Gasification of Blended Animal Manures and Use of Chars for Hydrogen Sulfide Removal

Blended swine solids, chicken litter, and hardwood are renewable and expensive sources to produce combined heat and power (CHP), fuels and related chemicals. The therrmochemical pathway to gasify manure has the added advantage of destroying harmful pathogens and pharmaceutically active compounds during the process. We are focusing on a skid-mounted, integrated down-draft gasifier for conversion of these feedstocks to synthesis gas (syngas) at 850^oC. Gasifier temperature profiles along with synthesis gas compositions were measured. Proximate and ultimate properties of the chars were analyzed. The H₂S sorption capacities of these chars were determined using laboratory-scale continuous-flow sorption column systems. These results will be presented at the meeting.