نتایج جستجو برای: coke deposition

تعداد نتایج: 95307  

Journal: :Journal of the Air & Waste Management Association 2012
Anna Stella Maria Teresa Piccardo Mauro Pala Daniele Balducci Massimo Cipolla Marcello Ceppi Federico Valerio

UNLABELLED From 1995 to 2004, in Genoa, Italy, daily concentrations of twelve polycyclic aromatic hydrocarbons (PAHs) were measured in particulate phase (PM10), around a coke oven plant in operation from the 1950s and closed in 2002. The study permitted to identify the coke oven as the main PAH source in Genoa, causing constant exceeding of benzo(a)pyrene (BaP) air quality target (1.0 ng/m3) in...

2015
Astrid Wolfbeisser Bernhard Klötzer Lukas Mayr Raffael Rameshan Dmitry Zemlyanov Johannes Bernardi Karin Föttinger Günther Rupprechter

The surface chemistry of methane on Ni-ZrO2 and bimetallic CuNi-ZrO2 catalysts and the stability of the CuNi alloy under reaction conditions of methane decomposition were investigated by combining reactivity measurements and in situ synchrotron-based near-ambient pressure XPS. Cu was selected as an exemplary promoter for modifying the reactivity of Ni and enhancing the resistance against coke f...

2002
Chunsheng Wang A. John Appleby Frank E. Little

The low-temperature performance limits of Johnson Matthey ~JM! 287 graphite and mesocarbon microbead ~MCMB! 6-10 coke were investigated using galvanostatic intermittent titration ~GITT! and electrochemical impedance spectroscopy. The poor lowtemperature (230°C) performance of graphite insertion anodes results from a low lithium insertion capacity because polarization or overpotential is higher ...

Journal: :Neuron 2004
Samuel M. McClure Jian Li Damon Tomlin Kim S. Cypert Latané M. Montague P.Read Montague

Coca-Cola (Coke) and Pepsi are nearly identical in chemical composition, yet humans routinely display strong subjective preferences for one or the other. This simple observation raises the important question of how cultural messages combine with content to shape our perceptions; even to the point of modifying behavioral preferences for a primary reward like a sugared drink. We delivered Coke an...

Journal: :Environmental Health Perspectives 1993
E Grzybowska K Hemminki M Choraźy

White blood cell DNA adducts were measured in coke oven workers, in residents from the area next to the coke oven in Silesia, Poland (highly industrialized region), and in residents from the rural area of Poland using the 32P-postlabeling technique. This method detected aromatic adducts including adducts formed by polycyclic aromatic hydrocarbons (PAHs). Highest levels of adducts in DNA were se...

2016
Behzad Majidi Seyed Mohammad Taghavi Mario Fafard Donald P. Ziegler Houshang Alamdari

Rheological properties of pitch and pitch/coke mixtures at temperatures around 150 °C are of great interest for the carbon anode manufacturing process in the aluminum industry. In the present work, a cohesive viscoelastic contact model based on Burger's model is developed using the discrete element method (DEM) on the YADE, the open-source DEM software. A dynamic shear rheometer (DSR) is used t...

Journal: :Occupational and environmental medicine 2002
J Wu I A Kreis D Griffiths C Darling

AIMS To determine the association between lung function of coke oven workers and exposure to coke oven emissions. METHODS Lung function data and detailed work histories for workers in recovery coke ovens of a steelworks were extracted from a lung function surveillance system. Multiple regressions were employed to determine significant predictors for lung function indices. The first sets of lu...

2012
Jan Konieczyński Elwira Zajusz-Zubek Magdalena Jabłońska

In order to assess the penetration of individual trace elements into the air through their release in the coal coking process, it is necessary to determine the loss of these elements by comparing their contents in the charge coal and in coke obtained. The present research covered four coke oven batteries differing in age, technology, and technical equipment. By using mercury analyzer MA-2 and t...

Journal: :Biomedical and environmental sciences : BES 2007
Hong Wang Xiao-Bo Yang Ai-Lin Liu Hong-Yan Zhen Liang Guo Hua-Shan Liang Yong-Yi Bi Yun Bai Yong-Wen Chen Tang-Chun Wu

OBJECTIVE To investigate the application of BPDE-albumin adducts as monitoring biomarkers for coke oven workers exposed to polycyclic aromatic hydrocarbons (PAHs) and to explore possible relationship between BPDE-albumin adducts and urinary 1-hydroxypyrene (1-OHP) levels in them. METHODS Thirty-seven coke oven workers from a coke plant and 47 controls without the occupational exposure to PAHs...

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