Highly Enhanced Adsorption of Dimethyl Disulfide from Model Oil on MOF-199/Attapulgite Composites

2019 ◽  
Vol 58 (5) ◽  
pp. 2009-2016 ◽  
Author(s):  
Li Du ◽  
Jingyi Yang ◽  
Xinru Xu
Keyword(s):  
Dimethyl Disulfide ◽  
Enhanced Adsorption ◽  
Model Oil

Rheology of Cyclopentane Hydrates formed in Water-in-model Oil Emulsions

2020 ◽  
Author(s):  
Marcio Ozorio ◽  
Gustavo Alonso Barrientos Sandoval ◽  
Monica Naccache ◽  
Paulo Roberto de Souza Mendes ◽  
Adriana Teixeira ◽  
...  
Keyword(s):  
Oil Emulsions ◽  
Model Oil

Characterization of odorous compounds from bleached kraft pulp mill effluent

1995 ◽  
Vol 31 (11) ◽  
pp. 35-40 ◽  
Author(s):  
B. G. Brownlee ◽  
S. L. Kenefick ◽  
G. A. MacInnis ◽  
S. E. Hrudey
Keyword(s):  
Gas Chromatography ◽  
Kraft Pulp ◽  
Pulp Mill ◽  
Dimethyl Disulfide ◽  
Gas Chromatography Mass Spectrometry ◽  
Pulp Mill Effluent ◽  
Kraft Pulp Mill ◽  
Bleached Kraft Pulp ◽  
Methyl Phenyl Sulfide ◽  
Library Spectrum

Odour compounds in extracts of bleached kraft pulp mill effluent (BKME) have been characterized by olfactory gas chromatography (OGC) and gas chromatography-mass spectrometry. A variety of sulfury odours was detected by OGC in addition to woody and pulp mill-like odours. Three sulfur compounds were identified by comparison of retention times and partial mass spectra with authentic standards: dimethyl disulfide, 3-methylthiophene and thioanisole (methyl phenyl sulfide). Typical concentrations in BKME were 1, 0.05, and 0.5 μg/l, respectively. Their odour intensity is relatively low and they were not detected by OGC. Dimethyl trisulfide was tentatively identified by comparison of its partial mass spectrum with a literature (library) spectrum. Its concentration in BKME was estimated at 0.5-2 μg/l. It corresponded to a skunky odour in the OGC profiles. Efforts to identify another odour peak, eluting just after 3-methylthiophene, with a pronounced alkyl sulfide odour were unsuccessful.

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