8分子篩變溫吸附實(shí)驗(yàn)

二、 實(shí)驗(yàn)記錄實(shí)驗(yàn)日期2019年_0乞月日氣壓758mmHg室溫269氣象情況晴(包括實(shí)驗(yàn)現(xiàn)象的觀察，實(shí)驗(yàn)數(shù)據(jù)的記錄)通過實(shí)驗(yàn)總結(jié)實(shí)驗(yàn)步驟如下(一)準(zhǔn)備工作(1)檢查CO2氣瓶氣體壓力，確保氣體足夠?qū)嶒?yàn)。(2)檢查CO2氣瓶接口的氣密性，打開氣瓶閥門，利用肥皂水檢測接口是否漏氣。(3)檢查工作面板、儀表等設(shè)備是否正常工作。(4)檢查相關(guān)閥門的開閉狀態(tài)。(二)系統(tǒng)的啟動與運(yùn)行吸附實(shí)驗(yàn)確定緩沖罐手孔處于密閉狀態(tài)，吸附塔上所有采樣口閥門處于關(guān)閉狀態(tài)。打開控制箱電源，檢查溫度表盤顯示是否正常，啟動數(shù)據(jù)自動采集系統(tǒng)打開閥門y-v4，其中v2和V全開。通過調(diào)節(jié)分流閥V［調(diào)節(jié)流量計(jì)1的流量為200~250L3/h打開CO2氣瓶閥門，調(diào)節(jié)V3使流量計(jì)2的流量為20~40mb/h。通過調(diào)節(jié)匕和V3使CO2進(jìn)口濃度保持在6000~9000ppm。利用數(shù)據(jù)采集系統(tǒng)，在不同時(shí)刻分別記錄出口氣體CO2濃度。8?待出口氣體CO2濃度接近進(jìn)口濃度后，首先關(guān)閉CO2氣瓶閥門，然后關(guān)閉V3，吸附過程結(jié)束。熱解吸過程確保V3已關(guān)閉。通過調(diào)節(jié)分流閥y調(diào)節(jié)流量計(jì)保持原有n2的流速。當(dāng)出口CO2濃度接近穩(wěn)定，降到1000ppm以下時(shí)，打開風(fēng)機(jī)，啟動電加熱系統(tǒng)開始熱風(fēng)解吸。當(dāng)出口CO2濃度接近300ppm時(shí)（通常40?60分鐘），關(guān)閉電加熱系統(tǒng)。保持主風(fēng)機(jī)工作，持續(xù)通風(fēng)至T4溫度低于309后，可關(guān)閉主風(fēng)機(jī)，關(guān)閉所有閥門。關(guān)閉數(shù)據(jù)采集系統(tǒng)，關(guān)閉控制箱主開關(guān)。三、 撰寫實(shí)驗(yàn)報(bào)告1.數(shù)據(jù)處理（包括計(jì)算示例、數(shù)據(jù)圖表）根據(jù)所測數(shù)據(jù)作圖如下：時(shí)間T實(shí)驗(yàn)原始數(shù)據(jù)列表如下：時(shí)間出口濃度ppm時(shí)間出口濃度ppm18:50:0021518:53:0019718:50:3021418:53:3021218:51:0020618:54:0023118:51:3021318:54:3020618:52:0020218:55:0020418:52:3018218:55:30228時(shí)間出口濃度ppm時(shí)間出口濃度ppm18:56:0023219:10:303480

18:56:3023519:11:00362918:57:0024719:11:30379418:57:3028119:12:00398518:58:0029819:12:30412918:58:3032119:13:00422918:59:0035919:13:30434618:59:3040819:14:00446319:00:0045219:14:30458419:00:3051219:15:00466819:01:0058219:15:30477419:01:3066019:16:00483119:02:0072519:16:30489619:02:3082619:17:00497319:03:0093519:17:30501819:03:30105919:18:00506719:04:00119319:18:30513019:04:30132519:19:00515219:05:00148019:19:30520919:05:30163919:20:00526619:06:00201419:20:30527919:06:30210419:21:00530719:07:00216419:21:305310

19:07:30235819:22:00530319:08:00255319:22:30531219:08:30272219:23:00534919:09:00293019:23:30536219:09:30316019:24:005362時(shí)間出口濃度ppm時(shí)間出口濃度ppm19:25:00538219:39:30304019:25:30537419:40:00288919:26:00540419:40:30280319:26:30544619:41:00269019:27:00545019:41:30256819:27:30546419:42:00248619:28:00542919:42:30238119:28:30541919:43:00229219:29:00546519:43:30220419:29:30546419:44:00212919:30:00545419:44:30205719:30:30543519:45:00197519:31:00546519:45:30190919:31:30545919:46:00183519:32:00542519:46:30178219:32:30535519:47:001731

19:33:00521219:47:30167319:33:30507519:48:00162819:34:00491919:48:30156519:34:30476619:49:00151219:35:00457219:49:30150219:35:30436619:50:00146519:36:00418819:50:30140419:36:30397919:51:00135519:37:00381819:51:30131619:37:30367619:52:00129419:38:00352619:52:30124919:38:30336919:53:001207時(shí)間出口濃度ppm時(shí)間出口濃度ppm19:54:00115720:08:3065319:54:30113920:09:0064119:55:00112020:09:3063219:55:30107620:10:0064919:56:00104220:10:3063419:56:30102620:11:0059619:57:00100620:11:3057519:57:30100118:50:0021519:58:0097718:50:30214

19:58:3095618:51:0020619:59:0093918:51:3021319:59:3092018:52:0020220:00:0090818:52:3018220:00:3086518:53:0019720:01:0084018:53:3021220:01:3084518:54:0023120:02:0085118:54:3020620:02:3083718:55:0020420:03:0080818:55:3022820:03:3080118:56:0023220:04:0076518:56:3023520:04:3075418:57:0024720:05:0073218:57:3028120:05:3072318:58:0029820:06:0072218:58:3032120:06:3071218:59:0035920:07:0069218:59:3040820:07:3066619:00:00452時(shí)間出口濃度ppm時(shí)間出口濃度ppm19:01:0058219:15:30477419:01:3066019:16:004831

19:02:0072519:16:30489619:02:3082619:17:00497319:03:0093519:17:30501819:03:30105919:18:00506719:04:00119319:18:30513019:04:30132519:19:00515219:05:00148019:19:30520919:05:30163919:20:00526619:06:00201419:20:30527919:06:30210419:21:00530719:07:00216419:21:30531019:07:30235819:22:00530319:08:00255319:22:30531219:08:30272219:23:00534919:09:00293019:23:30536219:09:30316019:24:00536219:10:00335419:24:30538719:10:30348019:25:00538219:11:00362919:25:30537419:11:30379419:26:00540419:12:00398519:26:30544619:12:30412919:27:005450

19:13:00422919:27:30546419:13:30434619:28:00542919:14:00446319:28:30541919:14:30458419:29:005465時(shí)間出口濃度ppm時(shí)間出口濃度ppm19:30:00545419:44:30205719:30:30543519:45:00197519:31:00546519:45:30190919:31:30545919:46:00183519:32:00542519:46:30178219:32:30535519:47:00173119:33:00521219:47:30167319:33:30507519:48:00162819:34:00491919:48:30156519:34:30476619:49:00151219:35:00457219:49:30150219:35:30436619:50:00146519:36:00418819:50:30140419:36:30397919:51:00135519:37:00381819:51:30131619:37:30367619:52:00129419:38:00352619:52:301249

19:38:30336919:53:00120719:39:00320119:53:30118419:39:30304019:54:00115719:40:00288919:54:30113919:40:30280319:55:00112019:41:00269019:55:30107619:41:30256819:56:00104219:42:00248619:56:30102619:42:30238119:57:00100619:43:00229219:57:30100119:43:30220419:58:00977時(shí)間出口濃度ppm時(shí)間出口濃度ppm19:59:0093920:07:3066619:59:3092020:08:0064120:00:0090820:08:3065320:00:3086520:09:0064120:01:0084020:09:3063220:01:3084520:10:0064920:02:0085120:10:3063420:02:3083720:11:0059620:03:0080820:11:3057520:03:3080120:12:0056720:04:0076520:12:3057420:04:3075420:13:0057120:05:0073220:13:3055320:05:3072320:14:0056520:06:0072220:14:3051420:06:3071220:15:0051420:07:0069220:15:30521通過測定實(shí)驗(yàn)可知，溶液中吸附質(zhì)濃度越高，透過曲線向上凸度越大，破點(diǎn)越明顯；顆粒粒徑越小，其內(nèi)擴(kuò)散速率越快，吸附平衡則越快達(dá)到，破點(diǎn)越明顯，曲線也月陡峭。吸附質(zhì)量越好則破點(diǎn)月明星。吸附劑劣化程度越低，透過曲線越明顯出現(xiàn)陡峭，破點(diǎn)也相應(yīng)更加明顯。四、自評（包括實(shí)驗(yàn)收獲）通過本次分子篩吸附劑透過曲線測定實(shí)驗(yàn)，在實(shí)驗(yàn)預(yù)習(xí)時(shí)我充分了解了了解固定床吸附器、分子篩吸附劑吸附的基本原理，經(jīng)過親身操作實(shí)驗(yàn)儀器混合實(shí)驗(yàn)數(shù)據(jù)的處理，我掌握了掌握吸附透過曲線的測定方法。此外，我還了解到，固定床吸附器是裝有顆粒狀吸附劑的塔式設(shè)備，其具有結(jié)構(gòu)簡單、操作方便等優(yōu)點(diǎn)，是吸附分離中應(yīng)用最廣泛的一類吸附器。常用于氣體中回收溶劑、氣體和液體的脫水以及難分離有機(jī)液體混合物的分離等。固定床循環(huán)操作由兩個(gè)主要階段組成：在吸附階段，欲處理的流體不斷地通過床層，吸附質(zhì)被吸附在吸附劑上，其余部分由出口流出。吸附階段可持續(xù)到吸附劑飽和為止；在解吸（再生）階段，用升