轴向分段原料气冷激式氨合成塔的稳态模拟

Steady-State Simulation of Ammonia Reactor of Longitudinal Multiple-Stage Quench Type with Feed Gas

本文以中、小型合成氨厂内部套管换热式合成塔内件技术改造为背景，试把内件改为轴 向四段原料气冷激式．用ＩＢＭ－ＰＣ计算机进行模拟计算研究．结果表明．利用现有生产厂合成塔耐 高压的外筒，改造其低压内件为冷激式的触媒筐，可以省去触媒层中的换热管和下部换热器，从 而增加触媒的有效装填空间，提高触媒装填率，对各种规模合成塔单塔生产能力都能获得较大幅 度的提高（可达１２０～１６０％）．文中所采用的数学模型、参数和计算程序，经用引进的３０万吨／年 的装置验证，各主要工艺参数的误差小于７％，吻合较好．

This paper has researched internal accessories of ammonia synthetic tower from in- ternal casing pipe transducer reform to longitudinal 4th-stage guench type reactor. Simulation Calculating by IBM-PC computer has derived that the productively of an ammo- nia reactor is increased 120%-160% for different productivity of levels. The modeling, parameter and calculating program has proved with install of 300,000 tons per year with guote technigue from abroad. Its errors is less than 7%.