E3S Web Conf.
Volume 42, 2018ASTECHNOVA 2016 International Energy Conference
|Number of page(s)||3|
|Published online||29 June 2018|
The Effect of Temperature Variation on Water Scrubber System to Optimize Biogas Purification
Department of Engineering Physics, Institut Teknologi Sepuluh Nopember, Surabaya,
Biogas is made from the anaerobic process, which methane (CH4) as a primary element with some other elements. The composition of biogas in the experiment still contains H2S gas pollutants by 41,76 ppm. The amount of H2S content can reduce CH4 composition, so it has a lot of efforts to reduce H2S in biogas. One of them used water scrubber system, but the water scrubber system always changed according to the temperature ambient. It can cause inconsistency biogas quality, which is the reduction of H2S always changed. Another study showed that the speed of the water flow of 5.5 to 11 liters / min and water temperature of 10-25 °C, can reduce the H2S content in biogas up to 4.5 - 8%, of the initial content by 37,8% to 43.6%. So that is needed the design of water cooling system on purifying biogas. While this research aims that the lower water temperature will increase the effectiveness of the reduction of H2S with water temperature 15-20 °C. From the experiments that have been carried out test results obtained when the water temperature 20 °C the content of H2S was 0.7 ppm when the water temperature 17°C H2S content was 0.6 ppm when the water temperature 15 ° C H2S was 0.5 ppm.
Key words: absorption / biogas / H2S / purification / water cooling system
© The Authors, published by EDP Sciences 2018
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