1-2-2 直接通電小型ガス化反応装置を用いた高温・高圧下での石炭のガス化速度の評価(1-2 ガス化1,Session1 石炭・重質油等,研究発表)

概要

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A mini directly-heated reactor (mini-DHR) was constructed to measure the gasification rate handily under high CO_2 pressure of 〜2 MPa in the presence of other gases, such as CO and H_2, at T= 〜1200℃. The mini-DHR was made of U-shaped SUS or Pt tubing of 3 mm I.D. The reactor itself was used as a heating element. An electric current of 75-150 A and a few volts were introduced to the reactor to heat up the reactor up to 900 to 1200℃. About 1 mg of char was placed in a platinum mesh basket of 1.0 mm I.D. and 10 mm high. The basket with the char sample was placed just above a thermocouple in the reactor. The conversion of char, X, was estimated by weighing the remaining char The X vs. t relationships obtained under various conditions were analyzed to formulate a gasification rate equation in the presence of both CO_2 and CO for a char prepared from an Australian brown coal.
2011-08-09