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Friday, September 27, 2013

#144 - EnErgiron Direct Reduction Technology - Economical, Flexible, Environmentally Friendly

For more than 50 years, HYL (now Tenova HYL) has developed technologies designed to improve steelmaking competitiveness  and productivity for steel facilities. The HYL direct reduction (DR) technology, while perhaps the best known, is accompanied by other technologies designed for making steel in more efficient, cost-effective ways.



The HYL Process has been improved over generations and the current status of the technology, the HYL ZR (or Self-reforming) Process, was developed to allow reduction of iron ores in a shaft furnace without external gas reforming equipment. This process scheme has the ability to produce High Carbon DRI, which allows producers to obtain maximum benefits of carbon in the steel making process, while for merchant sale of the product, eliminating the need for costly briquetting equipment thanks to its highly improved stability.




The recent alliance between Tenova HYL, Techint and Danieli brings a new brand - ENERGIRON – to the forefront of the direct reduction industry. Current environmental regulations worldwide bring more stringent demands to the design of industrial plant operations of all types. 

Energiron technology is characterized by its flexible process configuration which is able to satisfy and exceed these requirements. In regions where either the high cost or low availability of natural gas work against this traditional energy source, the process is easily configured to operate using coke oven gas, syngas from coal gasifiers and other hydrocarbon sources. More importantly, the air and water effluents of the process are not only low but easily controlled.

Incorporation of selective carbon dioxide (CO2) removal systems has been a key factor over the past decade in reducing significantly the emissions levels, providing an additional source of revenue for the plant operator via the captured CO2. The high pressure operation and closed system of an Energiron plant combined with the HYTEMP Pneumatic Transport System reduces dust emissions to both air and settling tanks, making the process more economical and environmentally friendly.



DRI quality-High Carbon DRI

In the Energiron process, carbon in the DRI, mostly as iron carbide (Fe3C), is derived mainly from methane (CH4) and in less extent from carbon monoxide (CO). The level of carbon is adjusted by controlling the reducing gas composition and/or oxygen injection. Most of the carbon in DRI (more than 90% for carbon levels of 4%) currently being produced in the ZR scheme is in the form of iron carbide (Fe3C). The high percentage of Fe3C in the DRI makes the product very stable and presents a unique option related to storage, shipping and handling.



HYL is a member of the Tenova Group. HYL actively develops projects for direct reduction plants worldwide under the Energiron brand name. They started up the world's first successful direct reduction plant in 1957. Over 40 DR modules have been supplied worldwide since then.


For information on Nova gas analyzer systems, give Mike or Dave at Nova a call, or send us an e-mail.
1-800-295-3771
sales at nova-gas dot com
websales at nova-gas dot com


Photos copyright © 2012 HYL 

Thursday, September 19, 2013

#143 - Steel Wheels of AIST

The Association for Iron & Steel Technology (AIST) is a non-profit organization with 16,000 members from more than 70 countries. Their mission is to advance the technical development, production, processing and application of iron and steel.

The board of directors is comprised of several industry leaders such as Francesco Memoli, Vice President Steelmaking, Tenova Core.

I noticed an excellent visual aid on their website recently called the Steel Wheel. It is a graphical representation of the steel-making process. Its circular format allows us to visualize how each of the subsequent steel-making processes are connected with the primary production of iron.

I think I will be putting this one in my ‘cool stuff’ file.


























For information on gas analyzer systems, give Mike or Dave at Nova a call, or send us an e-mail.
1-800-295-3771
sales at nova-gas dot com
websales at nova-gas dot com
http://www.nova-gas.com/

Thursday, September 12, 2013

#142 - Spare Parts and Service pages for Nova equipment

As an instrument manufacturer, we frequently get requests for spare parts and service. We recently added two buttons to the right hand side of our website to assist with those who require parts and service.






Each button leads to a form that is designed to facilitate these types of inquiries. The Submit button sends the inquiry into the Nova Parts & Service Departments who will respond in 1-2 days.

For information on gas analyzer systems, give Mike or Dave at Nova a call, or send us an e-mail.
1-800-295-3771
sales at nova-gas dot com
websales at nova-gas dot com