Process for the production of low ash fuel
AssigneeCouncil of Scientific and Industrial Research
InventorsParas Nath Sinha, Partha Sengupta, Kali Sankar Bhattacharya
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Abstract
The present invention describes a process for the production of low ash fuel using calcined petroleum coke by crushing and screening of calcined petroleum coke below 3 mm size, mixing the crushed and screened materials to achieve a bulk density in the range of 760 to 800 kg/m3, mixing 10-100% of the resultant calcined petroleum coke with 0 to 50% coke breeze, pre-soaking the mix so obtained with 5-10% water, mixing with hinder followed by kneading in presence of live stream, then briquetting and curing of the raw briquettes in a furnace in a controlled oxidising atmoshpere to obtain the low ash fuel.
Claims5
A process for the production of low ash fuel using calcined petroleum coke which comprises crushing and screening calcined petroleum coke having a particle size below 3 mm mixing the crushed and screened materials to achieve a bulk density in the range 760 to 800 kg/m3, optionally mixing the resultant calcined petroleum coke with coke breeze to produce a mix containing at least 10% calcined petroleum coke, presoaking the petroleum coke particles or the mix thereof with coke breeze with 5-10% water, mixing with binder followed by kneading in the presence of live steam, then briquetting and curing the raw briquettes in a furnace in a controlled oxidizing atmosphere to obtain the low ash fuel.
Dependencies are inferred from the claim text.