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婁底活性炭纖維再生系統
婁底活性炭纖維再生系統

婁底活性炭纖維再生系統

  • 所屬分類:婁(lou)底有機(ji)廢氣(qi)系統
  • 發布日期:2019-05-07
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活(huo)(huo)性(xing)(xing)炭,是(shi)(shi)黑色(se)粉(fen)末狀(zhuang)或塊(kuai)狀(zhuang)、顆粒狀(zhuang)、蜂窩狀(zhuang)的無(wu)定形(xing)碳,也有(you)排列規整(zheng)的晶(jing)體碳。活(huo)(huo)性(xing)(xing)炭中(zhong)(zhong)(zhong)(zhong)除碳元素外,還包含(han)兩類摻和物(wu):一類是(shi)(shi)化學結合的元素,主(zhu)要是(shi)(shi)氧和氫,這些(xie)元素是(shi)(shi)由(you)于未(wei)完(wan)全炭化而(er)殘留在(zai)(zai)炭中(zhong)(zhong)(zhong)(zhong),或者在(zai)(zai)活(huo)(huo)化過程中(zhong)(zhong)(zhong)(zhong),外來(lai)的非碳元素與(yu)活(huo)(huo)性(xing)(xing)炭表面化學結合;另(ling)一類摻和物(wu)是(shi)(shi)灰(hui)分,它是(shi)(shi)活(huo)(huo)性(xing)(xing)炭的無(wu)機部分,灰(hui)分在(zai)(zai)活(huo)(huo)性(xing)(xing)碳中(zhong)(zhong)(zhong)(zhong)易造成二次污染(ran)。活(huo)(huo)性(xing)(xing)炭由(you)于具(ju)有(you)較(jiao)強(qiang)的吸(xi)附(fu)性(xing)(xing),廣(guang)泛(fan)應用于生(sheng)產、生(sheng)活(huo)(huo)中(zhong)(zhong)(zhong)(zhong)。

活(huo)性(xing)(xing)炭(tan)材料(liao)是經(jing)過加工(gong)處(chu)理所(suo)得的(de)(de)(de)(de)無定形碳,具(ju)有很大的(de)(de)(de)(de)比表面(mian)(mian)(mian)積(ji),對氣(qi)體(ti)、溶液中的(de)(de)(de)(de)無機或(huo)有機物(wu)質(zhi)(zhi)及膠體(ti)顆粒等(deng)都有良(liang)好的(de)(de)(de)(de)吸附能(neng)力。活(huo)性(xing)(xing)炭(tan)材料(liao)主(zhu)要包括活(huo)性(xing)(xing)炭(tan)(Activated Carbon , A C )和活(huo)性(xing)(xing)炭(tan)纖維(Activated Carbon Fibers, ACF )等(deng)。活(huo)性(xing)(xing)炭(tan)材料(liao)作為一種(zhong)性(xing)(xing)能(neng)優良(liang)的(de)(de)(de)(de)吸附劑,主(zhu)要是由于其具(ju)有獨特的(de)(de)(de)(de)吸附表面(mian)(mian)(mian)結構(gou)特性(xing)(xing)和表面(mian)(mian)(mian)化(hua)(hua)學性(xing)(xing)能(neng)所(suo)決定的(de)(de)(de)(de)。活(huo)性(xing)(xing)炭(tan)材料(liao)的(de)(de)(de)(de)化(hua)(hua)學性(xing)(xing)質(zhi)(zhi)穩(wen)定,機械強度高,耐酸、耐堿、耐熱,不溶于水與有機溶劑,可以再(zai)生使用,已經(jing)廣(guang)泛地應用于化(hua)(hua)工(gong)、環保、食品加工(gong)、冶金、藥物(wu)精制、軍事(shi)化(hua)(hua)學防護(hu)等(deng)各個(ge)領域(yu) 。目前,改(gai)性(xing)(xing)活(huo)性(xing)(xing)炭(tan)材料(liao)被廣(guang)泛用于污水處(chu)理、大氣(qi)污染防治等(deng)領域(yu),在治理環境污染方面(mian)(mian)(mian)越來(lai)越顯示出其誘人(ren)的(de)(de)(de)(de)美(mei)好前景。

活(huo)(huo)(huo)性炭(tan)80%-90%以上由碳(tan)元(yuan)(yuan)(yuan)素(su)(su)組(zu)成,這(zhe)也是(shi)(shi)活(huo)(huo)(huo)性炭(tan)為(wei)疏水性吸附劑(ji)的(de)原因。除了碳(tan)元(yuan)(yuan)(yuan)素(su)(su)外,還包含有兩類(lei)摻和(he)(he)物(wu):一類(lei)是(shi)(shi)化(hua)(hua)(hua)學(xue)結(jie)合的(de)元(yuan)(yuan)(yuan)素(su)(su),主要是(shi)(shi)氧和(he)(he)氫,這(zhe)些元(yuan)(yuan)(yuan)素(su)(su)是(shi)(shi)由于未完全炭(tan)化(hua)(hua)(hua)而(er)殘(can)留在炭(tan)中,或者在活(huo)(huo)(huo)化(hua)(hua)(hua)過程(cheng)中,外來的(de)非碳(tan)元(yuan)(yuan)(yuan)素(su)(su)與活(huo)(huo)(huo)性炭(tan)表(biao)面化(hua)(hua)(hua)學(xue)結(jie)合,如(ru)用水蒸氣活(huo)(huo)(huo)化(hua)(hua)(hua)時(shi),活(huo)(huo)(huo)性炭(tan)表(biao)面被氧化(hua)(hua)(hua)或水蒸氣氧化(hua)(hua)(hua);另(ling)一類(lei)摻和(he)(he)物(wu)是(shi)(shi)灰分,它是(shi)(shi)活(huo)(huo)(huo)性炭(tan)的(de)無機部分。

活(huo)性(xing)(xing)(xing)炭(tan)(tan)(tan)的主要原料幾(ji)乎(hu)可(ke)以是所(suo)有(you)(you)(you)富含(han)碳的有(you)(you)(you)機材料,如煤、木材、果(guo)殼(ke)(ke)、椰殼(ke)(ke)、核桃殼(ke)(ke)、杏殼(ke)(ke)、棗殼(ke)(ke)等(deng)。這(zhe)(zhe)些含(han)碳材料在(zai)活(huo)化爐中,在(zai)高(gao)(gao)溫(wen)和(he)一定壓力下(xia)通過熱解作(zuo)(zuo)用(yong)被轉換(huan)成(cheng)活(huo)性(xing)(xing)(xing)炭(tan)(tan)(tan)。在(zai)此活(huo)化過程(cheng)中,巨大(da)的表(biao)面(mian)積和(he)復雜的孔(kong)(kong)(kong)隙(xi)結構逐漸形成(cheng), 而(er)所(suo)謂的吸(xi)附(fu)過程(cheng)正是在(zai)這(zhe)(zhe)些孔(kong)(kong)(kong)隙(xi)中和(he)表(biao)面(mian)上(shang)進(jin)行(xing)的,活(huo)性(xing)(xing)(xing)炭(tan)(tan)(tan)中孔(kong)(kong)(kong)隙(xi)的大(da)小對吸(xi)附(fu)質有(you)(you)(you)選擇吸(xi)附(fu)的作(zuo)(zuo)用(yong),這(zhe)(zhe)是由于大(da)分(fen)子(zi)不能進(jin)入比(bi)它(ta)孔(kong)(kong)(kong)隙(xi)小的活(huo)性(xing)(xing)(xing)炭(tan)(tan)(tan)孔(kong)(kong)(kong)徑內(nei)的緣故。活(huo)性(xing)(xing)(xing)炭(tan)(tan)(tan)是由含(han)炭(tan)(tan)(tan)為主的物質作(zuo)(zuo)原料,經高(gao)(gao)溫(wen)炭(tan)(tan)(tan)化和(he)活(huo)化制得的疏水(shui)性(xing)(xing)(xing)吸(xi)附(fu)劑。活(huo)性(xing)(xing)(xing)炭(tan)(tan)(tan)含(han)有(you)(you)(you)大(da)量微孔(kong)(kong)(kong),具(ju)有(you)(you)(you)巨大(da)無比(bi)的表(biao)面(mian)積,能有(you)(you)(you)效地去(qu)除(chu)色度、臭味,可(ke)去(qu)除(chu)二(er)級出水(shui)中大(da)多數有(you)(you)(you)機污(wu)染物和(he)某些無機物,包含(han)某些有(you)(you)(you)毒的重金屬。


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