Synthesis, Properties, and Techno-economic Analysis of Highly Stable Biotransformer Oil Derived from Transesterification of Palm Oil Methyl Esters and Ditrimethylolpropane.

Currently, biotransformer oil (BTO) is in high demand due to the increasing level of electrical power consumption and environmental policy. Hence, this research aimed to prepare a highly stable BTO via basic transesterification of palm oil methyl ester (POME) and ditrimethylolpropane (Di-TMP) catalyzed by sodium methoxide (NaOCH). Under the optimal conditions (POME/Di-TMP molar ratio = 5.

Glycerol photocatalytic oxidation to higher value-added compounds via bismuth oxyhalide photocatalysts.

Bismuth oxyhalides (BiOX) including BiOCl, BiOBr, and BiOI, were well synthesized using solvothermal technique and then used in the aqueous phase photooxidation of glycerol as a catalyst. The as-synthesized BiOBr could achieve the highest glycerol transformation of around 85.6% in 8 h under ultraviolet light (UV) irradiation among as-synthesized BiOXs.

Non-spherical drug particle deposition in human airway using computational fluid dynamics and discrete element method.

Currently, the air pollution and the respiratory disease problems that affect human health are increasing rapidly. Hence, there is attention for trend prediction of the located deposition of inhaled particles. In this study, Weibel's based human airway model (G0-G5) was employed.

Machine learning and statistical analysis for biomass torrefaction: A review.

Torrefaction is a remarkable technology in biomass-to-energy. However, biomass has several disadvantages, including hydrophilic properties, higher moisture, lower heating value, and heterogeneous properties. Many conventional approaches, such as kinetic analysis, process modeling, and computational fluid dynamics, have been used to explain torrefaction performance and characteristics.

Effect of louver baffles installation on hydrodynamics of bubbling fluidization in biomass gasifier.

Biomass gasification by a bubbling bed gasifier has been a promising process to produce fuels from biomass. However, the performance is limited by gas aggregation in the gasifier. In this study, CFD simulations were used to investigate hydrodynamics in bubbling bed gasifiers installed with multilayer louver baffles to understand the roles of baffles on different aspects including gas aggregation, biomass-bed mixing, gas-biomass contact, and pressure drop.

Valorization of spent disposable wooden chopstick as the CO adsorbent for a CO/H mixed gas purification.

A series of activated carbons (ACs) derived from spent disposable wooden chopsticks was prepared via steam activation and used to separate carbon dioxide (CO) from a CO/hydrogen (H) mixed gas at atmospheric pressure. A factorial design was employed to investigate the effects of the activation temperature and time as well as their interactions on the production yield of ACs and their CO adsorption capacity. The activation temperature exhibited a much higher impact on both the production yield and the CO adsorption capacity of ACs than the activation time.

Effect of transport parameters on atherosclerotic lesion growth: A parameter sensitivity analysis.

Background: Atherosclerosis is a degenerative disease of the arterial wall. It results in the formation of progressively growing plaque lesions that can harden and narrow their host arteries. Current computational models of the inflammatory process that govern atherosclerosis growth are reliant on a number of parameters that can freely vary and whose precise values are not well known.

Natural rubber latex foam with particulate fillers for carbon dioxide adsorption and regeneration.

To reduce the carbon dioxide (CO) concentration in the atmosphere, natural rubber (NR) was developed as a rubber foam for CO adsorption. Although the CO adsorption capacity of the NR latex foam produced by mixing with a cake mixer (CM) was higher than that produced with an overhead stirrer (OS), both capacity values were still low. To improve the CO adsorption capacity, the use of unmodified and (3-aminopropyl)triethoxysilane-modified silica particles as fillers in the CM rubber foam matrix was examined.

Optimum operating parameters of CO sorption in turbulent fluidized bed regime using potassium carbonate supported on gamma alumina solid sorbent.

The promising solid sorbent, potassium carbonate (KCO) supported on gamma alumina (γ-AlO) was prepared through impregnation by insertion into the sorption turbulent riser to determine the optimum operating parameters. A sorption temperature of 60 °C, superficial gas velocity of 0.22 m s, and initial sorbent loading of 5 g were determined to be the optimum conditions so that 93 percent of the actual loaded KCO could react with CO to obtain the highest CO sorption capacity at 279.

Factorial design analysis of parameters for the sorption-enhanced steam reforming of ethanol in a circulating fluidized bed riser using CFD.

The sorption-enhanced steam reforming of ethanol (SESRE) has recently been reported as a novel process for hydrogen (H) production. SESRE can operate well on a Ni-based catalyst with dolomite as a sorbent in packed-bed reactors. In this study, the circulating fluidized bed (CFB) concept was proposed to obtain higher productivity and continuous operation of SESRE.