The modes of deactivation -and the extent to which their properties can be restored- two catalyst bodies used in cascade for bio-oil synthesis have been studied. These catalysts include a solid acid granulate (namely ZrO2/desilicated zeolite ZSM-5/attapulgite clay) employed ex-situ catalytic fast pyrolysis biomass, and base extrudate (K-exchanged USY/attapulgite subsequent upgrading. Post-morte...

In this study, waste shrimp shells from industry were used as a heterogeneous bio-based catalyst for trans-esterification reaction of fresh palm oil. CaO was prepared calcination. Surface area, phase composition, and basicity the calcined shell catalysts studied using N2 adsorption (BET), X-ray diffraction (XRD), CO2 temperature-programmed-desorption (CO2-TPD), respectively. The influence calci...

Summarization of electronic discussion fora is a unique challenge; techniques that work startlingly well on monolithic documents tend to fare poorly in this informal setting. Additionally, conventional techniques ignore much of the structures that have the potential to serve as valuable features in the summarization task. We present several novel examples of such features, including the catalys...

Most drugs function by binding reversibly to specific biological targets, and therapeutic effects generally require saturation of these targets. One means of decreasing required drug concentrations is incorporation of reactive metal centers that elicit irreversible modification of targets. A common approach has been the design of artificial proteases/nucleases containing metal centers capable o...

Novel bio-based aliphatic copolyesters, poly(lactic acid-co-10-hydroxy decanoate) (P(LA-co-HDA), PLH), were successfully synthesized from lactic acid (LA) and 10-hydroxycapric acid (HDA) by a thermal polycondensation process, in the presence of p-toluenesulfonic acid (p-TSA) and SnCl2·2H2O as co-catalyst. The copolymer structure was characterized by Fourier transform infrared (FTIR) and proton ...

A bio-derived Ni catalyst (phytocat) was developed using microwave assistedin-situbiosynthesis. The efficient use of naturally bound nickel in phytocat successful synergistic valorization polystyrene to yield valuable chemical building blocks.