Hydrogen sulfide (H2S) removal from various industrial gases is crucial because it can cause huge damage to humans, the environment, and production. Zeolite possesses specific surface area well-developed pore structure, making a promising adsorbent for H2S removal. This review attempts comprehensively compile current studies in literature on gas purification processes using zeolites, including ...

Raw glycerol fraction (also called bioglycerol) is the second product of fatty acids triglycerides alcoholysis. However, by many biodiesel producers it is treated as a waste, unwanted material. Due to overproduction of the glycerol fraction there have been many attempts to find its proper utilization, especially that it can comprise up to 30% of the whole biodiesel production. Finding proper ap...

This paper communicates on an innovative, laboratory size alkaline water electrolyser (AWE) system, capable of efficiently producing ultra-pure hydrogen and oxygen gases. The system is composed a zero-gap, bipolar-electrode stack, equipped with polymer-based membrane, along two drying columns for effective purification H2 O2 gaseous products. An optimal electrochemical efficiency the stack prov...

Due to the higher hydrogen solubility and diffusivity, gadolinium sesquioxide (Gd2O3) could be expected as a proton conductive material. In this study, monoclinic Gd2O3 was used evaluate possible conductivity in Ar (?Ar), Ar+4% H2 (?H2), D2 (?D2), Ar+H2O (?H2O), Ar+D2O (?D2O), O2 (?O2) atmospheres temperature range from 500°C 1000°C, understand its application DT fuel system of nuclear fusion r...

CuCe mixed oxide is one of the most studied catalytic systems for preferential CO oxidation (CO-PrOx) purification hydrogen-rich gas stream. In this study, a series ceria supports were prepared via citrates-hydrothermal route by altering synthesis parameters (concentration and temperature). The resulting used preparation mixed-oxide catalysts wet impregnation. Various physicochemical techniques...

Polygeneration of hydrogen, heat, and power has been shown to improve overall plant efficiency by creating more products and introducing synergy which improve fuel cell performance (Figure 1). The integration of an absorption chiller with a high temperature fuel cell for polygeneration of combined cooling, heating, hydrogen, and power is studied. Steady-state and dynamic computer models are uti...

DNA methylation is a key component of mammalian gene regulation and the most classical example of an epigenetic mark. DNA methylation patterns are mitotically heritable and stable over time, but they undergo considerable changes in response to cell differentiation, diseases and environmental influences. Several methods have been developed for DNA methylation profiling on a genomic scale. Here, ...

Previous paleoenvironmental studies reported the dD values of a mixture of coeluting alkenones. Here, we present a semi-preparative normal-phase high-performance liquid chromatography–mass spectrometry (NP-HPLC–MS) method for purifying long chain (C37 and C38) unsaturated methyl and ethyl ketones (alkenones) on the basis of chain length and degree of unsaturation. The method was applied to puri...

A global energy shift to a carbon-neutral society requires clean energy. Hydrogen can accelerate the process of expanding and renewable sources. However, conventional hydrogen compression storage technology still suffers from inefficiencies, high costs, safety concerns. An electrochemical compressor (EHC) is device similar in structure water electrolyzer. Its most significant advantage that it ...