Co-firing Sawdust with Coal on Indonesia's Coal-Fired Power Plant: Status and Opportunities

Cahyo, Nur; Hapsari, Tiva Winahyu Dwi; Aprilana, Almas

doi:10.1109/ict-pep57242.2022.9988833

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…The sulfation potential of chlorides was calculated and evaluated on a molar basis using 2S/Cl (Cahyo, Hapsari, et al, 2022), where a value > 8 shows a minor risk category of Clinduced active oxidation. Furthermore, the 2S/Cl ratio value < 4 denotes a major risk category of Cl-induced active oxidation.…”

Section: Evaluation Methodsmentioning

confidence: 99%

“…Biomass has been studied for fuel co-firing on CFPP, considering the particle size, energy value, density, and ash content characteristics (Cahyo, Hapsari et al, 2022). Experiments have also been conducted using sawdust in an approximately 5% blend-in boiler with a 330 MWe capacity (Tanbar et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

“…A performance assessment using sawdust biomass was carried out on 21 CFPP across the Java-Bali grid, including Sumatra and Kalimantan networks (Cahyo, Hapsari et al, 2022). The results showed that furnace exit gas temperature typically decreased during co-firing process.…”

Section: Introductionmentioning

confidence: 99%

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A techno-economic and environmental analysis of co-firing implementation using coal and wood bark blend at circulating fluidized bed boiler

Cahyo,

Sulistyowati,

Rahmanta

et al. 2024

Int. J. Renew. Energy Dev.

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The study aimed to explore the effects of biomass co-firing of coal using acacia wood bark at circulating fluidized bed (CFB) boiler coal-fired power plant with 110 MWe capacity. The analysis focused on main equipment parameters, including the potential for slagging, fouling, corrosion, agglomeration, fuel cost, and specific environmental factors. Initially, coal and acacia wood bark fuel were blended at a 3% mass ratio, with calorific values of 8.59 MJ/kg and 16.59 MJ/kg, respectively. The corrosion due to chlorine and slagging potential when using wood bark was grouped into the minor and medium categories. The results showed that co-firing at approximately 3% mass ratio contributed to changes in the upper furnace temperature due to the variation in heating value, high total humidity, and a less homogeneous particle size distribution. Significant differences were also observed in the temperature of the lower furnace area, showing the presence of a foreign object covering the nozzle, which disturbed the ignition process. A comparison of the seal pot temperature showed imbalances as observed from the temperature indicators installed on both sides of boiler, with specific fuel consumption (SFC) increasing by approximately 0.17%. During the performance test, the price of acacia wood bark was 0.034 USD/kg, resulting in fuel cost of 0.023355 USD/kWh, adding 0.061 cent/kWh to coal firing cost. Despite co-firing, the byproducts of the combustion process, such as SO2 and NOx, still met environmental quality standards in accordance with government regulations. However, a comprehensive medium- and long-term impact evaluation study should be carried out to implement co-firing operations using acacia wood bark at coal-fired power plant. Based on the characteristics, such as low calorific value, with high ash, total moisture, and alkali, acacia wood bark showed an increased potential to cause slagging and fouling.

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Section: Evaluation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A techno-economic and environmental analysis of co-firing implementation using coal and wood bark blend at circulating fluidized bed boiler

Cahyo,

Sulistyowati,

Rahmanta

et al. 2024

Int. J. Renew. Energy Dev.

Self Cite

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“…However, in Indonesia, experiments with biomass co-firing (using sawdust and rice husk) at 5% heat in PCs with varying CFPP capacities (100 MWe, 300 MWe, and 600 MWe) have indicated a reduction in PC efficiency, attributed to the lower caloric value of the fuel affecting combustion [23,24]. Additionally, employing wood pellets and sawdust for 5% heat co-firing in a 315 MWe PC boiler demonstrated a decrease in furnace exit gas temperature (FEGT) [25,26]. Furthermore, co-firing with biomass wood pellets at 1%, 3%, and 5% heat in a 330 MWe PC boiler resulted in lowered emissions of CO, NOx, and SOx, showcasing the environmental benefits of integrating biomass into traditional coal-fired energy production processes [27].…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic and Environmental Impact of Biomass Co-Firing with Carbon Capture and Storage in Indonesian Power Plants

Rahmanta,

Aprilana,

Ruly

et al. 2024

Sustainability

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This research aims to analyze the techno-economic and environmental aspects of retrofitting carbon capture and storage (CCS) technology on the existing 330 MWe pulverized coal (PC) power plant. Modeling simulations on existing PC and retrofitting PC CCS with variations in biomass co-firing (wood pellet) were carried out using the Integrated Environment Control Model (IECM) version 11.5 software. An amine-based post-combustion capture was used in this study. Coal and biomass co-firing at PC CCS reduce the net power output and thermal efficiency. Carbon neutrality occurs at 10% biomass co-firing on PC CCS. There was a 164% increase in the levelized cost of electricity (LCOE), from 0.0487 USD/kWh on PC to 0.1287 USD/kWh on PC CCS. A sensitivity analysis of fuel prices shows that at a fuel price of 25 USD/t, the LCOE of PC CCS is 0.0953 USD/kWh or higher than Indonesia’s national weighted LCOE of 0.0705 USD/kWh. The LCOE of PC CCS can be lower than the national weighted LCOE when the carbon price is higher than 80 USD/t CO2.

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Analysis of Co-firing in 25 MW CFB Boiler Coal-fired Power Plant Using Palm Kernel Shell to Support Indonesia Energy Transition

Dian,

Novendianto,

Rhamadhan

2023

2023 4th International Conference on High Voltage Engineering and Power Systems (ICHVEPS)

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Co-firing Sawdust with Coal on Indonesia's Coal-Fired Power Plant: Status and Opportunities

Cited by 6 publications

References 12 publications

A techno-economic and environmental analysis of co-firing implementation using coal and wood bark blend at circulating fluidized bed boiler

A techno-economic and environmental analysis of co-firing implementation using coal and wood bark blend at circulating fluidized bed boiler

Techno-Economic and Environmental Impact of Biomass Co-Firing with Carbon Capture and Storage in Indonesian Power Plants

Analysis of Co-firing in 25 MW CFB Boiler Coal-fired Power Plant Using Palm Kernel Shell to Support Indonesia Energy Transition

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