小型固(gu)(gu)定(ding)床(chuang)(chuang)反(fan)(fan)應(ying)(ying)(ying)器(qi)大都是圓柱(zhu)形狀，溫度沿著軸向(xiang)和徑向(xiang)具有一(yi)(yi)定(ding)的(de)分布形式。為了(le)不致超(chao)溫而破(po)壞催化(hua)劑，合(he)肥催化(hua)劑評價裝置，先要控(kong)制反(fan)(fan)應(ying)(ying)(ying)床(chuang)(chuang)層中的(de)高溫度。固(gu)(gu)定(ding)床(chuang)(chuang)反(fan)(fan)應(ying)(ying)(ying)器(qi)的(de)另一(yi)(yi)個(ge)叫法是填(tian)充床(chuang)(chuang)反(fan)(fan)應(ying)(ying)(ying)器(qi)，就是裝填(tian)有固(gu)(gu)體催化(hua)劑或(huo)固(gu)(gu)體反(fan)(fan)應(ying)(ying)(ying)物用(yong)(yong)以(yi)實現(xian)多(duo)相反(fan)(fan)應(ying)(ying)(ying)過程的(de)一(yi)(yi)種反(fan)(fan)應(ying)(ying)(ying)器(qi)。多(duo)通(tong)道(dao)固(gu)(gu)定(ding)床(chuang)(chuang)反(fan)(fan)應(ying)(ying)(ying)器(qi)是一(yi)(yi)個(ge)自(zi)動化(hua)系(xi)(xi)統(tong)(tong)，用(yong)(yong)于高溫高壓(ya)(ya)或(huo)者(zhe)高溫常(chang)壓(ya)(ya)下進行的(de)催化(hua)劑的(de)評價。裝置配(pei)備的(de)高壓(ya)(ya)/常(chang)壓(ya)(ya)供(gong)氣系(xi)(xi)統(tong)(tong)、高壓(ya)(ya)/常(chang)壓(ya)(ya)供(gong)液系(xi)(xi)統(tong)(tong)的(de)管線(xian)路數(shu)可以(yi)按照(zhao)不同要求來配(pei)置。

對于(yu)多(duo)變量(liang)的固(gu)(gu)(gu)定(ding)(ding)床催化反(fan)(fan)應(ying)(ying)(ying)過程，也可以用(yong)經(jing)典的分析方法設計控制系統，比(bi)如頻(pin)域分析方法、根(gen)軌跡分析方法等，催化劑評(ping)價裝(zhuang)置廠家，可以得(de)到良好的調節質量(liang)。多(duo)通道固(gu)(gu)(gu)定(ding)(ding)床反(fan)(fan)應(ying)(ying)(ying)器裝(zhuang)置的儀表(biao)如減壓(ya)(ya)閥、背壓(ya)(ya)閥、流量(liang)計以及(ji)管(guan)閥件均(jun)選用(yong)進口元(yuan)件，保證使用(yong)的穩定(ding)(ding)性(xing)、可靠(kao)性(xing)和(he)安(an)全(quan)性(xing)。固(gu)(gu)(gu)定(ding)(ding)床反(fan)(fan)應(ying)(ying)(ying)器是用(yong)于(yu)實現氣固(gu)(gu)(gu)、液固(gu)(gu)(gu)反(fan)(fan)應(ying)(ying)(ying)的連續化設計而成，應(ying)(ying)(ying)用(yong)于(yu)加氫、合成氨等反(fan)(fan)應(ying)(ying)(ying)類別。裝(zhuang)填有固(gu)(gu)(gu)體催化劑或(huo)固(gu)(gu)(gu)體反(fan)(fan)應(ying)(ying)(ying)物用(yong)以實現多(duo)相(xiang)反(fan)(fan)應(ying)(ying)(ying)過程的一種(zhong)反(fan)(fan)應(ying)(ying)(ying)器。

列管(guan)式固定(ding)(ding)床(chuang)(chuang)反(fan)(fan)應(ying)器：管(guan)內或(huo)(huo)管(guan)間置催(cui)(cui)化(hua)劑、載熱(re)體(ti)流(liu)經管(guan)間或(huo)(huo)管(guan)內進行加(jia)熱(re)或(huo)(huo)冷(leng)卻，管(guan)徑通(tong)常在25～50mm之間，管(guan)數可多(duo)達上(shang)萬根，催(cui)(cui)化(hua)劑評(ping)價(jia)裝置價(jia)錢，適用于反(fan)(fan)應(ying)熱(re)效應(ying)較大的(de)反(fan)(fan)應(ying)。固定(ding)(ding)床(chuang)(chuang)反(fan)(fan)應(ying)器的(de)另一(yi)個(ge)叫(jiao)法是填(tian)充(chong)床(chuang)(chuang)反(fan)(fan)應(ying)器，高壓(ya)催(cui)(cui)化(hua)劑評(ping)價(jia)裝置，就是裝填(tian)有固體(ti)催(cui)(cui)化(hua)劑或(huo)(huo)固體(ti)反(fan)(fan)應(ying)物用以實(shi)現(xian)多(duo)相反(fan)(fan)應(ying)過程的(de)一(yi)種反(fan)(fan)應(ying)器。固定(ding)(ding)床(chuang)(chuang)反(fan)(fan)應(ying)裝置的(de)特點是在工(gong)(gong)作流(liu)程中工(gong)(gong)藝(yi)個(ge)設(she)備結(jie)構上(shang)比普通(tong)的(de)移動床(chuang)(chuang)和沸騰床(chuang)(chuang)都要(yao)(yao)簡單的(de)多(duo)，但(dan)是他也有缺(que)點，缺(que)點就是固定(ding)(ding)床(chuang)(chuang)加(jia)氫裝置有一(yi)定(ding)(ding)的(de)局(ju)限性。這點我們(men)要(yao)(yao)記住。