نتایج جستجو برای: coking coal
تعداد نتایج: 32475 فیلتر نتایج به سال:
The polycyclic aromatic hydrocarbon (PAH) pollution process in mining areas, particularly coal has accelerated because of chemical production and gangue accumulation. In this study, PHAs concentrations surface soil was determined via gas chromatography–mass spectrometry. composition, spatial distribution sources PAHs were analyzed, their potential carcinogenic risks evaluated.Results showed a w...
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
Substitution of coal in coking blend with bio-coal is a potential way to reduce fossil CO2 emissions from iron and steelmaking. The current study aims explore possible means counteract negative influence cokemaking. Washing kaolin coating bio-coals were conducted remove or bind part the compounds ash that catalyzes gasification coke CO2. To further how increase reactivity related more reactive ...
The deactivation pattern of a “model” Ni/MgO catalyst in the pre-reforming of n-hexane with steam (T, 450 °C; P, 5–15 bar) is reviewed. The influence of the steam-to-carbon ratio (S/C, 1.5–3.5) on the rate of catalyst fouling by coking is ascertained. Catalyst fouling leads to an exponential decay in activity, denoting 1-order dependence of the coking process on active sites availability. Hydro...
در این پژوهش، ساخت ترکیب بین فلزی coal نانوساختار و نانوکامپوزیت های coal/al2o3 با درصدهای مختلف از ذرات تقویت کننده به روش آلیاژسازی مکانیکی مورد بررسی قرار گرفت. تغییرات فازی و مطالعات ریزساختاری به وسیله آزمون های پراش پرتو ایکس (xrd)، میکروسکوپ الکترونی روبشی (sem)، میکروسکوپ الکترونی عبوری (tem) و آنالیز حرارتی (dta) ارزیابی شد. نتایج نشان داد که آلیاژسازی مکانیکی مخلوط پودری co50al50 موجب...
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