Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product
Effect of KOH, reaction temperature and time, and introduced carbonization step on the amount and composition of syngas as well as porous properties of the carbon products for CO2 gasification of coconut shell at low temperatures (300–700°C) was investigated. Results showed that the presence of pota...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/481615 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558449438752768 |
|---|---|
| author | Natthaya Punsuwan Chaiyot Tangsathitkulchai Takayuki Takarada |
| author_facet | Natthaya Punsuwan Chaiyot Tangsathitkulchai Takayuki Takarada |
| author_sort | Natthaya Punsuwan |
| collection | DOAJ |
| description | Effect of KOH, reaction temperature and time, and introduced carbonization step on the amount and composition of syngas as well as porous properties of the carbon products for CO2 gasification of coconut shell at low temperatures (300–700°C) was investigated. Results showed that the presence of potassium hydroxide and gasification temperature had a significant effect on the amount and composition of syngas product and facilitated the rate of hydrogen and carbon monoxide formation. It was also found that carbonization step could promote the generation of hydrogen gas as well as increasing the gas heating value per kg of gas. Furthermore, the porosity development of carbon product was found to be influenced by the chemical ratio and gasification temperature. The optimal conditions for achieving high hydrogen composition and specific surface area were to gasify coconut shell under CO2 at 600°C for 60 min with carbonization step and with chemical weight ratio of 3.0. This condition gave the hydrogen composition as high as 29.70 %weight of produced syngas with heating value of 41.4 MJ/kg of gas and specific surface area of 2650 m2/g of the carbon product. |
| format | Article |
| id | doaj-art-5d4970632be64fd0a75cfcacf4bb7b48 |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-5d4970632be64fd0a75cfcacf4bb7b482025-02-03T01:32:22ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782015-01-01201510.1155/2015/481615481615Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon ProductNatthaya Punsuwan0Chaiyot Tangsathitkulchai1Takayuki Takarada2Department of Chemical Engineering, Faculty of Engineering, Ubon Ratchathani University, Ubon Ratchathani 34190, ThailandSchool of Chemical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, ThailandDepartment of Chemical and Environmental Engineering, Gunma University, Kiryu 376-8515, JapanEffect of KOH, reaction temperature and time, and introduced carbonization step on the amount and composition of syngas as well as porous properties of the carbon products for CO2 gasification of coconut shell at low temperatures (300–700°C) was investigated. Results showed that the presence of potassium hydroxide and gasification temperature had a significant effect on the amount and composition of syngas product and facilitated the rate of hydrogen and carbon monoxide formation. It was also found that carbonization step could promote the generation of hydrogen gas as well as increasing the gas heating value per kg of gas. Furthermore, the porosity development of carbon product was found to be influenced by the chemical ratio and gasification temperature. The optimal conditions for achieving high hydrogen composition and specific surface area were to gasify coconut shell under CO2 at 600°C for 60 min with carbonization step and with chemical weight ratio of 3.0. This condition gave the hydrogen composition as high as 29.70 %weight of produced syngas with heating value of 41.4 MJ/kg of gas and specific surface area of 2650 m2/g of the carbon product.http://dx.doi.org/10.1155/2015/481615 |
| spellingShingle | Natthaya Punsuwan Chaiyot Tangsathitkulchai Takayuki Takarada Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product International Journal of Chemical Engineering |
| title | Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product |
| title_full | Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product |
| title_fullStr | Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product |
| title_full_unstemmed | Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product |
| title_short | Low Temperature Gasification of Coconut Shell with CO2 and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product |
| title_sort | low temperature gasification of coconut shell with co2 and koh effects of temperature chemical loading and introduced carbonization step on the properties of syngas and porous carbon product |
| url | http://dx.doi.org/10.1155/2015/481615 |
| work_keys_str_mv | AT natthayapunsuwan lowtemperaturegasificationofcoconutshellwithco2andkoheffectsoftemperaturechemicalloadingandintroducedcarbonizationsteponthepropertiesofsyngasandporouscarbonproduct AT chaiyottangsathitkulchai lowtemperaturegasificationofcoconutshellwithco2andkoheffectsoftemperaturechemicalloadingandintroducedcarbonizationsteponthepropertiesofsyngasandporouscarbonproduct AT takayukitakarada lowtemperaturegasificationofcoconutshellwithco2andkoheffectsoftemperaturechemicalloadingandintroducedcarbonizationsteponthepropertiesofsyngasandporouscarbonproduct |