K-2223 都市ゴミ固形燃料の燃焼および脱塩特性(S29-1 地域エネルギーシステムにおける小型発電技術の動向(1))(S29 地域エネルギーシステムにおける小型発電技術の動向)

概要

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Fundamentals on de-chlorination characteristics with Refuse Derived Fuels (RDF), which had been developed to utilize as source for thermal energy, were studied by using both the practical RDF and the simulated RDF. For the simulated RDF polyvinyl chloride (PVC) or NaCl was added as a chlorine source. In the experiment single pellet of RDF was burned in an electrically heated batch furnace. The de-chlorination efficiency was calculated by means of analysis of Cl in the residue after combustion. The efficiency obtained was compared with that obtained by chemical equilibrium calculation. As a result, HCl is almost emitted during the volatile matter combustion. The de-chlorination characteristics for PVC addition differ from that for NaCl addition. For the RDF adding the de-chlorination reaction depends on the furnace temperature, and the optimum temperature is about 923 K. The phenomena are caused by the following reasons. At low temperature the de-chlorination rate is slower than the evolution rate of HCl gas. At high temperature, on the other hand, CaCl_2, which is produced by the de-chlorination reaction, is decomposed during the char combustion. For the NaCl addition, Ca compound does not absorb Cl in NaCl. According to chemical equilibrium calculation, NaCl is evaporated as a form of NaCl and Na_2Cl_2 vapors. HCl is not produced either.
一般社団法人日本機械学会の論文
2001-08-22