Status : Verified
| Personal Name | Grafilo, Laumar Alan Dave R. |
|---|---|
| Resource Title | Process and equipment modelling and design of a coffee husks gasifier for drying operation |
| Date Issued | June 2020 |
| Abstract | The Philippines is blessed to have been producing the four species of coffee (Robusta, Excelsa, Arabica, and Liberica) with the total coffee production of 68,000 metric tons from 2014-2018. To produce a cup of coffee that we used to enjoy every morning, it involves numerous processing that requires a lot of work and energy. Moreso, coffee processing produces waste materials including coffee husks. Coffee husks are a type of waste biomass that can be a potential feedstock for waste to energy production, entirely fit for recovering the intended work and energy used from coffee processing. There are other competing uses of coffee husks like ethanol production, compost fertilizer and directly burning as fuel. However, gasifying this waste material has been found to be the most cost-effective use. This study was conducted to test the viability of the coffee husks to be the potential feedstock in a gasifier-dryer system. The projection of the total amount of waste produced is necessary for determining the input for the process modelling as well as the proximate and ultimate analysis tested and analyzed at the Department of Science and Technology – Industrial Technology Development Institute (DOST-ITDI) thru standard testing. In the tests, the proximate analysis gave to 12.30% moisture content, 64% volatile matter, 23.30% fixed carbon and 12.70% ash content. On the other hand, ultimate analysis gave 38.50% carbon, 5.89% hydrogen and 42.91% oxygen. No traces of nitrogen and sulfur were found. Aspen Plus, a cost-effective and time-saving method for modelling reactors in biomass gasification was used to produce a model and determine the producer gas. composition. To dry 2 tons of coffee fruits in a gasifier-dryer system, it requires 50 kg/hr of the biomass feedstock. By feeding 50 kg/hr of coffee husks and 0.578 kg/hr of air in the model, it produced simulation results of 925.85 ֯C gasification temperature in the reactor to gasify the coffee husks and air mixture to produc |
| Degree Course | MS Energy Engineering |
| Language | English |
| Keyword | waste to energy; gasifier-dryer system; proximate and ultimate analysis; aspen plus; producer gas |
| Material Type | Thesis/Dissertation |
Preliminary Pages
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Category : P - Author wishes to publish the work personally.
Access Permission : Limited Access