Erstwhile Sesa Kembla Coke Company Limited (SKCCL); a division of Sesa Goa Limited was formed in 1993 to address the need to produce metallurgical coke internally. It produces a range of coke fractions from over 70 mm for foundries, 20 mm to 60 mm for blast furnaces and 6 mm to 25 mm for the ferrous alloy industries. Approximately 65% of total production of metallurgical coke is consumed by Sesa Industries Limited for its pig iron production and the remainder is sold to customers primarily located in India.
Our metallurgical coke plant is strategically situated at Amona and on the banks of the Mandovi River, which has 84 ovens with an annual production capacity of 280,000 tonnes per annum.
We are expanding our Met-coke production capacity by another 280,000 tonnes per annum which will make our total Met-coke production capacity of 560,000 tonnes per annum post the current expansions.
Sesa Goa's metallurgical coke division, which was incorporated from the erstwhile Sesa Kembla Coke Company Limited (SKCCL) on 12 August 1993 incorporated in India as a private limited company for the manufacture of low ash metallurgical coke with a 60% equity stake held by SGL. It was initially started as a joint venture coke manufacturing company in collaboration with Kembla Coal and Coke Limited of Australia. In 1997, SKCCL became a 100% subsidiary of SGL and was merged with SGL with effect from 1 April 2004.
Our metallurgical coke division was started in order to address the need to produce metallurgical coke internally thus avoiding costly imports from abroad. A substantial cost element in the production of pig iron is metallurgical coke. For the long-term successful operation of the pig iron business, it was recognised by the company that it was necessary not only to gain control of this component of cost but also to ensure stable supply. In pursuance of this objective, the Sesa Group decided to set up a coke making operation. Due to the Group's sensitivity to aspects of pollution and Goa being a major tourist destination, a decision was taken in favour of Non-Polluting Non-Recovery Australian Technology.
Our metallurgical coke plant at Amona produces a range of coke fractions from over 70 mm for foundries, 20 mm to 60 mm for blast furnaces and 6 mm to 25 mm for the ferrous alloy industries.
Our production consists mainly of low ash coke and we import 100% of low ash coking coal each year mainly Australia. In order to ensure a stable raw material supply, we have long-term supply contracts for the procurement of this coal. The cost of the input coal blend is the single most important cost component for the production of coke. At Sesa utmost care is taken to monitor the incoming coal from the coalfields to the load port. The coal is carefully blended with accurate PLC controls to ensure the best final product. All final products are tested in our own laboratories for chemical properties, i.e., CRI, CSR and M10.
It is carefully blended to produce the desired resultant high quality low ash metallurgical coke. The technology used is the cost-effective Sesa Energy Recovery Coke Making Technology. This process produces excellent quality of coke for a given coal blends and has the lowest pollution levels of comparable technologies.
The Sesa coke making technology is a two-product process, high quality metallurgical coke as the main product, the sensible heat of the exhaust flue gas as a co-product that can be optimally utilized for production of clean electricity/power, the project merits substantial carbon credits.
Electric power for SGL and SIL is supplied by Goa Energy Pvt Ltd ("GEPL") under an agreement among Sesa Kembla Coke Company Limited (which was merged with SGL in 2004), Videocon International Limited, GEPL, SIL and SGL. GEPL is an independent power producer generating power from the waste gases of our metallurgical coke plant and the blast furnace gas from SIL.
At the environment friendly Amona plant, negative pressure in the ovens ensures no polluting leakages. Moreover, complete combustion of volatiles at 1300Â°C ensures break up of hydrocarbons into combustible compounds that are fully burnt without polluting.
Our coke ovens are operating at full rated capacity and the coke is of excellent quality as can be seen from the specifications. For details Click here
The superior quality in terms of CRI and CSR is produced as a result of the relatively higher operating temperatures and longer coking cycle. A special feature of the technology is the extremely low levels of air pollution achieved as the ovens operate under negative pressure and at a temperature at which all potential pollutants are broken down into combustible compounds.