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Project of developing and maintaining mobile rice straw recycling device to producing Residual Deriv

Absrtact	This project aims to develop a mobile rice straw recycling device to producing Residual Derivative Fuels（RDF-5）. The device can be settled in a 20ft long cargo container and delivered by trailer. This device exhibited in Yunlin Agriculture EXPO from 13th of December in 2013 to 6th of March in 2014. During the exhibition, mobile rice straw recycling device had been demonstrated to produce biomass Briquette. The recycling result displays that 210kg of rice straw can be treated each hour which complied with the requisition of contract (100kg/hr). Those biomass Briquette also can be applied to food gasification furnace and farming layer. Most of visitors in Yunlin Agriculture EXPO praised the achievement of rice straw recycling system. In other words, this project promoted agriculture waste recycling and biomass transforming technology successfully. In addition, co-firing experimentation uses three different proportions of Residual Derivative Fuels（RDF-5） mixed with Palm Kernel Shell（PKS）in biofuel steam boiler. The efficiency of steam boiler decreased when the use of rice straw biomass fuel increased from 2% to 10%. Compared with a purely palm shell biofuel steam boiler, mixture fuel steam boiler has a lower efficiency which the decline rate is between 0.6% and 3%. However, adjusting operation condition and solid fuel feeding can solve this problem. During the experimentation, the programme took air samples after the process of air pollution control and did three pollution analyses which include stack air pollutant、button ash elemental analysis and heavy metal. The result indicates that the concentration of Dioxin, SOx, NOx, HCl and CO all met stationary pollution source air pollution emission standard. The concentration of heavy metal in the button ash sample conforms to Toxicity Characteristic Leaching Procedure (TCLP) standard. Moreover, concentration of Dioxin was under hazardous industrial waste classification standard. Also the concentration value of S, N and Cl were under method detection limit. As a consequence, using rice straw biomass pellet to biofuel steam boiler is practical and also can be applied in industrial biofuel steam boiler. This system will assist to prevent open burning among countryside and solve agriculture waste problem effectively.
Keyword	rice straw , biomass briquette, co-firing

Absrtact

This project aims to develop a mobile rice straw recycling device to producing Residual Derivative Fuels（RDF-5）. The device can be settled in a 20ft long cargo container and delivered by trailer. This device exhibited in Yunlin Agriculture EXPO from 13th of December in 2013 to 6th of March in 2014. During the exhibition, mobile rice straw recycling device had been demonstrated to produce biomass Briquette. The recycling result displays that 210kg of rice straw can be treated each hour which complied with the requisition of contract (100kg/hr). Those biomass Briquette also can be applied to food gasification furnace and farming layer. Most of visitors in Yunlin Agriculture EXPO praised the achievement of rice straw recycling system. In other words, this project promoted agriculture waste recycling and biomass transforming technology successfully. In addition, co-firing experimentation uses three different proportions of Residual Derivative Fuels（RDF-5） mixed with Palm Kernel Shell（PKS）in biofuel steam boiler. The efficiency of steam boiler decreased when the use of rice straw biomass fuel increased from 2% to 10%. Compared with a purely palm shell biofuel steam boiler, mixture fuel steam boiler has a lower efficiency which the decline rate is between 0.6% and 3%. However, adjusting operation condition and solid fuel feeding can solve this problem. During the experimentation, the programme took air samples after the process of air pollution control and did three pollution analyses which include stack air pollutant、button ash elemental analysis and heavy metal. The result indicates that the concentration of Dioxin, SOx, NOx, HCl and CO all met stationary pollution source air pollution emission standard. The concentration of heavy metal in the button ash sample conforms to Toxicity Characteristic Leaching Procedure (TCLP) standard. Moreover, concentration of Dioxin was under hazardous industrial waste classification standard. Also the concentration value of S, N and Cl were under method detection limit. As a consequence, using rice straw biomass pellet to biofuel steam boiler is practical and also can be applied in industrial biofuel steam boiler. This system will assist to prevent open burning among countryside and solve agriculture waste problem effectively.

Keyword

rice straw , biomass briquette, co-firing