ChemInform Abstract: Oil and Greases and Petroleum Hydrocarbon Analysis

ChemInform ◽  
2000 ◽  
Vol 31 (51) ◽  
pp. no-no
Author(s):  
Rossiza Belcheva
Keyword(s):  
Petroleum Hydrocarbon ◽  
Hydrocarbon Analysis

Optical particle size distribution and petroleum hydrocarbon analysis of offshore produced water from the Bohai Sea

2017 ◽  
Vol 99 ◽  
pp. 315-321
Author(s):  
Xiaogang Wu ◽  
Bo Jing ◽  
Wenjuan Chen ◽  
Mengying Yang ◽  
Xianqing Yin ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Petroleum Hydrocarbon ◽  
Bohai Sea ◽  
Produced Water ◽  
The Bohai Sea ◽  
Hydrocarbon Analysis

scholarly journals Avaliação do desempenho analítico do método de determinação de TPH (Total Petroleum Hydrocarbon) por detecção no infravermelho

2018 ◽  
Vol 33 (1) ◽  
pp. 35
Author(s):  
Alexandre Rodrigues Do Nascimento ◽  
Roberta Lourênço Ziolli ◽  
José Tavares Araruna Júnior ◽  
Carolina De Souza Pires ◽  
Tania Maria De Brito Silva
Keyword(s):  
Petroleum Hydrocarbon ◽  
Total Petroleum Hydrocarbon ◽  
Infrared Detection ◽  
Research Centre ◽  
Guanabara Bay ◽  
Marine Fuel ◽  
Analysis Methodology ◽  
Hydrocarbon Analysis ◽  
Oil Density ◽  
Metrological Parameters

This work deals with an optimization of TPH (Total Petroleum Hydrocarbon) analysis methodology for samples of contaminated sands, validating the infrared detection technique through the use of Infracal TOG/TPH equipment. Tests were validated using Marine Fuel 380 oil, density 0.987 g cm-3 and viscosity 5313 cP at 20 0C. This oil sample was kindly supplied by Petrobras Research Centre (CENPES), and is the same oil that leaked from a pipeline in REDUC Refinery on January 2000, contaminating several beaches in Guanabara Bay, including Anil and Mauá. The validation results suggested that the methodology performance was adequate for this application. Amongst the metrological parameters obtained from this work, the detection limit, 4.06 mg L-1, was a plus; since it was far below to the concentration range obtained from this samples.

scholarly journals Unravelling the process of petroleum hydrocarbon biodegradation in different filter materials of constructed wetlands by stable isotope fractionation and labelling studies

2021 ◽  
Author(s):  
Andrea Watzinger ◽  
Melanie Hager ◽  
Thomas Reichenauer ◽  
Gerhard Soja ◽  
Paul Kinner
Keyword(s):  
Stable Isotope ◽  
Constructed Wetlands ◽  
Hydrogen Isotope ◽  
Petroleum Hydrocarbon ◽  
Isotope Fractionation ◽  
Isotope Effects ◽  
Filter Material ◽  
Hydrocarbon Biodegradation ◽  
Stable Isotope Fractionation ◽  
Filter Materials

AbstractMaintaining and supporting complete biodegradation during remediation of petroleum hydrocarbon contaminated groundwater in constructed wetlands is vital for the final destruction and removal of contaminants. We aimed to compare and gain insight into biodegradation and explore possible limitations in different filter materials (sand, sand amended with biochar, expanded clay). These filters were collected from constructed wetlands after two years of operation and batch experiments were conducted using two stable isotope techniques; (i) carbon isotope labelling of hexadecane and (ii) hydrogen isotope fractionation of decane. Both hydrocarbon compounds hexadecane and decane were biodegraded. The mineralization rate of hexadecane was higher in the sandy filter material (3.6 µg CO2 g−1 day−1) than in the expanded clay (1.0 µg CO2 g−1 day−1). The microbial community of the constructed wetland microcosms was dominated by Gram negative bacteria and fungi and was specific for the different filter materials while hexadecane was primarily anabolized by bacteria. Adsorption / desorption of petroleum hydrocarbons in expanded clay was observed, which might not hinder but delay biodegradation. Very few cases of hydrogen isotope fractionation were recorded in expanded clay and sand & biochar filters during decane biodegradation. In sand filters, decane was biodegraded more slowly and hydrogen isotope fractionation was visible. Still, the range of observed apparent kinetic hydrogen isotope effects (AKIEH = 1.072–1.500) and apparent decane biodegradation rates (k = − 0.017 to − 0.067 day−1) of the sand filter were low. To conclude, low biodegradation rates, small hydrogen isotope fractionation, zero order mineralization kinetics and lack of microbial biomass growth indicated that mass transfer controlled biodegradation.

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