樹脂吸附床
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樹脂吸附床
1.有(you)機廢氣(qi)吸附原理
吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)是(shi)具有(you)立體網(wang)狀(zhuang)結(jie)構，呈多孔(kong)海綿狀(zhuang)，不(bu)溶(rong)于一(yi)般溶(rong)劑(ji)及酸、堿的高分子聚合物。比表面(mian)積(ji)可(ke)達1000 m2/g以上，是(shi)一(yi)種新型的有(you)機吸(xi)(xi)附(fu)劑(ji)。采(cai)用不(bu)同(tong)(tong)的單體、交聯劑(ji)及成孔(kong)技術可(ke)以制得具有(you)不(bu)同(tong)(tong)的孔(kong)結(jie)構和(he)表面(mian)化學(xue)性(xing)(xing)(xing)質(zhi)等特征的樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)。根(gen)據表面(mian)性(xing)(xing)(xing)質(zhi)的不(bu)同(tong)(tong)，吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)可(ke)分為非極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)、中極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)、極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)。非極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)表面(mian)不(bu)含(han)極性(xing)(xing)(xing)官能(neng)(neng)團，吸(xi)(xi)附(fu)主(zhu)要(yao)依靠范(fan)德華(hua)力(li)，吸(xi)(xi)附(fu)能(neng)(neng)力(li)和(he)選擇(ze)性(xing)(xing)(xing)主(zhu)要(yao)根(gen)據比表面(mian)積(ji)和(he)孔(kong)徑分布決定。中極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)表面(mian)含(han)酯基(ji)一(yi)類的基(ji)團。極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)表面(mian)含(han)有(you)酰胺(an)基(ji)、亞砜基(ji)、酚羥基(ji)、腈基(ji)等基(ji)團，極性(xing)(xing)(xing)大(da)于脂(zhi)(zhi)(zhi)(zhi)基(ji)，吸(xi)(xi)附(fu)主(zhu)要(yao)依靠氫鍵(jian)和(he)偶極-偶極相互作用。
2.常用吸(xi)附劑特性(xing)
3.樹脂吸附劑特(te)點
吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)是(shi)具有(you)立體網(wang)狀(zhuang)結(jie)構，呈多孔(kong)海綿狀(zhuang)，不(bu)溶(rong)于一(yi)般溶(rong)劑(ji)及酸、堿的高分子聚合物。比表面(mian)積(ji)可(ke)達1000 m2/g以上，是(shi)一(yi)種新型的有(you)機吸(xi)(xi)附(fu)劑(ji)。采(cai)用不(bu)同(tong)(tong)的單體、交聯劑(ji)及成孔(kong)技術可(ke)以制得具有(you)不(bu)同(tong)(tong)的孔(kong)結(jie)構和(he)表面(mian)化學(xue)性(xing)(xing)(xing)質(zhi)等特征的樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)。根(gen)據表面(mian)性(xing)(xing)(xing)質(zhi)的不(bu)同(tong)(tong)，吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)可(ke)分為非極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)、中極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)、極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)。非極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)表面(mian)不(bu)含(han)極性(xing)(xing)(xing)官能(neng)(neng)團，吸(xi)(xi)附(fu)主(zhu)要(yao)依靠范(fan)德華(hua)力(li)，吸(xi)(xi)附(fu)能(neng)(neng)力(li)和(he)選擇(ze)性(xing)(xing)(xing)主(zhu)要(yao)根(gen)據比表面(mian)積(ji)和(he)孔(kong)徑分布決定。中極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)表面(mian)含(han)酯基(ji)一(yi)類的基(ji)團。極性(xing)(xing)(xing)吸(xi)(xi)附(fu)樹(shu)(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)表面(mian)含(han)有(you)酰胺(an)基(ji)、亞砜基(ji)、酚羥基(ji)、腈基(ji)等基(ji)團，極性(xing)(xing)(xing)大(da)于脂(zhi)(zhi)(zhi)(zhi)基(ji)，吸(xi)(xi)附(fu)主(zhu)要(yao)依靠氫鍵(jian)和(he)偶極-偶極相互作用。
2.常用吸(xi)附劑特性(xing)
|
吸附劑 |
平均孔徑 |
比表面積 |
堆積密度 |
|
沸石分子篩 |
3-10 |
400-750 |
0.6-0.75 |
|
活性炭顆粒 |
15-50 |
700-1500 |
0.35-0.6 |
|
活性(xing)炭(tan)纖(xian)維 |
5-15 |
900-1500 |
|
|
樹脂 |
10-50 |
800-1300 |
0.65-0.75 |
3.樹脂吸附劑特(te)點
（1）具有疏水性
（2）比表面積大、吸附量大、易脫(tuo)附
（3）無催化作用、吸(xi)附(fu)現象廣(guang)
（4）機械(xie)強度高(gao)、使用壽命高(gao)
4.相關(guan)案例(li)
