用(yong)于氣(qi)固(gu)相(xiang)或(huo)液固(gu)相(xiang)非催(cui)化反(fan)(fan)應(ying)時(shi)，廣東(dong)固(gu)定(ding)(ding)床(chuang)，床(chuang)層(ceng)則(ze)填裝固(gu)體反(fan)(fan)應(ying)物。多(duo)通道(dao)(dao)固(gu)定(ding)(ding)床(chuang)反(fan)(fan)應(ying)器可(ke)歸屬于固(gu)定(ding)(ding)床(chuang)反(fan)(fan)應(ying)器，氣(qi)、液相(xiang)并流向(xiang)下通過床(chuang)層(ceng)，固(gu)定(ding)(ding)床(chuang)實驗(yan)裝置(zhi)(zhi)，呈(cheng)氣(qi)液固(gu)相(xiang)接觸(chu)。多(duo)通道(dao)(dao)固(gu)定(ding)(ding)床(chuang)反(fan)(fan)應(ying)器裝置(zhi)(zhi)的儀表(biao)如(ru)減壓(ya)閥、背壓(ya)閥、流量計以及管閥件均選用(yong)進口元件，反(fan)(fan)應(ying)固(gu)定(ding)(ding)床(chuang)，保(bao)證使(shi)用(yong)的穩(wen)定(ding)(ding)性(xing)、可(ke)靠性(xing)和安全性(xing)。多(duo)通道(dao)(dao)固(gu)定(ding)(ding)床(chuang)反(fan)(fan)應(ying)器的優點是：①返(fan)混小(xiao)(xiao)，高壓(ya)固(gu)定(ding)(ding)床(chuang)，流體同催(cui)化劑可(ke)進行有效接觸(chu)，當反(fan)(fan)應(ying)伴有串聯副反(fan)(fan)應(ying)時(shi)可(ke)得較高選擇(ze)性(xing)。②催(cui)化劑機(ji)械損耗小(xiao)(xiao)。

徑向(xiang)絕熱(re)(re)式(shi)固(gu)(gu)定床(chuang)反(fan)(fan)應器(qi)：流(liu)(liu)體(ti)(ti)沿徑向(xiang)流(liu)(liu)過(guo)床(chuang)層，可采(cai)用(yong)離心流(liu)(liu)動或向(xiang)心流(liu)(liu)動，床(chuang)層同外界無熱(re)(re)交(jiao)換。徑向(xiang)反(fan)(fan)應器(qi)與軸向(xiang)反(fan)(fan)應器(qi)相(xiang)比，流(liu)(liu)體(ti)(ti)流(liu)(liu)動的(de)距(ju)離較短(duan)，流(liu)(liu)道截面積較大，流(liu)(liu)體(ti)(ti)的(de)壓力降較小。固(gu)(gu)定床(chuang)反(fan)(fan)應器(qi)是(shi)用(yong)于(yu)實(shi)現(xian)氣固(gu)(gu)、液(ye)固(gu)(gu)反(fan)(fan)應的(de)連續化設(she)計而成，應用(yong)于(yu)加(jia)氫、合成氨等反(fan)(fan)應類(lei)別。裝填有(you)固(gu)(gu)體(ti)(ti)催化劑(ji)或固(gu)(gu)體(ti)(ti)反(fan)(fan)應物用(yong)以實(shi)現(xian)多(duo)相(xiang)反(fan)(fan)應過(guo)程的(de)一(yi)種反(fan)(fan)應器(qi)。固(gu)(gu)定床(chuang)反(fan)(fan)應裝置的(de)特點(dian)(dian)是(shi)在工作流(liu)(liu)程中(zhong)工藝個設(she)備(bei)結(jie)構上(shang)比普通的(de)移動床(chuang)和沸騰床(chuang)都(dou)要(yao)簡單的(de)多(duo)，但是(shi)他也(ye)有(you)缺點(dian)(dian)，缺點(dian)(dian)就是(shi)固(gu)(gu)定床(chuang)加(jia)氫裝置有(you)一(yi)定的(de)局限性。這點(dian)(dian)我們要(yao)記(ji)住。

固定床加氫(qing)裝(zhuang)置就是(shi)指工(gong)(gong)(gong)藝(yi)(yi)(yi)采用的(de)(de)是(shi)固定床加氫(qing)的(de)(de)反(fan)應(ying)對重油提煉的(de)(de)一種裝(zhuang)置，同事它具有(you)(you)技(ji)術成熟、工(gong)(gong)(gong)藝(yi)(yi)(yi)和(he)設(she)備結構簡單的(de)(de)特(te)點(dian)。固定床反(fan)應(ying)器(qi)的(de)(de)優點(dian)：氣體(ti)停留時間可以嚴格控(kong)制(zhi)，溫度(du)分布可以調節，因(yin)而有(you)(you)利(li)于提高化(hua)學反(fan)應(ying)的(de)(de)轉化(hua)率(lv)和(he)選擇性。多通道(dao)固定床反(fan)應(ying)器(qi)的(de)(de)工(gong)(gong)(gong)藝(yi)(yi)(yi)組(zu)件如反(fan)應(ying)器(qi)、冷凝(ning)器(qi)以及(ji)高低壓分離器(qi)根(gen)據(ju)不同的(de)(de)工(gong)(gong)(gong)藝(yi)(yi)(yi)要求，采用特(te)別的(de)(de)內表面處理工(gong)(gong)(gong)藝(yi)(yi)(yi)和(he)結構設(she)計，滿足不同催化(hua)劑和(he)工(gong)(gong)(gong)藝(yi)(yi)(yi)的(de)(de)實驗(yan)要求