Analisis Pengaruh Membran Keramik Berbasis Zeolit dengan Fe Powder pada Sistem Pengendali Emisi NOx

Christanto, Sandi (2025) Analisis Pengaruh Membran Keramik Berbasis Zeolit dengan Fe Powder pada Sistem Pengendali Emisi NOx. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5019211150-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (2MB) | Request a copy

Abstract

Emisi NOx dari mesin diesel merupakan penyumbang utama polusi udara yang berdampak signifikan terhadap kesehatan manusia dan lingkungan. Penelitian ini mengembangkan catalytic converter berbahan membran keramik berbasis zeolit dan Fe powder sebagai alternatif ekonomis pengganti katalis logam mulia untuk mengendalikan emisi NOx pada mesin diesel satu silinder berbahan bakar Dexlite. Melalui eksperimen dengan empat variasi komposisi katalis (standar tanpa katalis, zeolit 100%, campuran zeolit 75% + Fe powder 25%, dan zeolit 50% + Fe powder 50%) pada rentang beban 1000–4000 watt dan RPM 1600–2000, diperoleh hasil komposisi zeolit 50% + Fe powder 50% mencapai reduksi NOx tertinggi 53,1% (155,2 ppm vs standar tanpa katalis 331 ppm) pada beban 1000 watt-RPM 1600 akibat aktivasi optimal Fe di suhu rendah (<250°C), disusul kinerja signifikan 34,2% (269 ppm vs standar tanpa katalis 408,8 ppm) pada beban 2000 watt-RPM 1800 melalui sinergi adsorpsi reduksi dan suhu operasi ideal (350-450°C). Sementara itu, zeolit 75% + Fe powder 25% menunjukkan kinerja paling stabil dengan reduksi 27,75% (417,6 ppm vs standar tanpa katalis 578 ppm) pada beban 3000 watt–RPM 2000 dan 21,37% (323 ppm vs standar tanpa katalis 410,8 ppm) pada beban 2000 watt-RPM 2000. Temuan kritis menunjukkan penambahan Fe meningkatkan kinerja katalis secara eksponensial dimana peningkatan 226% dibandingkan zeolit murni. Dengan demikian, dapat disimpulkan bahwa teknologi ini berpotensi sebagai solusi aftertreatment berbiaya rendah dengan efektivitas reduksi NOx mencapai 53,1% pada kondisi spesifik.
====================================================================================================================================
NOx emissions from diesel engines are a serious cause of air pollution, harming both human health and the environment. This study creates a cheaper ceramic membrane-based catalytic converter using zeolite and Fe powder instead of expensive noble metal catalysts to reduce NOx emissions in a single-cylinder diesel engine running on Dexlite. Four catalyst types were tested (no catalyst, 100% zeolite, 75% zeolite + 25% Fe powder, and 50% zeolite + 50% Fe powder) under different loads (1000–4000 watts) and engine speeds (1600–2000 RPM). The best result came from the 50% zeolite + 50% Fe powder mix, which cut NOx by 53.1% (155.2 ppm vs. 331 ppm without a catalyst) at 1000 watts and 1600 RPM because Fe works well at low temperatures (<250°C). It also reduced NOx by 34.2% (269 ppm vs. 408.8 ppm) at 2000 watts and 1800 RPM due to a combination of adsorption, reduction, and the right temperature (350-450°C). The 75% zeolite + 25% Fe powder mix was more stable, lowering NOx by 27.75% (417.6 ppm vs. 578 ppm) at 3000 watts and 2000 RPM and by 21.37% (323 ppm vs. 410.8 ppm) at 2000 watts and 2000 RPM. Key results show that adding Fe greatly improves the catalyst’s performance (226% better than pure zeolite). This makes the technology a promising low-cost solution, with NOx reduction reaching up to 53.1% in certain conditions.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Catalytic Converter, Emisi NOx, Fe Powder, Mesin Diesel, Zeolit, Catalytic Converter, Diesel Engine, Fe Powder, NOx Emissions, Zeolite
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD883.5 Air--Pollution T Technology > TJ Mechanical engineering and machinery > TJ785 Internal combustion engines. Spark ignition T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Sandi Christanto
Date Deposited:	31 Jul 2025 08:34
Last Modified:	31 Jul 2025 08:34
URI:	http://repository.its.ac.id/id/eprint/124986

Actions (login required)

View Item