Hydrogen sulfide (H2S) is becoming a critical issue to manage, due the increasing sulfur content in processed gas together with stricter environmental regulations. Novel alternatives are being developed for H2S abatement and conversion valuable chemicals. Among them, HydroClaus process, patented by Eni S.p.A., deserves attention. This technology aims at converting SO2 into hydrophilic mixture o...

The synthesis of diversely functionalized thioimidazoles through a modern variant of the Marckwald reaction is presented. This new protocol utilizes unprotected carbohydrates as well as simple amine salts as sustainable and biorenewable starting materials. Importantly it was discovered that a bifurcated reaction pathway results from using aldoses and ketoses respectively, yielding distinct reac...

Deep structural and sustained change is necessary to tackle contemporary environmental challenges. How such change emerges and can be governed has been explored through the notion of sustainable innovation journeys. To date research had conceptualised such journeys as transitions to more sustainable socio-technical systems, e.g. mobility, shelter, food and farming. However, there is a paucity o...

This paper presents some simple ideas about domino gates. Domino gates are implementations of logical operations using toppling dominoes to represent the movement of information (bits). The actively toppling domino represents a logic one, and absence of toppling represents logic zero. The domino model can be used as a representation of single-shot wave gates in unconstrained media, such as sub-...

Nonlinear chemical medium can be used to perform information processing functions. In typical applications information is coded in excitation pulses and required operations are performed by interaction of pulses forced by intentionally introduced geometrical structure of the medium. Here we describe a structured system that seems promising for information processing. It is composed of droplets,...

conclusions our present study shows that sugar beet molasses is a source of plp and l-ser; and hence, suggests the general application of the approach to produce l-trp more economically. results consequently, the potassium phosphate buffer system was considered as the suitably buffered reaction medium. the concentration of l-trp produced in reaction medium was 0.3 mm and 0.12 mm for glucose and...

Hydrogen fuel cells (FC) are considered essential for a sustainable economy based on carbon-free energy sources, but a major impediment are the costs. First-principles quantum mechanics (density functional theory including solvation) is used to predict how the energies and barriers for the mechanistic steps of the oxygen reduction reaction (ORR) over the fcc(111) platinum surface depend on the ...