6TH International Congress on Technology - Engineering - Kuala Lumpur3 - Malaysia (2018-07-19)

Characterization Of Product From Pyrolysis Sawdust Briquette Based On Variation Of Heating Rate And Gas Suction Rate Using Rocket Pyrolizer And Plastic Oil Burner

Sawdust waste is currently widely used as raw material of biomass charcoal briquettes. Utilization of Sawdust into Charcoal Briquettes supports the re realization of the concept of Waste to Energy and Fulfillment of new renewable energy based biomass. Moreover, the current global trend encourages the use of renewable energy. Charcoal briquette sawdust has a strategic position as a source of renewable energy and reduce waste pollution so that it has a high demand in the global market. Indonesia has abundant biomass potency so now start to grow sawdust briquette factory with production capacity 10-20 Ton/day. However, in the production process of Charcoal Sawdust Briquette there are still some problems that is 1) There is always a reject product because it is damaged during the process that becomes waste; 2) shrinkage of mass and product volume of the results of the ban; 3) Duration of carbonization about 3 Days; and 4) Gas emissions during the cultivation process that often lead to social conflict. It has negative and adverse economic, environmental and social impacts that can threaten the sustainability of the production of charcoal briquettes. It is during this friction that cracks often cause the product to be rejected especially at the bottom of the oven where heat and heating rate are highest. That’s why research is needed which is devoted to pyrolysis process with raw material of wood powder biomass briquette. The study focused on the effect of heating rate to know the optimum rate of heating and also the rate of suction of pyrolysis gas which can reduce the air emission become liquid smoke / bio-oil using Rocket Pyrolizer with Plastic oil Burner. The results showed 500 grams of heating pyrolysis of sawdust briquettes with heating rate of 30 ? C/min, 45 ? C/min, 60 ? C / min and gas suction rate 5L/min with peak temperature of 900 ? C for 1.5 hour resulting in a Charcoal Briquette of 154.48 gram - 170 , 31 gram or about 30,79% - 34,02% wt and liquid product of liquid smoke between 229,55 gram - 340,51 gram or about 45,85% - 67,84% wt. The physical characteristics of briquettes generally cracks at a temperature of 900?C at a heating rate of 30?C / min, 45?C / min and 60?C / min. Physical characteristics of liquid products have a dark brownish color and tend to thick. Based on Proximate test results showed the highest quality charcoal on sample D with the lowest heating rate and gas suction rate 5L/min. Sample D has the highest heating value of 7205.23 cal/g. The highest fixed carbon is 81.58% and the lowest volatile matter is 11.01%. Based on the research results, the slower the heating rate has the tendency of calorific value, fixed carbon, ash content and higher moisture content while the volatile matter is lower. Provision of gas suction rate gives the influence of the tendency of higher heating value and fixed carbon while the volatile matter tend to be lower.
M. Noviansyah Aridito, Wira Widyawidura, Syamsul Maarif, Wardoyo, Muhammad Kismurtono