|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|6474199||1362469||2017||6 صفحه PDF||سفارش دهید||دانلود کنید|
This study reports the briquetting and carbonization processes of naturally grown algae biomass collected from regional lakes. After drying them in air and chopping them into small pieces (â¼2.5Â ÃÂ 2.5Â cm), three different briquetting pressures (e.g., 2, 3, and 5Â tons/cm2) were applied to form algae briquettes with 3-5% moisture content. Three major investigations were performed on the prepared samples. The first test was to investigate the briquettes' handleability, in which the algae briquettes were dropped 100 times from a height of 1.524Â m to resemble a handling mechanism. The second test was conducted on the samples to resolve the residual strength of the briquettes before and after the carbonization process at 800Â Â°C. Ignition points of the algae briquettes were reviewed in the third analysis. Test results showed that briquettes under 2, 3, and 5Â tons/cm2 of pressure had density values of 1303, 1423, and 1553Â kg/m3, respectively. Drop tests demonstrated that the weight contractions of the briquettes were reduced from 10.2% to 2.1%, when the pressure was intensified from 2 to 5Â tons. Ignition temperatures for the non-carbonized briquettes under 2, 3, and 5Â tons/cm2 were 492, 510, and 520Â Â°C, respectively; however, after carbonization, these temperatures were reduced to 474, 487, and 492Â Â°C, respectively. Compression strength tests for the non-carbonized briquettes under 2, 3, and 5Â tons/cm2 resulted in 22.1, 29.2, and 33.5Â MPa, respectively. These test outcomes can be suitable for future guidance of an algae-based biomass and fuel system for reducing environmental impacts.
Journal: Fuel - Volume 208, 15 November 2017, Pages 612-617