... Gas Hydrate Under Hot Sea Water Injection: Laboratory Case Study A. Nengkoda, Schlumberger; B... more ... Gas Hydrate Under Hot Sea Water Injection: Laboratory Case Study A. Nengkoda, Schlumberger; B. Budhijanto, S. Supranto, I. Prasetyo, S. Purwono ... increase because of heat from hot sea water injection (Figure 5), meanwhile the hydrate dissociation also have ben observed in ...
... Judul Pengarang Kata Kunci. T Hen r. Reaksi samping yang ditimbulkan Free Fatty Acid (FFA) da... more ... Judul Pengarang Kata Kunci. T Hen r. Reaksi samping yang ditimbulkan Free Fatty Acid (FFA) dan air pada proses Transesterifikasi menggunakan katalis basa pada pembuatanBiodisel. Henri. Pembimbing: Ir. Suryo Purwono , MA.Sc.,Ph.D. ...
Asean Journal of Chemical Engineering, Jan 6, 2006
... (1977), many researchers have worked experimentally and analytically on flow reversal (Boresk... more ... (1977), many researchers have worked experimentally and analytically on flow reversal (Boreskovet al. 1982, Eigenberger and Nieken 1988,Gawdzik and Rakowski 1989, Matros 1989 and 1990, Blank et al. 1990, Bathia 1991, Gupta and Bathia 1991, and Rehacek et al. 1992). ...
Several methods of enhanced oil recovery are encouraging in Indonesia as well as in the world tod... more Several methods of enhanced oil recovery are encouraging in Indonesia as well as in the world today. In compliance with this, research in the area of enhanced oil recovery (EOR) is still carried out by many examiners. In fact, experiments are becoming
Butonion natural asphalt can be used for binder in road construction after its impurities were re... more Butonion natural asphalt can be used for binder in road construction after its impurities were removed by extraction using suitable solvent. Researches on extraction of Butonion asphalt have been done. However, most of them are explorative research.
Catalytic hydrocracking of waste lubricant oil into liquid fuel fraction using ZnO, Nb 2 O 5 , ac... more Catalytic hydrocracking of waste lubricant oil into liquid fuel fraction using ZnO, Nb 2 O 5 , activated natural zeolite (ZAAH) and their modification has been investigated. The zeolite was produced in Wonosari, Yogyakarta. Activation of the zeolite was carried out by refluxing with HCl 3M for 30 min, produced the activated natural zeolite (ZAAH). The ZnO/ZAAH catalyst was prepared by impregnation of Zn onto the ZAAH by ion exchange method using salt precursor of 15 mL/min. and the ratio of catalyst/feed = 1/5. The composition of liquid products was analyzed by Gas Chromatograpy (GC).The results showed that impregnation of ZnO and/or Nb 2 O 5 on the ZAAH increased the acidity and specific surface area of catalyst. The products of the hydrocracking process were liquid, coke and gas. Conversion of liquid products was increased by the increase of catalyst acidity. The highest liquid product was produced by ZnO/Nb 2 O 5 -ZAAH catalyst, 52.97 wt-%, consist of gasoline, 38.87 wt-% and diesel, 14.10 wt-%.
... Gas Hydrate Under Hot Sea Water Injection: Laboratory Case Study A. Nengkoda, Schlumberger; B... more ... Gas Hydrate Under Hot Sea Water Injection: Laboratory Case Study A. Nengkoda, Schlumberger; B. Budhijanto, S. Supranto, I. Prasetyo, S. Purwono ... increase because of heat from hot sea water injection (Figure 5), meanwhile the hydrate dissociation also have ben observed in ...
... Judul Pengarang Kata Kunci. T Hen r. Reaksi samping yang ditimbulkan Free Fatty Acid (FFA) da... more ... Judul Pengarang Kata Kunci. T Hen r. Reaksi samping yang ditimbulkan Free Fatty Acid (FFA) dan air pada proses Transesterifikasi menggunakan katalis basa pada pembuatanBiodisel. Henri. Pembimbing: Ir. Suryo Purwono , MA.Sc.,Ph.D. ...
Asean Journal of Chemical Engineering, Jan 6, 2006
... (1977), many researchers have worked experimentally and analytically on flow reversal (Boresk... more ... (1977), many researchers have worked experimentally and analytically on flow reversal (Boreskovet al. 1982, Eigenberger and Nieken 1988,Gawdzik and Rakowski 1989, Matros 1989 and 1990, Blank et al. 1990, Bathia 1991, Gupta and Bathia 1991, and Rehacek et al. 1992). ...
Several methods of enhanced oil recovery are encouraging in Indonesia as well as in the world tod... more Several methods of enhanced oil recovery are encouraging in Indonesia as well as in the world today. In compliance with this, research in the area of enhanced oil recovery (EOR) is still carried out by many examiners. In fact, experiments are becoming
Butonion natural asphalt can be used for binder in road construction after its impurities were re... more Butonion natural asphalt can be used for binder in road construction after its impurities were removed by extraction using suitable solvent. Researches on extraction of Butonion asphalt have been done. However, most of them are explorative research.
Catalytic hydrocracking of waste lubricant oil into liquid fuel fraction using ZnO, Nb 2 O 5 , ac... more Catalytic hydrocracking of waste lubricant oil into liquid fuel fraction using ZnO, Nb 2 O 5 , activated natural zeolite (ZAAH) and their modification has been investigated. The zeolite was produced in Wonosari, Yogyakarta. Activation of the zeolite was carried out by refluxing with HCl 3M for 30 min, produced the activated natural zeolite (ZAAH). The ZnO/ZAAH catalyst was prepared by impregnation of Zn onto the ZAAH by ion exchange method using salt precursor of 15 mL/min. and the ratio of catalyst/feed = 1/5. The composition of liquid products was analyzed by Gas Chromatograpy (GC).The results showed that impregnation of ZnO and/or Nb 2 O 5 on the ZAAH increased the acidity and specific surface area of catalyst. The products of the hydrocracking process were liquid, coke and gas. Conversion of liquid products was increased by the increase of catalyst acidity. The highest liquid product was produced by ZnO/Nb 2 O 5 -ZAAH catalyst, 52.97 wt-%, consist of gasoline, 38.87 wt-% and diesel, 14.10 wt-%.
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