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Ditemukan 12 dokumen yang sesuai dengan query
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Endang Asijati Widijaningsih Ichsan
Depok: UI-Press, 2008
PGB 0009
UI - Pidato  Universitas Indonesia Library
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Jacobs, Morris B.
New York, N.Y. : Interscience, 1953
661 JAC c
Buku Teks SO  Universitas Indonesia Library
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Kurnia Kusnawidjaja
Bandung: Alumni, 1985
543 KUR p (1)
Buku Teks SO  Universitas Indonesia Library
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Harlow: Prentice Hall International, 2000
543.08 VOG
Buku Teks SO  Universitas Indonesia Library
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Santi
"[ ABSTRAK
Dalam penelitian ini, silika macro-sphere berpori disintesis dengan metode sol-gel dengan katalis asam. Na2SiO3 digunakan sebagai prekursor silika, surfaktan Oleil Bis(2-HidroksiEtil) Amin digunakan sebagai template pori, dan HCl digunakan sebagai katalis asam. Silika macro-sphere berpori terbentuk melalui tahapan : hidrolisis, kondensasi, aging, pengeringan, dan kalsinasi pada suhu 300oC, yang dilanjutkan dengan impregnasi dengan CuS sebagai bahan aktif. Karakterisasi dengan XRD dan EDS terhadap silika macro-sphere berpori terimpregnasi CuS menunjukkan masuknya bahan aktif ke dalam silika macro-sphere berpori. Silika macro-sphere berpori terimpregnasi CuS digunakan sebagai adsorben uap merkuri. Reaksi adsorpsi dilakukan dengan menggunakan rangkaian sistem tertutup yang terbuat dari peralatan gelas. Adsorpsi menunjukkan hasil yang baik terhadap senyawa merkuri maupun unsur merkuri yang didasarkan pada perbedaan massa adsorben sebelum dan setelah proses adsorpsi. Adsorpsi terjadi sebagai adsorbsi kimia dan adsorpsi fisik. Nilai adsorpsi fisik yang diperoleh adalah sebesar 5,316 mg HgCl2 per gram adsorben dan 0,196 mg Hg per gram adsorben. Nilai adsorpsi kimia yang diperoleh adalah sebesar 31,363 mg HgCl2 per gram adsorben dan 23,743 mg Hg per gram adsorben.
ABSTRACT In this research, porous silica macro-sphere was synthesized by acid catalyzed sol-gel method. Na2SiO3 was used as silica precursor, meanwhile surfactant Oleyl Bis(2-HydroxyEthyl) Amine was used as the template pores, and HCl was used as the catalyst. This porous silica macro-sphere was formed through the following steps: hydrolysis, condensation, aging, drying and calcination at 300oC, followed by impregnation by CuS as an active support. The characterization of CuS impregnated porous silica macro-sphere by XRD and EDS showed that CuS was successfully impregnated into porous silica macro-sphere. The CuS impregnated porous silica macro-sphere was used as mercury vapor adsorbent. The adsorption was performed using a closed system made of glassware. Its adsorption showed a good result, either in the form of a mercury compound or mercury element, based on the different weight of adsorbents before and after the adsorption processes. These adsorption occured as chemical adsorption and physical adsorption. The obtained physical adsorption values were 5.316 mg HgCl2 per gram adsorbent and 0.196 mg Hg per gram adsorbent, and its chemical adsorptions were 31.363 mg HgCl2 adsorption per gram adsorbent and 23.743 mg Hg adsorption per gram adsorbent., In this research, porous silica macro-sphere was synthesized by acid catalyzed sol-gel method. Na2SiO3 was used as silica precursor, meanwhile surfactant Oleyl Bis(2-HydroxyEthyl) Amine was used as the template pores, and HCl was used as the catalyst. This porous silica macro-sphere was formed through the following steps: hydrolysis, condensation, aging, drying and calcination at 300oC, followed by impregnation by CuS as an active support. The characterization of CuS impregnated porous silica macro-sphere by XRD and EDS showed that CuS was successfully impregnated into porous silica macro-sphere. The CuS impregnated porous silica macro-sphere was used as mercury vapor adsorbent. The adsorption was performed using a closed system made of glassware. Its adsorption showed a good result, either in the form of a mercury compound or mercury element, based on the different weight of adsorbents before and after the adsorption processes. These adsorption occured as chemical adsorption and physical adsorption. The obtained physical adsorption values were 5.316 mg HgCl2 per gram adsorbent and 0.196 mg Hg per gram adsorbent, and its chemical adsorptions were 31.363 mg HgCl2 adsorption per gram adsorbent and 23.743 mg Hg adsorption per gram adsorbent.]"
Depok: Universitas Indonesia, 2014
S58433
UI - Skripsi Membership  Universitas Indonesia Library
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Harris, Daniel C.
New York: W H Freeman, 1991
545 HAR q
Buku Teks  Universitas Indonesia Library
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Vassos, Basil H.
New York : John Wiley & Sons, 1983
543.4 VAS e
Buku Teks SO  Universitas Indonesia Library
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Fauziah Anggraeni
"Lapangan Delta di Mahakam cekungan lower Kutai yang sekarang dioperasikan oleh Chevron Indonesia Company telah berproduksi sejak tahun 1975. Produksi dari lapangan ini mencapai puncak produksi sebesar 31 MBO pada tahun 1991, kontribusi terbesar dari produksi tersebut berasal dari zona low resistivity. Berdasarkan data log, zona yang menghasilkan hidrokarbon biasanya terdapat pada zona yang menunjukkan nilai resistivitas yang tinggi, tetapi pada lapangan Delta yang menjadi area penelitian ini sebagian besar produksi didominasi dari zona yang mempunyai nilai resistivitas yang rendah. Berdasarkan hasil analisa menunjukkan bahwa nilai tersebut dipengaruhi oleh beberapa faktor, diantaranya keberadaan mineral pyrite (Fes2), dominasi persentase volume clay dan ketebalan pay zone, dan nilai salinitas yang lebih tinggi dibandingkan dengan zona hidrokarbon yang mempunyai nilai resistivitas yang lebih tinggi pada lapangan ini.
Persentase nilai pyrite yang terdapat pada zona low resisivity ini hanya sebesar 1.2% - 3% dari volume batuan, tetapi nilai tersebut sudah bisa menurunkan nilai resistivitas sebesar 65% lebih rendah dibandingkan dengan zona hidrokarbon yang mempunyai nilai resistivitas yang tinggi pada formasi Deltaic dan Formasi Yakin. Persentase volume clay dan ketebalan juga mempengaruhi, dominasi mineral illite pada shale dan ketebalan kurang dari 5ft akan mempengaruhi penurunan nilai resistivity sebesar 10% dibandingkan high resistivity pay zone pada formasi Deltaic dan formasi Yakin. Dari analisa laboratorium pada air formasi menunjukkan bahwa pada zona low resistivity mempunyai nilai salinitas lebih tinggi 2000ppm diandingkan formasi Deltaic dan Formasi Yakin.

Sepinggan Field in Lower Kutai Basin which is in Mahakam Block and operated by Chevron Pacific Indonesia has been produced since 1975. Hydrocarbon pay zone generally has high resistivity. Nevertheless, Sepinggan Field production is primarily from low resistivity zone which is the most contributors even for its peak production at 31 MBO in 1991. Analysis result shows that the low resistivity value of the zone is influenced by some factors. These factors are pyrite content (FeS2), clay volume percentage domination and pay zone thickness, and more saline than high resistivity pay zone salinity. Pyrite volume percentage in this low resistivity zone ranges from 1.2 to 3 %.
This value can reduce 65 % from the normal resistivity value of hydrocarbon zones from Deltaic and Yakin Formation in this field. Illite domination in clay mineral content and less than 5 ft thickness also can reduce 10 % from the normal resistivity value of Deltaic and Yakin. Formation pay zones Laboratory analysis of formation water shows that salinity of low resistivity zone has 2000 ppm higher than Deltaic and Yakin water formation salinities.
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Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2019
T54172
UI - Tesis Membership  Universitas Indonesia Library
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Hermin Sulistyarti
Malang: UB Press, 2017
540.7 HER k
Buku Teks SO  Universitas Indonesia Library
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Carr, Peter W.
New york: John Wiley & Sons, 1980
543 CAR i (1)
Buku Teks SO  Universitas Indonesia Library
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