO desorption performances (i.

The importance of an ecologically valid method in the evaluation of toddler interaction with coloured liquid laundry detergent capsules.

The colour and appearance of liquid laundry capsules have been implicated in the risk of attracting the attention of toddlers, and therefore contributing to poisoning incidents in the home by encouraging interaction. This research set out to explore if differences in colours and contrasting colour designs used in mono and multi-coloured capsules result in different levels of attractiveness. This was performed using two study settings: a laboratory setting (out of context), and by comparison, a more ecologically valid setting, mimicking the real-world.

Dynamic Exergy Method for Evaluating the Control and Operation of Oxy-Combustion Boiler Island Systems.

Exergy-based methods are widely applied to assess the performance of energy conversion systems; however, these methods mainly focus on a certain steady-state and have limited applications for evaluating the control impacts on system operation. To dynamically obtain the thermodynamic behavior and reveal the influences of control structures, layers and loops, on system energy performance, a dynamic exergy method is developed, improved, and applied to a complex oxy-combustion boiler island system for the first time. The three most common operating scenarios are studied, and the results show that the flow rate change process leads to less energy consumption than oxygen purity and air in-leakage change processes.

Analysis of human perception of facial skin radiance by means of image histogram parameters of surface and subsurface reflections from the skin.

Background: The appearance of the skin is the result of complicated light-skin interactions involving surface and subsurface reflections. Radiant skin is a complicated attribute but is important for skin beauty. The aim of the present study was to achieve an understanding of the association between human perceptions of skin radiance and image histogram parameters from technically recorded images of surface and subsurface reflections.

Characterization of comprehensive appearances of skin ageing: an 11-year longitudinal study on facial skin ageing in Japanese females at Akita.

Background: Facial appearance is regarded as a typical index of ageing. However, people of the same age do not necessarily show the same degree of the facial appearance. The ageing of facial skin proceeds relatively slowly and therefore requires long-term follow-up to elucidate the mechanism of ageing changes.

Microwave synthesis of zinc sulfite and porous zinc oxide microrods.

ZnSO(3) microrods with uniform size and shape can be prepared under microwave irradiation at much higher speed than a conventional heating bath, usually in minutes. The annealing of ZnSO(3) microrods produced porous ZnO microrods with pore size between 50-200 nm.

Towards aqueous gold nanoparticles with buffer resistance and high concentration.

High-concentration gold nanoparticles stabilized by poly(vinylpyrrolindone) (PVP) are prepared through modified citrate-reduction method. The modified approach possesses all the advantages of the popular citrate reduction method. With PVP as weak ligands as well as spatial effects for the metal nanoparticles, the control of the size and size distribution of the gold nanoparticles in the size range between 10 and 30 nm was achieved via maintaining balanced nucleation and growth by tuning the feed ratios of the metal precursors and reducing reagents.

Green chemistry for large-scale synthesis of semiconductor quantum dots.

Large-scale synthesis of semiconductor nanocrystals or quantum dots (QDs) with high concentration and high yield through simultaneously increasing the precursor concentration was introduced. This synthetic route conducted in diesel has produced gram-scale CdSe semiconductor quantum dots (In optimal scale-up synthetic condition, the one-pot yield of QDs is up to 9.6g).