| 초록 |
Process design for industrial scale pyrolysis of Saccharina japonica is assessed for a scale of 380,000 tons/year of dry algae. The necessary steps for autonomous biofuel production include (1) Pretreatment, (2) Pyrolysis, (3) Heat and power generation, (4) Phase separation, (5) Upgrading, and (6) Hydrogen generation. In the technoeconomical assessment, it was found that hydrogen generation step makes up for almost 33% of the capital cost investment. In this study 2 process design alternatives will be compared with the original design including: purchasing the hydrogen from the market with and without recycling using pressure swing adsorption (PSA). The initial results indicate that the process without hydrogen production but with PSA is the most economically feasible between compared process designs. |
