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All Journal LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI Scientific Contributions Oil and Gas
Djainuddin Semar
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Environmental Science

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Pengaruh TEL dan Amino Benzena Tehadap Angka Oktana Bensin Produk Kilang Cilacap Djainuddin Semar
Lembaran Publikasi Minyak dan Gas Bumi Vol. 21 No. 3 (1987): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Metanol yang dicampur dengan dsar sebagai bahan bakar motor bensin di Indonesia, mempunyai harapan besar jika dilihar dari sifat kimianya. Penambahan amino benzena atau TEL ke dalam contoh yang dibuat dari campuran metanol dan besnin dasar produksi kilang Cilacap, mengahsilkan bahan bakar untuk motor bensin yang memenuhi syarat spesifikasi bensin premium Indonesia.
Pengaruh Kandungan Sulfur di Dalam Bahan Bakar Terhadap Emisi Gas SO2 di Lingkungan dan Berbagai Pengaruhnya Djainuddin Semar
Lembaran Publikasi Minyak dan Gas Bumi Vol. 20 No. 2 (1986): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Aplikasi bahan bakar minyak dan batubara pada suatu mesin sebagai bahan bakar, akan dapat mempengaruhi kualitas udara sekitar akibat gas buangnya. Dengan demikian mempengaruhi kehidupan manusia, hewan dan tumbuh-tumbuhan. Faktor utama yang mengakibatkan pencemaran udara adalah gas sulfur dioksida yang mahal biaya untuk menanggulanginya. Adalah suatu keuntungan bagi Indonesia yang memiliki minyak dan batu bara dengan kadar sulfur yang rendah.
Pencemaran Oleh Raksa dan Senyawanya Anton L. Wartawan; Djainuddin Semar
Lembaran Publikasi Minyak dan Gas Bumi Vol. 19 No. 2 (1985): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Penilaian pencemaran itu sebenarnya relatif, tergantung dari mana kita mneropongnya, apakah dari kepentingan industri atau dari kepentingan lain, dan juga sejauh mana toleransi yang kita berikan terhadap lingkungan yang kita tinjau.
THE INFLUENCE OF OLEFIN CONTENT IN GASOLINE AGAINST DEPOSIT BUILD UP ON INTAKE VALVE OF MOTOR BIKE ENGINE Nur Ahadiat; Djainuddin Semar
Scientific Contributions Oil and Gas Vol 33 No 1 (2010)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.33.1.948

Abstract

The specification of gasoline 91, according to Dirjen Migas decree No. 3674 K/24/DJM/2006 dated March,17 2006 define the limit (maximum) of aromatic content 50%volume, and benzene 5.0% volume, but does not define boundary for olefin content as its is regulated in others countries. Olefin compound happened to be saturated hydrocarbon, its has higher octane number, unstable, produces gum that later on could build up as deposit on intake valve of combustion chamber or nozzle tip of fuel injection system. The objective of this study was to know how far the influence of olefin content in gasoline 91 to deposit build-up in intake valve of motor bike engine after cruising on road test for certain distance. For this purpose, the motor bike will be fueled with gasoline 91 with olefin content variations and will be compared to motor bike that cruised at the same route and distance accumulation with regular gasoline 91. Effect of several volume variety of olefin content in gasoline againts deposit development of intake valve engine will be discuss in this paper.
THE INFLUENCE OF GASOLINE’S AROMATIC CONTENT ON ENGINE COMBUSTION CHAMBER DEPOSIT FORMING Djainuddin Semar; Nur Ahadiat
Scientific Contributions Oil and Gas Vol 30 No 1 (2007)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.30.1.973

Abstract

Aromatic content in gasoline fuels should be limited due to its influencies to the cleanessof engine combustion chamber and emission of carbon monoxide, carbon dioxide andhidrocarbon. Ussually the highest aromatic content mean more higher its benzene contentand it will couse increase of air pullotion. According to specification of gasoline 91(SKNo. 3674 k/24/DJM/2006), maximum aromatic content is 50 % volume. Those specificationconform to catagory 1 of World Wide Fuel Charter (WWFC). However, aromatic and benzenecontent test on domestic gasoline in Indonesia obviously fulfil maximum limit for gasolinecatagory 2 of WWCF. Effect of several volume variaties of aromatic content in gasoline91 againts deposit development and cleaness (rating) of engine combution chamberwill be discuss in this paper.
THE EFFECT ADDITION OF LSWR INTO FUEL OILS AGAINST ALTERATION ITS PHYSICALS AND CHEMICALS PROPERTIES Djainuddin Semar; Nur Ahadiat
Scientific Contributions Oil and Gas Vol 30 No 3 (2007)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.30.3.980

Abstract

To fulfill yearly increase National demand for fuel oils (FO), therefor this paperconducted to researched the posibility added low sulfur wax residue (LSWR) into Nationalfuel oil comersial to some percentage volume againts its characteristic changes.Base on its pour point, the fuel oils modification formula, named FO-90 that has pourpoint 90oF, this formula content 6% volume LSWR.The laboratory test result, shown that nearly all characteristic fuel oils modification isconform with current domestic fuel oils specification 2, issued by Directorate GeneralOils and Gas on behalf of Indonesian goverment in their SK No. 03/P/DM/MIGAS/1986dated April 14, 1986.This paper proposes fuel oils specification, as input for government policy in reformulationof Indonesian fuel oils specification which confirm with international fuel oil specification.
Co-Authors Anton L. Wartawan Emi Yuliarita Nur Ahadiat Pallawagau La Puppung