THE PROCESS FOR HANDLING COATING OR MATERIAL DEPOSITION THAT ACCORS DURING THE UTILIZATION OF ALTERNATIVE FUELS IN CEMENT PLANT

• Main Author: Christianto, Tommy
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/86952
• Institution: Institut Teknologi Bandung

Net Zero Emission (NZE) has gained attention following the Paris Climate Agreement in 2015. This program aims to reduce environmental pollution that contributes to global warming and the reduction of greenhouse gas emissions by substituting fossil fuels with alternative fuels (AF) as a renewable energy source. The cement industry, as a producer of 5% of global carbon dioxide emissions, is under pressure to reduce emissions through the strategy of using and increasing alternative fuels as an energy source. The transition from fossil fuels to alternative fuels involves various obstacles, one of which is the accumulation of material or coating in the calciner. Therefore, an improvement is needed so that the cement industry can continue to use alternative fuels without the risk of coating formation by using a shock blower. This research has 3 experimental variables, consisting of additional shock blowers at the Down Draft Calciner (DDC) ducting from the original 13 units to 25 units, setting the shock blower timer at the DDC ducting, and replacing the shock blower outlet pipe from a hollow pipe to a nozzle. The coating sample analysis showed that SBE became the dominant cause of material accumulation in the calciner due to its low LOI, which is 40.53%, and a particle diameter >0.47cm. It causes a decrease of the Thermal Substitution Rate (TSR) due to the formation of coating in the calciner, amounting to 21.0% of the budget 25.4%, compared to previous with a TSR of 24.3% of the budget 22.0%. Subsequently, from the results of the 3 experimental variables, an increase in the Thermal Substitution Rate (TSR) was obtained in setting the shock blower timer project of 30.1% of the budget 26.0%, and a significant increase in TSR in replacing the shock blower outlet pipe from a hollow pipe to a nozzle project with 43.7% of the budget 30.0%.