近年来,美、日等国正在研究一种利用排气余热,将甲醇催化分解成H_2和CO后作为燃料的新型汽车发动机。此法提高了发动机热效率,降低了尾气中有害物质的排放量。为了促进甲醇分解,需要催化剂。我们研制了一种能选择性地将甲醇分解成H_2和CO的Ni-K/Al_2O_3系催化剂。本文报道用封闭循环反应器研究Ni-K/Al_2O_3催化剂上甲醇分解动力学,定 In recent years, the United States, Japan and other countries are studying a new type of car engine using exhaust heat, the catalytic decomposition of methanol into H_2 and CO as a fuel after the car. This method increases the thermal efficiency of the engine and reduces the emission of harmful substances in the exhaust gas. In order to promote methanol decomposition, a catalyst is required. We developed a Ni-K / Al 2 O 3 catalyst that can selectively decompose methanol into H 2 and CO. In this paper, we study the kinetics of methanol decomposition on a Ni-K / Al 2 O 3 catalyst using a closed loop reactor.