Development of rice straw activated carbon and its utilizations

dingxinda
01.03.2021 @ 04.17

[url=https://www.activated-carbon… charcoal pellets canada[/url]Unrecycled wastes such as rice straw must be responsibly disposed to prevent environmental issues and it would be even better if it makes a profit. Pyrolysis as a thermal conversion process is one option to convert wastes into biochar, which can be used as a catalyst support for bio-oil catalytic upgrading, electrochemical material, and pollutant adsorbent after biochar activation. In the study, KOH chemical activation was applied to have high surface areas (1330 m2/g). For the first application, the nickel impregnated on the activated carbon was used to upgrade the microalgae distilled bio-oil fraction. The upgraded bio-oil was deoxygenated by 42% and desulfurized by 86%. The H/C and O/C ratios of upgraded bio-oil showed close ratios of the petro-based fuels and HHV was obtained as about 42 MJ/kg. Most olefin and nitrile groups were cracked or converted into smaller carbon chains whereas the amount of paraffin and aromatic groups increased. Also, the activated carbon[url=https://www.coconutactivated… carbon price south africa[/url]was evaluated as an electrochemical material, a supercapacitor, which showed both the properties of EDLC (electrical double layer capacitor) and pseudocapacitance. The highest specific capacitance was obtained at 93 F/g, which showed a modest specific capacitance. Last, the activated carbon was used as an adsorbent material to remove pharmaceutical pollutions and almost 95% of them were removed in a 24 h contact time.