NAINGGOLAN, Irwan Firmanto and Hadiyanto, Hadiyanto and Utomo, M.S.K. Tony Suryo (2023) ANALISIS PERFORMANCE CO-FIRING DENGAN MENGGUNAKAN CANGKANG SAWIT PADA CHAIN GRATE STOKER COAL FIRED POWER PLANT 2X7 MW. Masters thesis, UNIVERSITAS DIPONEGORO.

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Abstract

Co-firing adalah upaya untuk mengurangi penggunaan bahan bakar fosil (batubara) dari pembangkit listrik tenaga uap. Penambahan biomassa sebagai bahan bakar parsial pada boiler untuk mengurangi konsumsi batubara sehingga mengurangi emisi karbondioksida yang dapat berdampak pada efek rumah kaca. Penelitian co-firing ini mengimplementasikan 5-20% cangkang sawit. Emisi mengalami penurunan yang sangat signifikan pada penggunaan biomassa sebesar 20%, Karbon dioksida (CO2) dari 7% menjadi 0,9% dan karbon monoksida (CO) dari 759 Mg/Nm3 menjadi 105 Mg/Nm3. Indeks slagging masih dalam batas aman. Indeks fouling pada saat coal firing dan co-firing 5%, 15% dan 20% berada pada kategori tinggi, sedangkan co-firing sebesar 10% pada kategori berat. Rasio basa terhadap asam selama uji co-firing 5%, 10% dan 15% dalam kategori tinggi, sedangkan co-firing 20% masih dalam batas aman. Potensi korosi akibat adanya klorin adalah minor oksidasi aktif yang diinduksi Cl. Sampel sifat toksik yang diperoleh dari berbagai co-firing masih dalam kondisi aman dan memenuhi baku mutu.
Keywords: co-firing, cangkang sawit, emisi, gas efek rumah kaca, Analisa performance

Co-firing is the efforts to reduce the use of fossil fuel (coal) form steam power plant. Adding biomass as a partial fuel to the boiler to reduce coal consumption thereby reducing carbon dioxide emissions which can have an impact on the greenhouse effect. This co-firing study implemented 5-20% palm kernel shells. The emission has decreased very significantly in the use of biomass by 20%, Carbon dioxide (CO2) from 7% to 0.9% and carbon monoxide (CO) from 759 Mg/Nm3 to 105 Mg/Nm3. Slagging index during is still within safe limits. Fouling index when coal firing and co-firings 5%, 15% and 20% are in the high category, while co-firing is 10% in the severe category. Base to acid ratio during co-firing test 5%, 10% and 15% in the high/severe category, while co-firing is 20% is still within safe limits. The potential for corrosion due to the presence of chlorine is Cl-induced active oxidation minor. The toxic properties samples obtained from various co-firings are still in safe condition and meet quality standards.
Keywords: co-firing; palm kernel shells; emissions; global greenhouse gas; performance analysis

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