Effects of Different Coals for Co-Combustion with Palm Oil Waste on Slagging and Fouling Aspects

Hariana, Hariana; Karuana, Feri; Prabowo,; Hilmawan, Edi; Darmawan, Arif; Aziz, Muhammad

doi:10.1080/00102202.2022.2152684

Cited by 16 publications

(2 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ash derived from several types of biomass is highly concentrated with reactive chemical substances, including sodium, potassium, sulfur, phosphorus, and chlorine, potentially resulting in increased corrosion (Basu, 2015). Based on the Another study shows that the addition of certain biomass waste tends to increase slagging fouling compared to coal combustion (Hariana et al, 2022;Putra et al, 2024;. This shows the need to consider the increased risk of slagging and fouling under conditions of a higher co-firing ratio.…”

Section: Slagging Fouling Corrosion and Agglomerationmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

Section: Slagging Fouling Corrosion and Agglomerationmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…Experimental techniques were used to assess the combustion performance of various types of solid fuel blends used in pulverised coal-fired boilers [24]. Several empirical indices based on volatile matter constituents, fuel ratios, and maceral compositions were also built from the experimental results in order to empirically predict the slagging, fouling, ignitability, flame stability, and burning of coal-OPWs [25].…”

Section: Introductionmentioning

confidence: 99%

Oil Palm Wastes Co-firing in an Opposed Firing 500 MW Utility Boiler: A Numerical Analysis

Rahman

Yusup

Chin

et al. 2023

CFDL

View full text Add to dashboard Cite

Malaysia is rich in palm oil plantations, where oil palm wastes (OPWs) are one of the readily accessible biomass resources. OPWs has the potential to be used as a fuel for electricity generation. Hence, the evaluation of OPWs co-firing for one of Malaysia's 500 MW utility boilers was executed numerically. Three types of OPWs were tested including empty fruit bunches (EFB), palm kernel shell (PKS), and palm mesocarp fibres (PMF). The predicted furnace exit gas temperature (FEGT) from the numerical model was validated against the actual FEGT from the power plant where the current boiler is situated, revealing a difference of less than 10%. The nose area temperature was predicted to exceed the cap of 1200°C in OPWs co-firing cases due to higher volatile matter (VM) in OPWs than the baseline of pure coal case, leading to higher levels of volatile release. When co-firing with OPWs, the predicted unburned carbon (UBC) at the boiler's outlet is lower because OPWs-coal blends contain less fixed carbon (FC) than the pure coal blend. UBC levels were anticipated to be lower than the loss of ignition (LOI) limit in all cases, highlighting its positive impact on carbon reduction. Slightly lowered mill performance was observed as a result of the calculated OPWs fuel flow surpassing the normal operation in the power plant to make up for the low gross calorific value (GCV) of OPWs while meeting the required load from the boiler. OPWs co-firing was predicted to emit lower carbon monoxide (CO) and carbon dioxide (CO2) than baseline coal due to lower FC. Nonetheless, higher thermal nitrogen oxides (NOx) were predicted due to the higher flame temperature created by OPWs co-firing. Even so, it is recommended that the ash mineral composition be included in future numerical studies since the ash minerals may have an effect on the emitted NOx.

show abstract

Combining experimental and analytical methods to evaluate coal co-firing with sorghum waste

Hariana

Prayoga

Darmawan

et al. 2023

J Therm Anal Calorim

View full text Add to dashboard Cite

Effects of Different Coals for Co-Combustion with Palm Oil Waste on Slagging and Fouling Aspects

Cited by 16 publications

References 55 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

Oil Palm Wastes Co-firing in an Opposed Firing 500 MW Utility Boiler: A Numerical Analysis

Combining experimental and analytical methods to evaluate coal co-firing with sorghum waste

Contact Info

Product

Resources

About