Impact of ferrocyanide salts on the thermo-oxidative degradation of lignocellulosic sorbents

KTH, Fiber- och polymerteknologi KTH, Wallenberg Wood Science Center 2017

The catalytic effect of ferrocyanide salts of d-metals on the thermo-oxidative degradation of lignocellulose-inorganic sorbents derived from apricot seed shells was investigated by differential thermal analysis. A comparative analysis of the thermal characteristics of the apricot seed shells and the lignocellulose matrix obtained from the shells by alkali-acid pretreatment was performed. It was shown that acid-alkali pretreatment of the apricot seed shells increases the thermal stability of the lignocellulosic material, due to the removal of low molecular weight carbohydrates and other components. The thermal degradation process of the lignocellulose-inorganic samples containing different ferrocyanides occurred at lower temperatures than the initial lignocellulose matrix, indicating the catalytic activity of modifiers. It was demonstrated that for the sorbents containing mixed salts of potassium cobalt and potassium nickel ferrocyanide, thermal destruction ends at temperatures that are 60 A degrees C lower than those for the initial lignocellulose matrix. The obtained results also show that the thermal destruction of composite lignocellulose-inorganic sorbents can be a suitable method for their disposal.
QC 20170627

Apricot seed shells; Lignocellulosic sorbents; Modification; Ferrocyanides of d-metals; Dehydration; Thermal degradation; Chemical Sciences; Kemi; Article in journal; info:eu-repo/semantics/article; text

10.1007.s10973-016-5984-7

Open access content. Open access content
info:eu-repo/semantics/restrictedAccess

English

UPE oai:DiVA.org:kth-208242
0000-0001-7433-0350
0000-0002-2900-4713
doi:10.1007/s10973-016-5984-7
ISI:000399242400039
Scopus 2-s2.0-85000838139
1233977941

UPPSALA UNIV LIBR
From OAIster®, provided by the OCLC Cooperative.

edsoai.on1233977941