ABOUT THE COURSE: In this course fundamentals of coal cleaning, coal combustion, coal gasification, environmental pollution control from coal-based industries are discussed in details. For utilization of coal in any industrial application, initially coal are cleaned/beneficiated to meet the required quality for any particular application like pre designed boiler or gasified. Further details of coal combustion theory, burning characteristics evaluation, environmental pollution control from coal based thermal power plant, coal gasification will be discussed. Few lectures will discuss about the IGCC and coal bed methane.INTENDED AUDIENCE: UG & PG students of Chemical Engineering, Mining Engineering, Fuel & Energy Engineering, Environmental Engineering PREREQUISITES: GENERAL KNOWLEDGE OF CHEMICAL REACTIONS AND COALINDUSTRY SUPPORT: NTPC, COAL INDIAL LIMITED, POWER AND STELL INDUSTRIES
Overview
Syllabus
Week 1: Coal quality parameters: Coal quality parameters for utilization in thermal power plant, cement, steel and DRI plant. Concept and role of CGV, ash, volatile matter etc during utilization. Types of sulfur present in coal and their impact.Week 2:Cleaning of coal: Precombustion cleaning, Jiging, dense media cyclone, spiral concentrator, froth flotation, oil agglomeration, Biological and chemical cleaning methods.Week 3:Combustion Fundamentals. Shrining core model, Burning profile of coal, Heat release rate, burning time, unburned carbon control.Week 4:Role of volatile matter, fixed carbon, coal particle density, particle size, primary air, secondary air etc. on coal combustion.Week 5:Coal combustion calculationsWeek 6:Pulverized and fluidized bed combustor, AFBC, CFBC, PFBC etc.Week 7:Emission control from combustion utilities: Fly ash, SOx and NOx control strategies during combustion and after combustionWeek 8:Use of ESP, Cyclones, Filters and settling chambers. Oxy fuel combustion.Week 9:Coal gasification: Gasifying agents: oxygen, air, steam, reactions involved in gasification. Effect of fuel properties on product, blending of fuels. Syn gas, Fuel gas.Week 10:Fixed bed, moving bed, fluidized bed, entrained bed etc.Product gas cleaning and energy utilization, removal of H2S, NH3, tar, suspended particulate matter.Week 11:Introduction to coal based power generation, Rankin cycle, gas turbine, combined cycle. Combined cycle power generation (IGCC)Week 12:Underground coal gasification (UCG), Coal bed methane, recovery of methane from CBM (Coal Bed Methane), CMM (Coal Mine Methane), AMM (Abandoned Mine Methane).
Taught by
Prof. Barun Kumar Nandi
