Using Scrap Tires in EAFs as a Substitute for Carbon
نویسنده
چکیده مقاله:
EAF plants normally consume coal and coke as reactants, alloying elements, or fuel. The price of these materials varies from € 0.20-0.35/kg. This is while nearly 10 million pieces of tires are annually discarded in Iran. The present study shows that scrap tires can be used as a substitute for coal and coke in EAF plants. Thirteen grades of steel including low, medium, and high carbon steels as well as low and high alloys were produced during 73 heats in a 6t EAF. Coke consumption reduced from 18.00 to 0.00 kg/ton of steel produced and power consumption decreased from 448 to 388 kWh/t. Stack gas analysis and measurements were performed to find that the gaseous pollutants released such as CO, NOx, and SO2 were far less than the permitted standard limits. More than 200 heats have so far been carried out using waste tires in Esfahan Steel Co. (ESCo) where experiments were conducted in this study. Industrial tests were replicated in Iran Alloy Steel Company (IASCo) where 20 heats were made in a 40t EAF, which resulted in coke consumption to reduced from 15 to 0 kg/ts and power consumption to reduce by 10%. Similar results were obtained in the EAF Unit of Malayer Alloy Steel Company operating a 25-ton heat capacity EAF. The results of this study show that the process is reliable, economical, and eco-friendly leading to a production cost reduction of 5 €/t.
منابع مشابه
using scrap tires in eafs as a substitute for carbon
eaf plants normally consume coal and coke as reactants, alloying elements, or fuel. the price of these materials varies from € 0.20-0.35/kg. this is while nearly 10 million pieces of tires are annually discarded in iran. the present study shows that scrap tires can be used as a substitute for coal and coke in eaf plants. thirteen grades of steel including low, medium, and high carbon steels as ...
متن کاملRecycling of Scrap Tires
As Rachel Louise Carson (1907-1964) successfully noted in her phrase “The human race is challenged more than ever before to demonstrate our mastery not over nature but of ourselves”, we are challenged to find ways to produce more energy, reduce our waste production while minimizing use of limited natural resources. Although recycling of materials has a history going back to the times of Plato B...
متن کاملDistillation of granulated scrap tires in a pilot plant.
This paper reports the pyrolytic treatment of granulated scrap tires (GST) in a pilot distillation unit at moderate temperature (550°C) and atmospheric pressure, to produce oil, char and gas products. Tire-derived oil is a complex mixture of organic C(5)-C(24) compounds, including a very large proportion of aromatic compounds. This oil has a high gross calorific value (∼ 43 MJ kg(-1)) and N and...
متن کاملLeaching of DOC, DN, and inorganic constituents from scrap tires.
One concern for recycle and reuse of scrap tires is the leaching of tire constituents (organic and inorganic) with time, and their subsequent potential harmful impacts in environment. The main objective of this study was to examine the leaching of dissolved organic carbon (DOC), dissolved nitrogen (DN), and selected inorganic constituents from scrap tires. Different sizes of tire chips and crum...
متن کاملتولید کربن فعال از تایرهای فرسوده با روش ترمو- شیمیایی و ارزیابی کارایی آن درحذف رنگ اسیدی سیاه 1
Background and Objectives: The disposal of waste tires has become an increasingly important issue worldwide in recent years. Tires not only take up large amounts of valuable landfill space, but also create fire hazards and provide a refuge for disease- carrying creatures. The goal of this study was to produce activated carbon from scrap tires .Adsorption of Acid Black1 (AB1) in aqueous solutio...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 5 شماره 1
صفحات 36- 40
تاریخ انتشار 2008-06-01
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023