Reduction of Ash Content in Raw Coal Using Acids and Alkali
Ash, an inorganic matter present in coal is amenable for dissolution using suitable reagents. Thus the dissolution of ash and its subsequent removal reduces the release of many toxic elements into the environment by coal based industries. Removal of ash also enhances the calorific value. In the pres...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2010/906192 |
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| author | K. H. Shivaprasad M. M. Nagabhushana C. Venkataiah |
| author_facet | K. H. Shivaprasad M. M. Nagabhushana C. Venkataiah |
| author_sort | K. H. Shivaprasad |
| collection | DOAJ |
| description | Ash, an inorganic matter present in coal is amenable for dissolution using suitable reagents. Thus the dissolution of ash and its subsequent removal reduces the release of many toxic elements into the environment by coal based industries. Removal of ash also enhances the calorific value. In the present investigation an attempt has been made to reduce the ash content of raw coal obtained from nearest thermal power by using hydrochloric acid, sulfuric acid and sodium hydroxide. A series of leaching experiments were conducted on coal of different size fractions by varying the parameters like concentration, temperature and time of leaching. The results indicate that it is possible to remove nearly 75% of ash from coal sample by leaching. |
| format | Article |
| id | doaj-art-98bf38944dbd43b79bae46c293390aa7 |
| institution | OA Journals |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-98bf38944dbd43b79bae46c293390aa72025-08-20T02:10:00ZengWileyE-Journal of Chemistry0973-49452090-98102010-01-01741254125710.1155/2010/906192Reduction of Ash Content in Raw Coal Using Acids and AlkaliK. H. Shivaprasad0M. M. Nagabhushana1C. Venkataiah2Department of Industrial Chemistry, P.G.Centre, Bellary-583104, Karnataka, IndiaDepartment of Industrial Chemistry, P.G.Centre, Bellary-583104, Karnataka, IndiaDepartment of Applied Geology, P.G.Centre, Sandur-583119, Bellary (Dist.), Karnataka, IndiaAsh, an inorganic matter present in coal is amenable for dissolution using suitable reagents. Thus the dissolution of ash and its subsequent removal reduces the release of many toxic elements into the environment by coal based industries. Removal of ash also enhances the calorific value. In the present investigation an attempt has been made to reduce the ash content of raw coal obtained from nearest thermal power by using hydrochloric acid, sulfuric acid and sodium hydroxide. A series of leaching experiments were conducted on coal of different size fractions by varying the parameters like concentration, temperature and time of leaching. The results indicate that it is possible to remove nearly 75% of ash from coal sample by leaching.http://dx.doi.org/10.1155/2010/906192 |
| spellingShingle | K. H. Shivaprasad M. M. Nagabhushana C. Venkataiah Reduction of Ash Content in Raw Coal Using Acids and Alkali E-Journal of Chemistry |
| title | Reduction of Ash Content in Raw Coal Using Acids and Alkali |
| title_full | Reduction of Ash Content in Raw Coal Using Acids and Alkali |
| title_fullStr | Reduction of Ash Content in Raw Coal Using Acids and Alkali |
| title_full_unstemmed | Reduction of Ash Content in Raw Coal Using Acids and Alkali |
| title_short | Reduction of Ash Content in Raw Coal Using Acids and Alkali |
| title_sort | reduction of ash content in raw coal using acids and alkali |
| url | http://dx.doi.org/10.1155/2010/906192 |
| work_keys_str_mv | AT khshivaprasad reductionofashcontentinrawcoalusingacidsandalkali AT mmnagabhushana reductionofashcontentinrawcoalusingacidsandalkali AT cvenkataiah reductionofashcontentinrawcoalusingacidsandalkali |