cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Wulandari
Contact Email
jurnal.lemigas@esdm.go.id
Phone
+6221-7394422
Journal Mail Official
jurnal.lemigas@esdm.go.id
Editorial Address
Jl. Ciledug Raya Kav. 109, Cipulir, Kebayoran Lama, Jakarta Selatan 12230
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
Scientific Contributions Oil and Gas
Published by LEMIGAS
ISSN : 20893361     EISSN : 25410520     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Energy
The Scientific Contributions for Oil and Gas is the official journal of the Testing Center for Oil and Gas LEMIGAS for the dissemination of information on research activities, technology engineering development and laboratory testing in the oil and gas field. Manuscripts in English are accepted from all in any institutions, college and industry oil and gas throughout the country and overseas.
Arjuna Subject : Energi (semua kategori) - Teknologi Bahan Bakar
Articles 4 Documents
 1 
Search results for , issue "Vol 14 No 2 (1991)" : 4 Documents clear
TRENDS AND DEVELOPMENT OF PETROLEUM FUEL QUALITIES IN INDONESIA E. Jasjfi
Scientific Contributions Oil and Gas Vol 14 No 2 (1991)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.14.2.1122

Abstract

Petroleum fuels must meet the technical requirement of their intended uses. In that sense, the technical description of each type of petroleum fuels in different countries are basically similar.
MECHANISM OF HEXANE DEHYDROCYCLIZATION TO BENZENE USING BI-FUNCTIONAL REFORMING CATALYST Abdul Salim Nasution
Scientific Contributions Oil and Gas Vol 14 No 2 (1991)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.14.2.1123

Abstract

The Mechanism of n. hexane dehydrocyclization reaction to benzene has beenstudied with pure hydrocarbons and synthetic naphtha feedstock at the operating conditions: T = 400° - 520°C PT = 10 – 30 kg/cm2 and H2/HC = 4-10 mole/mole using a Catatest Unit operated in a continuous system. The results show that n, hexadiene has been formed as a mayor source of the intermediate molecule of the methylcycloamil ion, an optimum metal site activity was observed for a given acid-site of bi-functional reforming catalyst and – 1 (minus one) of the total reaction order of n. hexane dehydrocyclization to benzene.
THE EFFECT OF SULFUR – CONTAINING COMPOUNDS ON THE STABILITY OF DIESEL FUELS Zuhdan Fathoni. A; Batts. B. D; Sprecher. R. F; Veloski. G
Scientific Contributions Oil and Gas Vol 14 No 2 (1991)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.14.2.1124

Abstract

A high-resolution low-voltage mass spectrometric study has been carried out on the sulfur-containing fractions of fresh diesel fuel and on samples aged at 43°C in borosilicate bootles (ASTM D 4625 test) for periods of 6.5, 13, 19,5 and 26 weeks, and at 80°C for periods of 0.5, 1, 1.5,  2, 3, and 4 weeks. Homologous series of benze-and di benzothiophenes are the principal sulphur-containing compounds were detected. The concentrations of all species present with aging were monitored and the role of each compound in the gum-forming process assessed.
THE USE OF COAL AS FUEL FOR CEMENT MANUFACTURING AT PT. SEMEN GRESIK Sumarwanto Sumarwanto
Scientific Contributions Oil and Gas Vol 14 No 2 (1991)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.14.2.1125

Abstract

The conversion of fuel type, from oil to coal has considerable consequence as coal has very different combustion characteristics from oil. As the price of coalnis much lower, the process is viable.The use of coal as fuel in the cement industry requires more effort in technological treatment, such as: installationof the grinding plant, modification of the existing equipment, and the monitoring and continuous adjusting the blend. As the “ash” in the coal used for firing will combine with the raw mix during burning and thus causes a quite considerable change in the composition of the clinker. The combination of different blends of coal with different ash contents has to be carefully monitored to ensure clinker quality.

Page 1 of 1 | Total Record : 4

 1 

Filter by Year

1991 1991


Reset
Filter By Issues
All Issue Vol 49 No 1 (2026) Vol 48 No 4 (2025) Vol 48 No 3 (2025) Vol 48 No 2 (2025) Vol 48 No 1 (2025) Vol 47 No 3 (2024) Vol 47 No 2 (2024) Vol 47 No 1 (2024) Vol 46 No 3 (2023) Vol 46 No 2 (2023) Vol 46 No 1 (2023) Vol 45 No 3 (2022) Vol 45 No 2 (2022) Vol 45 No 1 (2022) Vol 44 No 3 (2021) Vol 44 No 2 (2021) Vol 44 No 1 (2021) Vol 43 No 3 (2020) Vol 43 No 2 (2020) Vol 43 No 1 (2020) Vol 42 No 3 (2019) Vol 42 No 2 (2019) Vol 42 No 1 (2019) Vol 41 No 3 (2018) Vol 41 No 2 (2018) Vol 41 No 1 (2018) Vol 40 No 3 (2017) Vol 40 No 2 (2017) Vol 40 No 1 (2017) Vol 39 No 3 (2016) Vol 39 No 2 (2016) Vol 39 No 1 (2016) Vol 38 No 3 (2015) Vol 38 No 2 (2015) Vol 38 No 1 (2015) Vol 37 No 3 (2014) Vol 37 No 2 (2014) Vol 37 No 1 (2014) Vol 36 No 3 (2013) Vol 36 No 2 (2013) Vol 36 No 1 (2013) Vol 35 No 3 (2012) Vol 35 No 2 (2012) Vol 35 No 1 (2012) Vol 34 No 3 (2011) Vol 34 No 2 (2011) Vol 34 No 1 (2011) Vol 33 No 3 (2010) Vol 33 No 2 (2010) Vol 33 No 1 (2010) Vol 32 No 3 (2009) Vol 32 No 2 (2009) Vol 32 No 1 (2009) Vol 31 No 3 (2008) Vol 31 No 2 (2008) Vol 31 No 1 (2008) Vol 30 No 3 (2007) Vol 30 No 2 (2007) Vol 30 No 1 (2007) Vol 29 No 3 (2006) Vol 29 No 2 (2006) Vol 29 No 1 (2006) Vol 28 No 3 (2005) Vol 28 No 2 (2005) Vol 28 No 1 (2005) Vol 27 No 3 (2004) Vol 27 No 2 (2004) Vol 27 No 1 (2004) Vol 26 No 2 (2003) Vol 26 No 1 (2003) Vol 25 No 3 (2002) Vol 25 No 2 (2002) Vol 25 No 1 (2002) Vol 24 No 2 (2001) Vol 24 No 1 (2001) Vol 23 No 3 (2000) Vol 23 No 2 (2000) Vol 23 No 1 (2000) Vol 22 No 2 (1999) Vol 22 No 1 (1999) Vol 21 No 2 (1998) Vol 21 No 1 (1998) Vol 18 No 2 (1995) Vol 18 No 1 (1995) Vol 17 No 1 (1994) Vol 16 No 1 (1993) Vol 15 No 1 (1992) Vol 14 No 2 (1991) Vol 14 No 1 (1991) Vol 13 No 1 (1990) Vol 12 No 1 (1989) Vol 11 No 1 (1988) Vol 10 No 3 (1987) Vol 10 No 2 (1987) Vol 10 No 1 (1987) Vol 9 No 1 (1986) Vol 8 No 2 (1985) Vol 8 No 1 (1985) Vol 7 No 2 (1984) Vol 7 No 1 (1984) Vol 6 No 1 (1983) Vol 5 No 2 (1982) Vol 5 No 1 (1982) More Issue