National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Kinetics of Keratin Acidic Hydrolysis in Batch Autoclave.
Hanika, Jiří ; Kaštánek, P. ; Rousková, Milena ; Šabata, Stanislav ; Šolcová, Olga
The contribution brings novel data on the non-traditional process presented during previous ICCT 2015 conference1. According to the patent application2 the hydrolysis of waste chicken feathers was performed in a reaction mixture containing water and a soluble acid catalyst with the pKa value lower than 4, in a stirred batch reactor for 0.5 to 10 hours, in the temperature range from 90 to 130°C and at the pertinent vapour pressure of reaction mixture. Kinetics of preparing a mixture of proteins and amino acids by hydrolysis of a waste material containing chicken feathers was investigated in this study.\n
Fulltext: content.csg - Download fulltextPDF
Plný tet: SKMBT_22317120815250 - Download fulltextPDF
Catalysts for Biodiesel Production from Low-Grade Raw Materials
Jeřábek, Karel ; Holub, Ladislav ; Hanková, Libuše
In the biodiesel production from low-cost materials containing free fatty acids could be for their esterification used ion exchanger catalysts. They lower amount of the produced wastes and as heterogeneous catalysts they allow carrying the process in flow-through reactor. However, their application properties strongly depend on the methanol concentration in the reaction mixture and the character of this influence is different for different morphologies of the ion exchanger polymer skeleton. Good knowledge of these effects is important for optimization of the production process.

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