コールタール重質成分を用いた廃プラスチックの水素化分解処理における塩化鉄の影響

概要

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When waste plastics that include chlorine-containing plastics, such as polyvinyl chloride (PVC), are used for a blast furnace, a chlorine-containing gas generated during pyrolysis may corrode the equipment. Then, the melt process mixed with PVC, polyethylene, polypropylene, polystyrene, coal tar (HOB) and Fe_2O_3 as the antichlor agents were examined to stabilize chlorine that was detached from PVC to form iron chloride. After the melt process, these were hydrocracked to produce oil. The result that chlorine was stabilized by iron oxide and formed iron chloride on the melt process was confirmed and reported. Subsequently, the influence of iron chloride on the hydorcracking process was examined. The following results were obtained; (1) FeCl_2 and FeCl_3 promote polymerization of the product, and chlorine, which is generated from FeCl_3 by pyrolysis, is distributed in the product. (2) When Fe_2O_3 is added on the melt process excessively, the dispersion of chlorine can be controlled by Fe_2O_3 to fix chlorine generated from FeCl_3. (3) However, it is necessary to remove the iron chloride before the hydrocracking process because they promote polymerization of the products.
一般社団法人日本エネルギー学会の論文
2006-11-20