Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar
in the thermal cracking of sub-bitumenous coal tar, under non-isothermic condition, the long chain paraffins would crack to form methane, propane, butane, acetylene, and hydrogen. The pyrolysis was conducted in a retort made of Stainless-steel 304, 40 cm long and 2.54 cm inside diametre, equipped wi...
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| Format: | Article |
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[Yogyakarta] : Universitas Gadjah Mada
2000
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| _version_ | 1797017852015804416 |
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| author | Perpustakaan UGM, i-lib |
| author_facet | Perpustakaan UGM, i-lib |
| author_sort | Perpustakaan UGM, i-lib |
| collection | UGM |
| description | in the thermal cracking of sub-bitumenous coal tar, under non-isothermic condition, the long chain paraffins would crack to form methane, propane, butane, acetylene, and hydrogen. The pyrolysis was conducted in a retort made of Stainless-steel 304, 40 cm long and 2.54 cm inside diametre, equipped with some type K thermocouples. A tube furnace, Thermolyne F21-100 with a power of 1350 W, was used as the heat source. The furnace was operated at low level heating rate. Based on the plug-flow reactor model and a simple pseudo single C181-138 9C2Hq +H2, a mathematical model could be
arranged as follows :
�FT �d: = D241 � X)/(1 + 9X)r (P / RT)"
dT �FT (9HFc2114�HFCiaH38)(dXIdz)U2ztD(T�Tf) dz FT (1� X)Cpci81138 + FT X Cp H2 + 9FT X Cpc2R,
with k =A exp(-E/R'/T) and FT was the molar flow rate of the tar vapour entering the reaction zone.
By solving those equations numerically and comparing the results to the experimental data, the kinetic parameters could be evaluated. The mathematical model was close to the experimental data, and it worked best at the range of the reaction temperature of 985 K to 1113 K, and at the average temperature gradient of 9,14 ° C/min. Under this condition, the value of reaction order (n) was 1.1, and the relationship between reaction rate constant and the reaction temperature could be represented by :
k = 139072 exp(-17867/R'/T).
Key words : long chain paraffins, coal-tar, thermal cracking |
| first_indexed | 2024-03-13T18:28:08Z |
| format | Article |
| id | oai:generic.eprints.org:18604 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T18:28:08Z |
| publishDate | 2000 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:186042014-06-18T00:34:26Z https://repository.ugm.ac.id/18604/ Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar Perpustakaan UGM, i-lib Jurnal i-lib UGM in the thermal cracking of sub-bitumenous coal tar, under non-isothermic condition, the long chain paraffins would crack to form methane, propane, butane, acetylene, and hydrogen. The pyrolysis was conducted in a retort made of Stainless-steel 304, 40 cm long and 2.54 cm inside diametre, equipped with some type K thermocouples. A tube furnace, Thermolyne F21-100 with a power of 1350 W, was used as the heat source. The furnace was operated at low level heating rate. Based on the plug-flow reactor model and a simple pseudo single C181-138 9C2Hq +H2, a mathematical model could be arranged as follows : �FT �d: = D241 � X)/(1 + 9X)r (P / RT)" dT �FT (9HFc2114�HFCiaH38)(dXIdz)U2ztD(T�Tf) dz FT (1� X)Cpci81138 + FT X Cp H2 + 9FT X Cpc2R, with k =A exp(-E/R'/T) and FT was the molar flow rate of the tar vapour entering the reaction zone. By solving those equations numerically and comparing the results to the experimental data, the kinetic parameters could be evaluated. The mathematical model was close to the experimental data, and it worked best at the range of the reaction temperature of 985 K to 1113 K, and at the average temperature gradient of 9,14 ° C/min. Under this condition, the value of reaction order (n) was 1.1, and the relationship between reaction rate constant and the reaction temperature could be represented by : k = 139072 exp(-17867/R'/T). Key words : long chain paraffins, coal-tar, thermal cracking [Yogyakarta] : Universitas Gadjah Mada 2000 Article NonPeerReviewed Perpustakaan UGM, i-lib (2000) Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=1398 |
| spellingShingle | Jurnal i-lib UGM Perpustakaan UGM, i-lib Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar |
| title | Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar |
| title_full | Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar |
| title_fullStr | Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar |
| title_full_unstemmed | Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar |
| title_short | Perengkahan Termal Parafin-Parafin Rantai Panjang Dari Tir Batubara = Thermal Cracking of Long Chain Paraffins fromThe Coal Tar |
| title_sort | perengkahan termal parafin parafin rantai panjang dari tir batubara thermal cracking of long chain paraffins fromthe coal tar |
| topic | Jurnal i-lib UGM |
| work_keys_str_mv | AT perpustakaanugmilib perengkahantermalparafinparafinrantaipanjangdaritirbatubarathermalcrackingoflongchainparaffinsfromthecoaltar |