催化劑載體的活性炭的應用
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催(cui)(cui)化劑(ji)(ji)(ji)特性(xing)(xing)活(huo)性(xing)(xing)炭(tan)(tan)(tan)具(ju)(ju)有(you)(you)(you)(you)微(wei)晶(jing)結構,微(wei)晶(jing)排列完全不(bu)規則,晶(jing)體(ti)中有(you)(you)(you)(you)微(wei)孔(kong)(kong)(kong)(半(ban)(ban)徑(jing)小于(yu)20〔埃(ai)〕=10-10米)、過渡孔(kong)(kong)(kong)(半(ban)(ban)徑(jing)20~1000)、大(da)孔(kong)(kong)(kong)(半(ban)(ban)徑(jing)1000~100000),使它具(ju)(ju)有(you)(you)(you)(you)很(hen)大(da)的(de)內表面,比(bi)表面積(ji)為(wei)500~1700米2/克。這決定(ding)(ding)了(le)活(huo)性(xing)(xing)炭(tan)(tan)(tan)具(ju)(ju)有(you)(you)(you)(you)良好的(de)吸(xi)附性(xing)(xing),可以(yi)吸(xi)附廢水和(he)廢氣中的(de)金屬離子、有(you)(you)(you)(you)害(hai)氣體(ti)、有(you)(you)(you)(you)機污染物、色素等。工(gong)業上應(ying)(ying)用(yong)(yong)活(huo)性(xing)(xing)炭(tan)(tan)(tan)還(huan)要求機械強(qiang)(qiang)度大(da)、耐磨性(xing)(xing)能好,它的(de)結構力求穩定(ding)(ding),吸(xi)附所需能量(liang)小,以(yi)有(you)(you)(you)(you)利于(yu)再生。活(huo)性(xing)(xing)炭(tan)(tan)(tan)用(yong)(yong)于(yu)油脂、飲料、食品、飲用(yong)(yong)水的(de)脫(tuo)色、脫(tuo)味(wei),氣體(ti)分離、溶(rong)劑(ji)(ji)(ji)回收和(he)空(kong)氣調節,用(yong)(yong)作(zuo)催(cui)(cui)化劑(ji)(ji)(ji)載(zai)體(ti)和(he)防毒(du)面具(ju)(ju)的(de)吸(xi)附劑(ji)(ji)(ji)。新(xin)型催(cui)(cui)化劑(ji)(ji)(ji)活(huo)性(xing)(xing)炭(tan)(tan)(tan)孔(kong)(kong)(kong)隙(xi)發達,比(bi)表面積(ji)大(da),尤以(yi)微(wei)中孔(kong)(kong)(kong)容積(ji)大(da)而(er)獨(du)具(ju)(ju)優點(dian)。椰(ye)(ye)殼活(huo)性(xing)(xing)炭(tan)(tan)(tan)催(cui)(cui)化劑(ji)(ji)(ji),是在(zai)椰(ye)(ye)殼活(huo)性(xing)(xing)炭(tan)(tan)(tan)的(de)碘質(zhi)是900以(yi)上的(de)基礎上,而(er)改(gai)性(xing)(xing)催(cui)(cui)化活(huo)性(xing)(xing)炭(tan)(tan)(tan)的(de)碘值則達到1300以(yi)上,催(cui)(cui)化劑(ji)(ji)(ji)是一種(zhong)很(hen)細(xi)小的(de)炭(tan)(tan)(tan)粒(li)有(you)(you)(you)(you)很(hen)大(da)的(de)表面積(ji),而(er)且炭(tan)(tan)(tan)粒(li)中還(huan)有(you)(you)(you)(you)更(geng)細(xi)小的(de)孔(kong)(kong)(kong)——毛(mao)(mao)細(xi)管。這種(zhong)毛(mao)(mao)細(xi)管具(ju)(ju)有(you)(you)(you)(you)很(hen)強(qiang)(qiang)的(de)吸(xi)附能力,由于(yu)炭(tan)(tan)(tan)粒(li)的(de)表面積(ji)很(hen)大(da),所以(yi)能與氣體(ti)(雜質(zhi))充分接(jie)觸(chu)。當這些氣體(ti)(雜質(zhi))碰到毛(mao)(mao)細(xi)管被吸(xi)附,起凈化作(zuo)用(yong)(yong)。活(huo)性(xing)(xing)炭(tan)(tan)(tan)催(cui)(cui)化劑(ji)(ji)(ji)廣泛應(ying)(ying)用(yong)(yong)于(yu)高純度氣體(ti)、液體(ti)、石化行(xing)業中作(zuo)為(wei)催(cui)(cui)化劑(ji)(ji)(ji)載(zai)體(ti)。也可以(yi)用(yong)(yong)于(yu)石化行(xing)業脫(tuo)硫、脫(tuo)臭等應(ying)(ying)用(yong)(yong)。 本文由催化劑載體,催化劑設備bjdlsdjx.com收集整理。 |
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