Effect of loading and H₂O wetness of hydrogel biochar derived from EFB for H₂S gas sorption

Hydrogel biochar is the non-toxic, biocompatibility and both gas and water absorbent polymeric materials. The H₂S gas is very hazardous gas as it is produced from natural and human-made process. Due to its higher density than air, it become more dangerous to the atmosphere. This research aims to determine the characterization of hydrogel biochar derived from empty fruit bunch, HBC-EFB and to determine the ability of HBC-EFB in sorption of H₂S gas. In order to achieved these, the empty fruit bunch hydrogel biochar (HBC-EFB) was prepared. The EFB biochar from pyrolysis process were mixed with the solutions of acrylamide (AAm) as monomer, N-N’-methylenebisacrylamide (MBA) as crosslinker and ammonium persulfate as initiator. The HBC-EFB was characterized by using Thermogravimetric Analyzer (TGA), Elemental Analyzer (EA), Brunaeur Emmet Teller (BET) and Scanning Electron Microscopy (SEM). The H₂S sorption of HBC-EFB was conducted by using Multi Layered Sorption Bed. The experimental data showed that the sorption rate of HBC-EFB was efficient when the bed was full up to three bed with under wet condition.