徑(jing)(jing)向(xiang)絕熱(re)(re)式(shi)固(gu)(gu)(gu)定(ding)床(chuang)(chuang)(chuang)反(fan)應(ying)器(qi)(qi)(qi)：流(liu)體(ti)沿徑(jing)(jing)向(xiang)流(liu)過床(chuang)(chuang)(chuang)層，可采(cai)用(yong)離(li)心流(liu)動(dong)或向(xiang)心流(liu)動(dong)，床(chuang)(chuang)(chuang)層同外(wai)(wai)界無熱(re)(re)交換(huan)(huan)。徑(jing)(jing)向(xiang)反(fan)應(ying)器(qi)(qi)(qi)與(yu)軸(zhou)向(xiang)反(fan)應(ying)器(qi)(qi)(qi)相比(bi)，流(liu)體(ti)流(liu)動(dong)的距離(li)較短，流(liu)道截面(mian)積較大，流(liu)體(ti)的壓力(li)降較小。多通(tong)道固(gu)(gu)(gu)定(ding)床(chuang)(chuang)(chuang)反(fan)應(ying)器(qi)(qi)(qi)的優(you)點(dian)是(shi)：結(jie)構(gou)簡單另有油(you)換(huan)(huan)熱(re)(re)或熔鹽換(huan)(huan)熱(re)(re)反(fan)應(ying)器(qi)(qi)(qi)、計算機聯機的數(shu)據采(cai)集和溫(wen)度控制軟件(jian)、在(zai)線(xian)取樣六通(tong)閥(fa)、多種(zhong)類型液體(ti)加(jia)料泵和氣相色譜(pu)儀，供用(yong)戶訂(ding)貨時另外(wai)(wai)選(xuan)擇配置(zhi)。此外(wai)(wai)，還可根據用(yong)戶要(yao)(yao)求(qiu)進行設(she)計、加(jia)工。固(gu)(gu)(gu)定(ding)床(chuang)(chuang)(chuang)反(fan)應(ying)裝(zhuang)置(zhi)的特點(dian)是(shi)在(zai)工作(zuo)流(liu)程中工藝(yi)個設(she)備(bei)結(jie)構(gou)上比(bi)普通(tong)的移動(dong)床(chuang)(chuang)(chuang)和沸(fei)騰床(chuang)(chuang)(chuang)都要(yao)(yao)簡單的多，但是(shi)他也有缺點(dian)，缺點(dian)就是(shi)固(gu)(gu)(gu)定(ding)床(chuang)(chuang)(chuang)加(jia)氫裝(zhuang)置(zhi)有一定(ding)的局限性。這點(dian)我們要(yao)(yao)記住。

固(gu)定(ding)床(chuang)反(fan)(fan)應(ying)(ying)器(qi)(qi)主要用于實現氣(qi)固(gu)相催(cui)化(hua)(hua)(hua)反(fan)(fan)應(ying)(ying)，固(gu)定(ding)床(chuang)裝置，如(ru)氨合成(cheng)塔、接(jie)(jie)觸(chu)(chu)氧化(hua)(hua)(hua)器(qi)(qi)、烴類蒸(zheng)汽轉化(hua)(hua)(hua)爐等，安徽固(gu)定(ding)床(chuang)，用于氣(qi)固(gu)相或液固(gu)相非催(cui)化(hua)(hua)(hua)反(fan)(fan)應(ying)(ying)時(shi)，反(fan)(fan)應(ying)(ying)固(gu)定(ding)床(chuang)，床(chuang)層則填裝固(gu)體(ti)反(fan)(fan)應(ying)(ying)物。多通(tong)道固(gu)定(ding)床(chuang)反(fan)(fan)應(ying)(ying)器(qi)(qi)的優點(dian)是：①返混(hun)小(xiao)(xiao)，流體(ti)同(tong)催(cui)化(hua)(hua)(hua)劑(ji)可(ke)進行(xing)有效接(jie)(jie)觸(chu)(chu)，當反(fan)(fan)應(ying)(ying)伴有串聯副反(fan)(fan)應(ying)(ying)時(shi)可(ke)得較高選擇(ze)性。②催(cui)化(hua)(hua)(hua)劑(ji)機械(xie)損耗小(xiao)(xiao)。固(gu)定(ding)床(chuang)反(fan)(fan)應(ying)(ying)器(qi)(qi)的優點(dian)：返混(hun)小(xiao)(xiao)，流體(ti)同(tong)催(cui)化(hua)(hua)(hua)劑(ji)可(ke)進行(xing)有效接(jie)(jie)觸(chu)(chu)，固(gu)定(ding)床(chuang)反(fan)(fan)應(ying)(ying)裝置器(qi)(qi)，當反(fan)(fan)應(ying)(ying)伴有串聯副反(fan)(fan)應(ying)(ying)時(shi)可(ke)得較高選擇(ze)性。

多通道固(gu)定(ding)床反(fan)(fan)應(ying)(ying)器(qi)(qi)是一個自動化(hua)(hua)系統(tong)，用于高(gao)溫(wen)高(gao)壓(ya)(ya)或(huo)者高(gao)溫(wen)常(chang)壓(ya)(ya)下進行的(de)(de)催(cui)化(hua)(hua)劑的(de)(de)評價。裝置配備的(de)(de)高(gao)壓(ya)(ya)/常(chang)壓(ya)(ya)供氣系統(tong)、高(gao)壓(ya)(ya)/常(chang)壓(ya)(ya)供液系統(tong)的(de)(de)管線路數可(ke)以按照不同要求來配置。對于多變量的(de)(de)固(gu)定(ding)床催(cui)化(hua)(hua)反(fan)(fan)應(ying)(ying)過(guo)程，也可(ke)以用經典的(de)(de)分析方法(fa)設計(ji)控制(zhi)系統(tong)，比如(ru)(ru)頻域分析方法(fa)、根(gen)軌跡分析方法(fa)等，可(ke)以得(de)到良好的(de)(de)調(diao)節質(zhi)量。多通道固(gu)定(ding)床反(fan)(fan)應(ying)(ying)器(qi)(qi)的(de)(de)工(gong)(gong)藝(yi)組件(jian)如(ru)(ru)反(fan)(fan)應(ying)(ying)器(qi)(qi)、冷凝器(qi)(qi)以及高(gao)低壓(ya)(ya)分離器(qi)(qi)根(gen)據不同的(de)(de)工(gong)(gong)藝(yi)要求，采用特別的(de)(de)內表面(mian)處理工(gong)(gong)藝(yi)和結構(gou)設計(ji)，滿足(zu)不同催(cui)化(hua)(hua)劑和工(gong)(gong)藝(yi)的(de)(de)實驗要求