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All Journal Swara Patra : Majalah Ilmiah PPSDM Migas Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
A.S. Nasution
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Mechanical Engineering

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PRODUCTION OF ENVIRONMENTAL FRIENDLY FUEI IN INDONESIAN REFINERY A.S. Nasution; Oberlin Sidjabat; Abdul Gafar; Rasdinal Ibrahim; Morina
Scientific Contributions Oil and Gas Vol. 28 No. 2 (2005): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

Worldwide crude supplies are experiencing a mod-est trend toward heavier and high sulfur content'4>. Theaverage annual demand growth rate for light products(gasoline, kerosene and diesel oil) is higherthan that forresidual fuel oil(2). Therefore, converting additional bot-toms into light product by either thennal < >r catalytic pro-cesses will be needed
THE MANAGEMENT OF SPENT CATALYST IN RCC/FCC UNITS IN ASEAN REFINERIES A.S. Nasution; E. Jasjfi
Scientific Contributions Oil and Gas Vol. 28 No. 3 (2005): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

Catalytic cracking processes convert hcavy feed-stock (heavy distillate. residue) into gasoline and lighteyele stock for middle distillate components.
ROLE OF CATALYTIC REFORMING PROCESS FOR GASOLINE PRODUCTION IN ASEAN REFINERIES A.S. Nasution; E. Jasjfi
Scientific Contributions Oil and Gas Vol. 28 No. 3 (2005): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

The crude oils processed in refineries range fromsweet crudes, such as Southeast Asian light Crudes,to sour crude, suck as Middle East. Far East, andPersian Gulf"1.
Efektivitas Katalis Padat Berpori pada Proses Hidrokonversi a.s. Nasution; E. Jasjfi
Lembaran Publikasi Minyak dan Gas Bumi Vol. 40 No. 1 (2006): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Efektivitas katalis padat berpori pada proses hidrokonversi dipengaruhi oleh ukuran molekul umpan dan ukuran butir katalis- Molekul umpan dan butir katalis, yang berukuran besar dapat menurunkan laju difusi umpan dari fase bulk ke dalam pori katalis sehingga efektivitas katalis tersebut menjadi rendah (F <1)- Penurunan energi aktivasi reaksi dengan katalis berukuran besar menunjukkan suatu indikasi adanya pengaruh laju diffusi umpan dari fase bulk ke dalam pori katalis tersebut.- Efektivitas katalis padat berpori dapat mendekati (F  1), jika kecepatan difusi umpan dari fase bulk ke dalam pori katalis lebih besar daripada kecepatan reaksi umpan pada inti-inti aktif katalis.
Co-Authors Abdul Gafar Abdul Haris Chairil Anwar E. Jasjfi Evita H Legowo Evita H. Legowo Morina Morina Morina Oberlin Sidjabat Rasdinal Ibrahim