Grading Coke and Coal Blends for Steel Production with a CRAIC Technologies Microscope Photometer
SAN DIMAS, CA – September 16, 2009 – Coal is a vital component in steel production as a source of carbon. The QDI CoalPro™ Vitrinite Reflectance Measurement System, from CRAIC Technologies, is designed to ensure that the coal blends used in steel production are optimum and consistent from batch to batch.
Coke is used as a reducing agent when smelting iron ore in the first stage of making steel. Coke is made by the pyrolysis of blends of low-sulfur and low-ash coal. The process is called “coking” and it is done to drive off the volatile components of coal leaving a gray, porous solid. Blends of bituminous coals are commonly used as the coal must have a certain amount of volatile matter in order to make good quality coke. Too much or too little results in poor quality coke. Generally, levels of 26 to 29 percent of volatile materials are considered optimum. Thus the coals and coal blends must be tested prior to being used to make coke and steel.
Different grades of coals are mixed together so that the coking process is consistent and that the volatiles are maintained at an optimum level. This requires testing of the coal so that it meets the specific criteria to make good quality coke and to maintain a high level of coke production. One of the more important tests is Vitrinite Reflectance.
Vitrinite is a maceral and is comprised of various polymers, cellulose and lignin. Measuring the amount of light reflected by vitrinite macerals is a key test to determine the thermal maturity of the coal blend and its suitability for steel production. The procedure has been standardized by a number of international bodies including both ISO and ASTM. All of the standards require the use of a microphotometer: a device designed to measure the intensity of light reflected from a microscopic sampling area at 546 nm. The procedure is simple: the microphotometer measures the amount of light reflected from samples from the coal blend at hundreds of points after which a statistical analysis is done by the computer. The results of the statistical analysis are used to determine the amount of vitrinite in the coal blend, its thermal maturity and therefore its value for coking. As hundreds of measurements need to be done on each sample, this used to be a very time consuming process. Today, instruments such as the QDI CoalPro™ can automate this process and dramatically improve a laboratories throughput and accuracy. The results is a histogram from which the thermal maturity of the coal to be used in steel production can be determined.
For more information about the QDI CoalPro™ Vitrinite Reflectance Measurement System and petroleum source rock analysis, please visit www.microspectra.com.
About CRAIC Technologies
CRAIC Technologies, Inc. is a global technology leader focused on developing technology and methodologies for UV-visible-NIR microscopy and microspectroscopy. CRAIC Technologies creates innovative solutions, along with the very best in customer support, by listening to our customers and implementing developments that integrate operational excellence and technologic expertise. CRAIC Technologies provides solutions for customers in the forensic sciences, biology, health sciences, semiconductor, geology, nanotechnology and materials science markets whose applications demand accuracy, precision, speed and the best in expert customer support.
CRAIC Technologies, Inc.
https://microscopy-news.com/wp-content/uploads/2017/01/516b76019f18322d8d3a9ddc96987741.jpg300350Ottermediahttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngOttermedia2017-01-17 10:44:242017-01-17 10:44:24Andor launches KOMET 7 – The most advanced and powerful software solution for analysis, data management and presentation of comet assay samples
https://microscopy-news.com/wp-content/uploads/2017/01/543ba9c56fe57e856dc7f252e2ebd3ba.jpg466350Ottermediahttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngOttermedia2017-01-17 10:43:462017-01-17 10:43:46Advanced Thin Films Enters Medical Laser Optics Market
https://microscopy-news.com/wp-content/uploads/2017/01/7423894303b540804bd4b9ded95ac7a1.jpg228350otmarohttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngotmaro2017-01-17 10:43:332017-01-17 10:43:33Module transforms Raman microscopes into high throughput chemical analyzers
https://microscopy-news.com/wp-content/uploads/2017/01/ca9ed333736eb38ce4abbffcee37be60.jpg260350otmarohttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngotmaro2017-01-17 10:42:462017-01-17 10:42:46Motic Microscopes launches the new BA410E for biomedical applications
https://microscopy-news.com/wp-content/uploads/2017/01/2ed54dfbb5613dc8894327c8185309c1.jpg175350Ottermediahttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngOttermedia2017-01-17 10:42:442017-01-17 10:42:44R&D 100 Award 2014 for ZEISS ELYRA P.1 with 3D-PALM
https://microscopy-news.com/wp-content/uploads/2017/01/944a198042025732e6e8fb5a715d48c5.jpg243350otmarohttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngotmaro2017-01-17 10:41:572017-01-17 10:41:57Motic Microscopes presents the new AE31E for microbiology
https://microscopy-news.com/wp-content/uploads/2017/01/3725b94ba62d8e2205f5f20b3cdee1ee.jpg463350Ottermediahttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngOttermedia2017-01-17 10:41:372017-01-17 10:41:37CRAIC Technologies Website: A Resource for UV-Visible-NIR and Raman Microspectroscopy
https://microscopy-news.com/wp-content/uploads/2017/01/1affabb625a5c37519bafa89fedc162e.jpg86350otmarohttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngotmaro2017-01-17 10:41:102017-01-17 10:41:10Imaging companies in Europe shoulder-to-shoulder with life scientists
https://microscopy-news.com/wp-content/uploads/2017/01/341633931c01418c4fa8e0a90a8236d4.jpg139350otmarohttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngotmaro2017-01-17 10:39:052017-01-17 10:39:05XIMEA unveils Thunderbolt™ 2 high speed cameras with IMX174 and CMV20000
https://microscopy-news.com/wp-content/uploads/2017/01/22b06d4094468fc910406cd44d96ec1f.jpg181350Ottermediahttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngOttermedia2017-01-17 10:37:192017-01-17 10:37:19Dolomite´s new microfluidic system showcases droplet merging at nanoliter sample scale
https://microscopy-news.com/wp-content/uploads/2017/01/a5d0c77f7619812a129b2a4e6a9cb90b.jpg234350otmarohttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngotmaro2017-01-17 10:36:522017-01-17 10:36:52Point Grey´s Latest Blackfly® GigE PoE Camera Features Popular High Sensitivity VGA CCD
https://microscopy-news.com/wp-content/uploads/2017/01/a77db128b10a613c26b9e4dbea5dae02.jpg220350Ottermediahttps://microscopy-news.com/wp-content/uploads/2017/01/Microscopy-news_logo_microscope_news.pngOttermedia2017-01-17 10:36:392017-01-17 10:36:39Point Grey Launches New Grasshopper®3 Family of High Resolution GigE Vision™ PoE Cameras