Coke Oven Gas Injection in a Blast Furnace | ispatguru.com

Coke Oven Gas Injection in a Blast Furnace ... calculations and commercial trials which were carried out on the replacement of natural gas with COG in BF showed lower coke consumption and higher hot metal production. The high efficiency of COG is due to the fact that it contains 3.5–4 times fewer hydrocarbons compared to that of natural gas.

Impact of PCI Coal Quality on Blast Furnace Operations

life of ageing coke ovens. The injection of coal into the blast furnace has been shown to: 1) Increase the productivity of the blast furnace, i.e. the amount of hot metal produced per day by the blast furnace; 2) Reduce the consumption of the more expensive coking coals by replacing coke with cheaper soft coking or thermal coals;

Alternate fuels in blast furnaces to reduce coke consumption

Coke consumption in the blast-furnace ranks among 300 - 600 kg.t-1 of the pig-iron depending mainly on the content of the deads in the charge. As the consumption of the metallurgical coke ...

New Generation Blast Furnace with Low Coke Consumption ...

New Generation Blast Furnace with Low Coke Consumption 22 February 2010 It is a well-established and highly efficient process in terms of energy and exergy consumption.

Hot blast superheating - A scalable technology to reduce ...

Blast furnace operational scenarios are described where superheated hot blast air is used to reduce coke consumption, hot metal conversion costs and carbon dioxide emissions while increasing productivity. Hot blast superheating with plasma energy is a scalable technology.

The 2020-2025 World Outlook for Coke Oven and Blast ...

This type of consumption function is show as "B" in the figure below (note the higher slope and zero-zero intercept). The average propensity to consume is constant. For a general overview of this subject area, see Principles of Macroeconomics by N. ... Coke oven and blast furnace products is specifically defined as follows: 3311111 Coke oven ...

The energy efficiency of blast furnaces | SpringerLink

The coke consumption in blast furnaces is determined by the demand for high-temperature heat and its effective utilization. The demand for the reducing agent affects the process through the change in …

Blast furnace | metallurgy | Britannica.com

Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore, coke…

MAXIMIZING LOW FE HYGROSCOPIC IRON ORE …

STRUCTURAL MODIFICATION, TECHNOLOGY INTRODUCTION & PROCESS OPTIMIZATION:- The challenges are opportunities in disguise. In the existing iron making technology through blast furnace route, efforts are being made to reduce coke consumption by higher blast temperature (1000 deg C), …

Blast Furnace System | Industrial Efficiency Technology ...

Top Gas Recycling Blast Furnace: A 26% coke saving/ton Hot Metal from the current BF coke consumption is feasible by the application of this technology. A 15% reduction of CO 2 /t-HRC is expected to be feasible without CCS. Upto 50% CO 2 Reduction is possible with CCS.

Reduction of Coke Rate from 428 kg/thm to 408 kg/thm at 'I ...

Blast Furnace Objective •Reduce the Cost of Hot Metal Iron Making Objective •Reduce the cost of Divisions Product Corporate Objective •Increasing the savings by INR 2000 Cr 60 % of Cost of Hot metal is incurred through Coke & Coal consumption in Blast Furnace 1 2 Reduction of Coke Rate will impact the Perceived Opportunity –Reduction of Hot

Coke consumption in the blast furnace | Springer for ...

With falling blast-furnace demand for reducing agents, direct reduction has a clear influence on coke consumption, not only directly but also indirectly on account of the smaller improvement in smelting conditions with decrease in the demand for heat.

Coke Consumption - an overview | ScienceDirect Topics

Consequently, the coke consumption is lower in electric furnaces than in blast furnaces, which is a considerable advantage in the light of dramatically increasing coke prices. An additional advantage is that the process is not entirely dependent on high-strength coke unlike blast furnaces, and a portion of the carbon requirement can be supplied ...

Blast Furnace - an overview | ScienceDirect Topics

Use of formed coke made from noncoking coal, which can replace about 30% of normal coke consumption. Raising the blast temperature to about 1200 °C by humidifying the blast. Pulverized coal injection (PCI) of noncoking coal into blast furnaces at the rate of 250 kg per tonne of hot metal and enriching the blast with 2–3% oxygen.

Coke Production For Blast Furnace Ironmaking - steel.org

A world class blast furnace operation demands the highest quality of raw materials, operation, and operators. Coke is the most important raw material fed into the blast furnace in terms of its effect on blast furnace operation and hot metal quality.

UDC 669 . 1 . 012 . 4 (510) : 669 . 162 Prospects of Iron ...

Blast Furnace Route in China Yoshio OKUNO*1 ... The future trend of the steel consumption of China is very impor-tant in forecasting the trends in the global markets of raw materials ... Fig. 2 shows the growth of pig iron and coke production of China over the last years. The production of pig iron has increased signifi-

Coke (fuel) - Wikipedia

Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. The carbon monoxide produced by its combustion reduces iron oxide in the production of the iron product. ( + +) Coke is commonly used as fuel for blacksmithing.

HOW A BLAST FURNACE WORKS - Foundry Gate

HOW A BLAST FURNACE WORKS Introduction The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal". The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom.

Optimization of coke consumption in blast furnace process ...

The second law of thermodynamics is very powerful tool in energy optimization of the systems. In an integrated iron and steel plant, one of the main factors decreasing energy consumption is reducing coke rate in blast furnace.

Effect of coke reactivity and nut coke on blast furnace ...

of coke reactivity on the thermal reserve zone, direct reduction and carbon consumption in the blast furnace has been undertaken. Experiments have been performed using non-standard test scenarios that simulate coke behaviour under real blast furnace operating conditions. Coke

Semicoke price,coke Manufacture,Coke coal supplier ...

Semicoke is high in carbon fixation, which can be used as heat, reducing agent, carburizing agent and coke to reduce coke consumption in blast furnace; low carbon ash and ultra-low sulfur in semicoke, which can improve blast furnace out… Nov 27, 2018 Successful cases-clean fuel

Blast Furnace Energy Consumption | HeatTreatConsortium.com

Of the total coke consumption for each of these years, greater than 99% was by blast furnaces. Four other sources of energy play significant role in blast furnace operation, namely natural gas, blast furnace gas, fuel oil, and coke oven gas.

coke consumption in blast furnace - shiatsudiemen.nl

Blast furnaces used in the ISP have a more intense operation than standard lead blast furnaces, with higher air blast rates per m 2 of hearth area and a higher coke consumption. Zinc production with the ISP is more expensive than with electrolytic zinc plants, so several smelters operating this technology have closed in recent years.

Coke Quality and Blast-Furnace Performance | Springer for ...

The quality of the coke has a clear influence on coke consumption and blast-furnace economics. As an illustration, for some of the equations derived, means are established for predicting the economic benefit associated with improving coke quality and reducing its consumption, in specific blast-furnace …

Development of new burden for blast furnace operation with ...

RCA, Reactive Coke Agglomerate RCA Reactive Coke Agglomerate 2. Laboratory tests 1) Influence of carbon content of burden 2) Estimation of reaction beginning temperature 3. Plant trial of RCA ... Low carbon consumption of blast furnace. 55 Load 1 kgf/cm2 Influence of carbon content of burden

Blast furnace - Wikipedia

Blast furnaces used in the ISP have a more intense operation than standard lead blast furnaces, with higher air blast rates per m 2 of hearth area and a higher coke consumption. [58] Zinc production with the ISP is more expensive than with electrolytic zinc plants, so several smelters operating this technology have closed in recent years. [59]

Blast furnace | Revolvy

Blast furnaces used in the ISP have a more intense operation than standard lead blast furnaces, with higher air blast rates per m 2 of hearth area and a higher coke consumption. [58] Zinc production with the ISP is more expensive than with electrolytic zinc plants, so several smelters operating this technology have closed in recent years. [59]

Use of Nut Coke In a Blast Furnace – Sugandha Das – Medium

Use of Nut Coke In a Blast Furnace. ... specific consumption level of over 100 Kg/tHM by 2004–05. These days the use of nut coke as an alternate to BF coke in blast furnace is considered as a ...