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All Journal International Journal of Renewable Energy Development Sainteknol : Jurnal Sains dan Teknologi
M Nasikin
Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Universitas Indonesia, Depok 16424,
Chemistry Computer Science & IT Energy

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SINTESIS ADITIF OCTANE BOOSTER DARI MINYAK BIJI KARET DENGAN PROSES PERENGKAHAN KATALITIK Pita Rangga, Wara Dyah; Kusumaningtyas, Ratna Dewi; Nasikin, M; Trisnani, Dewi
Sainteknol : Jurnal Sains dan Teknologi Vol 8, No 2 (2010): December 2010
Publisher : Unnes Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v8i2.320

Abstract

Proses sintesis aditif octane booster dari minyak biji karet melalui prosesperengkahan katalitik fasa cair yaitu H2SO4. Kondisi reaksi pada reactor batchtekanan atmosfer berpengaduk, waktu reaksi 0,5-2 jam dan suhu reaksi 160-250oC.Selama proses perengkahan katalitik menggunakan kadar katalis 1%. Kondidioptimum pada waktu 1 jam dan suhu 220oC. Karakterisasi aditif octane booster yangdihasilkan adalah densitas 0,734 g/mL, viskositas 0,027 poise, dan angka oktana101,01. Penurunan densitas dan viskositas terjadi setelah proses perengkahankatalistik dan destilasi Hal ini menunjukkan bahwa trigliserida minyak biji karetdirengkahkan menjadi molekul yang lebih kecil yang terdiri dari senyawa denganrantai C lebih pendek. Analisis FTIR sebelum dan sesudah reaksi menunjukkan reaksiperengkahan dengan produk alkena, alkana, asam alkanoat. Pada analisis GC-MSdihasilkan aditif octane booster pada C5-C12 konversi 38,67 dan yield 35,61.Kata kunci: aditif, octane booster, perengkahan katalitik, fasa cair
SINTESIS ADITIF OCTANE BOOSTER DARI MINYAK BIJI KARET DENGAN PROSES PERENGKAHAN KATALITIK Pita Rangga, Wara Dyah; Kusumaningtyas, Ratna Dewi; Nasikin, M; Trisnani, Dewi
Sainteknol : Jurnal Sains dan Teknologi Vol 8, No 2 (2010): December 2010
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v8i2.320

Abstract

Proses sintesis aditif octane booster dari minyak biji karet melalui prosesperengkahan katalitik fasa cair yaitu H2SO4. Kondisi reaksi pada reactor batchtekanan atmosfer berpengaduk, waktu reaksi 0,5-2 jam dan suhu reaksi 160-250oC.Selama proses perengkahan katalitik menggunakan kadar katalis 1%. Kondidioptimum pada waktu 1 jam dan suhu 220oC. Karakterisasi aditif octane booster yangdihasilkan adalah densitas 0,734 g/mL, viskositas 0,027 poise, dan angka oktana101,01. Penurunan densitas dan viskositas terjadi setelah proses perengkahankatalistik dan destilasi Hal ini menunjukkan bahwa trigliserida minyak biji karetdirengkahkan menjadi molekul yang lebih kecil yang terdiri dari senyawa denganrantai C lebih pendek. Analisis FTIR sebelum dan sesudah reaksi menunjukkan reaksiperengkahan dengan produk alkena, alkana, asam alkanoat. Pada analisis GC-MSdihasilkan aditif octane booster pada C5-C12 konversi 38,67 dan yield 35,61.Kata kunci: aditif, octane booster, perengkahan katalitik, fasa cair
Development of Formaldehyde Adsorption using Modified Activated Carbon – A Review Rengga, W.D.P; Sudibandriyo, M.; Nasikin, M
International Journal of Renewable Energy Development Vol 1, No 3 (2012): October 2012
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.1.3.75-80

Abstract

Gas storage is a technology developed with an adsorptive storage method, in which gases are stored as adsorbed components on the certain adsorbent. Formaldehyde is one of the major indoor gaseous pollutants. Depending on its concentration, formaldehyde may cause minor disorder symptoms to a serious injury. Some of the successful applications of technology for the removal of formaldehyde have been reported. However, this paper presents an overview of several studies on the elimination of formaldehyde that has been done by adsorption method because of its simplicity. The adsorption method does not require high energy and the adsorbent used can be obtained from inexpensive materials. Most researchers used activated carbon as an adsorbent for removal of formaldehyde because of its high adsorption capacity. Activated carbons can be produced from many materials such as coals, woods, or agricultural waste. Some of them were prepared by specific activation methods to improve the surface area. Some researchers also used modified activated carbon by adding specific additive to improve its performance in attracting formaldehyde molecules. Proposed modification methods on activation and additive impregnated carbon are thus discussed in this paper for future development and improvement of formaldehyde adsorption on activated carbon. Specifically, a waste agricultural product is chosen for activated carbon raw material because it is renewable and gives an added value to the materials. The study indicates that the performance of the adsorption of formaldehyde might be improved by using modified activated carbon. Bamboo seems to be the most appropriate raw materials to produce activated carbon combined with applying chemical activation method and addition of metal oxidative catalysts such as Cu or Ag in nano size particles. Bamboo activated carbon can be developed in addition to the capture of formaldehyde as well as the storage of adsorptive hydrogen gas that supports renewable energy. Keywords: adsorption; bamboo; formaldehyde; modified activated carbon; nano size particles
Co-Authors Dewi Trisnani E Saputra, E L Song, L M. Sudibandriyo Ratna Dewi Kusumaningtyas Wara Dyah Pita Rengga Widodo Purwanto