The Experts below are selected from a list of 18 Experts worldwide ranked by ideXlab platform
Ali S Ismail - One of the best experts on this subject based on the ideXlab platform.
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development of a new method for reducing the loss of light hydrocarbons at Breather Valve of oil tanks
Energy Procedia, 2017Co-Authors: Marwan M Farhan, Muthana M Aljumialy, Ahmed D Almuhammadi, Ali S IsmailAbstract:Abstract This work including, the possibility of reducing the loss of light hydrocarbons by introducing micro-quantities of an additive having surface-active properties as new method. There have been successful attempt to use free fatty acid (FFA) on the form of artificial salt to reduce the loss of light hydrocarbons. The optimal concentration of this salt was determined by estimating the lowest pressure saturated with steam its (8 mg/kg). It was found that the evaporation rate reduced to 47% in the oil tanks. It has been observed that the effect of adding this compound to the oil tank is to be slightly, it was also found that the presence of artificial salt compound at the bottom of the tank is 10%. In this case, it appeared to be advantageous to use this method for reduce the loss of light hydrocarbons, which should prevent the loss of light hydrocarbons.
Marwan M Farhan - One of the best experts on this subject based on the ideXlab platform.
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development of a new method for reducing the loss of light hydrocarbons at Breather Valve of oil tanks
Energy Procedia, 2017Co-Authors: Marwan M Farhan, Muthana M Aljumialy, Ahmed D Almuhammadi, Ali S IsmailAbstract:Abstract This work including, the possibility of reducing the loss of light hydrocarbons by introducing micro-quantities of an additive having surface-active properties as new method. There have been successful attempt to use free fatty acid (FFA) on the form of artificial salt to reduce the loss of light hydrocarbons. The optimal concentration of this salt was determined by estimating the lowest pressure saturated with steam its (8 mg/kg). It was found that the evaporation rate reduced to 47% in the oil tanks. It has been observed that the effect of adding this compound to the oil tank is to be slightly, it was also found that the presence of artificial salt compound at the bottom of the tank is 10%. In this case, it appeared to be advantageous to use this method for reduce the loss of light hydrocarbons, which should prevent the loss of light hydrocarbons.
Lai Hou-tsan - One of the best experts on this subject based on the ideXlab platform.
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Treatment of Waste Gases from VOC Storage Tanks of Taichung Port via a Trickle-Bed Air Biofilter
環境工程學系所, 2014Co-Authors: Lai Hou-tsanAbstract:臺中港港區中除內浮頂槽外，其餘於大多使用活性碳吸附之防制設備為主。活性碳吸附法是利用活性碳之吸附特性來去除廢氣中污染物質，其優點為操作簡單、節省能源以及適用廢氣種類廣，但當廢氣濃度較高、排放量大時，龐大的換碳量會使得花費相當可觀，本研究以生物濾床進行臺中港區儲槽廢氣處理，將儲槽呼吸閥所釋放之對-二甲苯（para-xylene, pX）蒸氣導入生物濾床中，進行效能測詴及操作條件之建立，期望能夠解決環境中的儲槽 pX 氣體逸散問題。 以全尺寸生物濾床設備連接三座對-二甲苯貯槽，將各貯槽之呼吸閥廢氣收集後導入生物濾床設備進行處理，並利用安裝於管線上的偵測器進行系統入口及出口之採樣監測，藉以了解評估貯槽排放特性與生物濾床的處理效率，系統運作初期由於濾床內微生物尚在馴養階段，故系統處理效率較低，隨著馴養時間的增長，反應器內微生物量逐漸增加，第36天後系統每日削減率可提升至90%左右。操作期間長達6個月，進流氣流溫、濕度條件，分別介於33.9 ~26.0℃及30.6 ~54.3%詴程進行中，進流濃度範圍為500 ~ 300ppmv。對於現場三座儲槽VOCs的削減量達到4710 kg，帄均每月可減少785 kg的VOCs逸散，若以每公斤$30之空污費費率做計算，此系統已節省$141,300的空污費支出。 以生物濾床法處理臺中港儲槽VOCs，經過實際測詴評估，對固定頂儲槽靜置損失部分有良好的處理效果、且操作便利及實用價值高等優點，且無二次污染及後續處理問題，實備積極推廣的潛力及實用價值，得協助台灣地區有效解決VOCs的污染程度，具體提升整體空氣品質的掌握。The study adopted the air pollution method to implement the treatment for exhaust gas storage tank containing (p-xylene, pX) Due to the lack of adequate air pollution control devices, the gaseous pollutant are partially emitted from the Breather Valve. This study, by using the trickle-bed air biofilter (TBAB) method, may efficially reduce the emission of pX gas. The emitting gas was collected and directly led to TBAB. The ditector on pipe can monitor the system exit and provided information. This was to assess the optimal operational criteria and estimating the efficiency of TBAB. In initial operation, the microorganisms was incubing, so the implement rate was lower. With the time increasing, the among of microorganisms would raise. After 36 days, the efficiency reached 90%. Then 6 months later, the quantity of VOCs reduced to 4710kg (785kg/month). TBAB system cut $141,300 in air pollution expense. According the experiment result, it could be concluded that a stable and efficient treatment technology for standing storage VOC loss from fixed roof organic liquid tanks can be deployed. This consists of an AC buffer with a sufficient amount of AC to supply a suitable in- let VOC concentration to full-scale biofilter providing a good performance. This experimental setup won't lead to second pollution or other problems in the future. TBAB system can efficiently reduce VOCs pollution, raising the air quality in Taiwan.摘要 ...........................................................i 目錄 ......................................................... iii 圖目錄 ......................................................... v 表目錄 ........................................................ vi 第一章 前言 .................................................... 1 第二章 文獻回顧 ................................................ 4 2.1 VOCs 的特性、危害與來源 .................................. 4 2.2 儲槽的種類、排放特性及排放量推估 ......................... 7 2.2.1固定頂槽 ............................................. 9 2.2.2 浮頂槽 .............................................. 10 2.3 常見的 VOCs 控制方法與選用 .............................. 15 2.4 生物處理法原理 .......................................... 23 2.4.1 生物濾床法 .......................................... 24 2.4.2 生物滴濾塔法 ........................................ 29 2.4.3 生物洗滌塔法 ........................................ 30 2.5 生物濾床法之影響因子 .................................... 33 2.5.1 濾材種類 ............................................ 34 2.5.2 溫度 ................................................ 35 2.5.3 濕度 ................................................ 36 2.5.4 pH值 ............................................... 37 2.5.5 營養鹽 .............................................. 37 2.5.6 氣流流向 ............................................ 37 2.5.7 進流負荷 ............................................ 38 2.5.8 產業類別 ............................................ 38 第三章 港區儲槽背景資料 ....................................... 40 3.1 污染來源及現況 .......................................... 40 3.2 許可申請狀況 ............................................ 43 3.3 臺中港區西碼頭區儲槽型式 ................................ 44 3.4 儲存物料種類及儲存量 .................................... 46 3.5 清查排放量 .............................................. 48 3.6 空氣污染防制設備設置情形 ................................ 51 3.7 法規符合度 .............................................. 51 3.7.1 相關管制法規 ........................................ 51 3.7.2 查核結果 ............................................ 57 3.8 減量效益與可減量空間 .................................... 59 vi 3.9 其他 .................................................... 60 第四章 詴驗設備及操作 ......................................... 62 4.1 全尺寸生物濾床設計 ...................................... 62 4.2 廢氣收集管線重新配置作 .................................. 63 4.3 建造與詴車 .............................................. 65 4.3.1 現場設備連接 ........................................ 65 4.3.1.1 濃度緩衝器 ...................................... 65 4.3.1.2 氣體增濕系統 .................................... 65 4.3.1.3 風量控制系統 .................................... 66 4.3.1.4 灑水保濕系統 .................................... 66 4.3.1.5 生物濾床反應器本體 .............................. 67 4.3.2 監測項目與分析方法 .................................. 69 第五章 結果與討論 ............................................. 71 5.1 系統操作與監測結果 ...................................... 71 5.1.1 每日氣流溫濕度變化 .................................. 71 5.1.2 壓差 ................................................ 71 5.1.3 每日系統對二甲苯進出總量與去除效率 .................. 73 5.1.4 工作損失排放量、削減量與去除效率 .................... 74 5.1.5 靜置損失濃度、流量與溫度變化 ........................ 76 5.1.6 裝載操作排放之排放/削減量 ........................... 79 5.2 討論 .................................................... 82 第六章 結論與建議 ............................................. 88 6.1 結論 .................................................... 88 6.2 建議 .................................................... 89 參考文獻-國內 ................................................ 90 參考文獻-國外 ................................................ 92 附錄 ......................................................... 9
Liao Wei-sheng - One of the best experts on this subject based on the ideXlab platform.
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Treatment of Waste Gases from VOCs Storage Tank of Resin Manufacturing Industry via Trickle-Bed Air Biofilters
環境工程學系所, 2014Co-Authors: Liao Wei-shengAbstract:本實驗以生物濾床進行樹脂廠儲槽廢氣處理，將儲槽呼吸閥所釋放之丙烯酸乙酯(ethyl acrylate, EA)蒸氣導入生物濾床中，進行效能測試及操作條件之建立，期望能夠解決環境中的儲槽EA氣體逸散問題。 其試程主要分為二部分，第一部分為實驗室試驗於實驗室中進行，第二部分為實場測試於實場進行。第一部分實驗室試驗為透過人工供應方式，提供EA之來源。主要目的在於微生物的馴養以利於第二部分實場測試時之生物濾床的啟動；及測試生物濾床最大EA處理容量、去除效率評估。於第一部分結果發現，由縮短停留時間及增加進流濃度逐步增加EA進流負荷，停留時間由90 sec縮短至30 sec(風量為80-240 lpm)，進流濃度介於85.1-557.3 ppmv，因此進流負荷由3.3 mg-C/min (1.65g-C/m3hr)增加至65.5 mg-C/min (32.8g-C/m3hr)。實驗室測試結果，當有機碳負荷達65.5 mg-C/min (32.8g-C/m3hr)，去除效率可達到91 %，顯示生物濾床法為一有效之VOCs處理方法，並符合節能、低成本及操作維護之空氣污染防治設備。 第二部分實場測試，主要目的在評估實場應用之適合操作條件、可能遭遇狀況問題及生物濾床全尺寸之設計。其監測包括單日連續監測，用以建立儲槽排放特性之基本資料；逐日監測，用以測試適合之應用條件。其監測項目包括EA之進流濃度、活性碳箱後濃度、生物濾床出口濃度、二氧化碳濃度、溫度與相對濕度等。而於第二部分實場試驗發現，進流負荷達34.8mg-C/min (17.4g-C/m3hr)，去除效率可達到83 %，顯示生物濾床面對實場之操作環境仍可發揮效能。This study adopted the air biofilter method to implement the treatment for exhaust gas storage tank containing (ethyl acrylate, EA) The EA steam released from the Breather Valve was directed into the biofilter unit. Then, the efficacy test and operating condition were established. Subsequently, this study may solve the current environmental problem in EA gas emission. On the other hand, the experimental process was mainly divided into two sections. The first stage was the experiment in the laboratory where the source of EA was artificially produced. Additionally, the purpose of the first section was to culture the microorganisms and promote the initiation of the biofilter during the field study in the second stage. Besides, the largest elimination capacity of EA by biofilter was determined and the removal efficiency was assessed. From the result of the first section, this study revealed that the EA loading gradually increased by reducing the empty-bed residence time (EBRT) and increasing the influent concentration. When the EBRT was shortened from 90 sec to 30 sec (air flow rate at 80 - 240 lpm) and the influent concentration was between 85.1-557.3 ppmv, the loading expanded from 3.3 mg-C/min (1.65g-C/m3hr) to 65.5 mg-C/min (32.8g-C/m3hr). The results obtained from the laboratory experiment showed that the removal efficiency achieved 91% when the loading reached 65.5 mg-C/min (32.8g-C/m3hr). Therefore, it was proved that biofilter was an effective method to treat VOCs. In addition, the second stage was the field study. The main purpose of the field test was to assess the optimal operational criteria and possible problems encountered during the field application, as well as the design of the full scale biofilter unit. Moreover, the monitoring of the biofilter unit included the continuous monitoring in a single day (to establish the fundamental information of the emission properties) and consecutive daily monitoring (for the determination of optimal application criteria). From the field study in the second stage, the result shown that biofilter was able to attain 83% in removal efficiency when the loading reached 34.8 mg-C/min (17.4g-C/m3hr). This fact also revealed that biofilter was still effective during the operating environment in the field study.摘要 i 目錄 v 圖目錄 vii 表目錄 viii 第一章 前言 1 第二章 文獻回顧 4 2-1 VOCs的特性、危害與來源 4 2-2 儲槽的種類、排放特性及排放量推估 8 2-2-1 固定頂槽 10 2-2-2 浮頂槽 12 2-3 常見的VOCs控制方法與選用 18 2-4 生物處理法原理 27 2-4-1 生物濾床法 29 2-4-2 生物滴濾塔法 36 2-4-3 生物洗滌塔法 37 2-5 生物濾床法之影響因子 41 2-5-1 濾材種類 42 2-5-2 溫度 43 2-5-3 濕度 44 2-5-4 pH值 45 2-5-5 營養鹽 45 2-5-6 氣流流向 46 2-5-7 進流負荷 46 2-5-8 產業類別 47 第三章 試驗設備及操作 48 3-1 實驗室試驗 48 3-1-1 模場生物濾床 48 3-1-2 操作條件及進行步驟 53 3-2 實場試驗 53 3-2-1 實場簡介 53 3-2-2 操作條件及進行步驟 57 3-3 分析項目 57 第四章 結果與討論 62 4-1 實驗室試驗 62 4-1-1 實驗室試驗之溫度與濕度 62 4-1-2 進流負荷與去除效率之關係 62 4-1-3 進流負荷與處理容量之關係 63 4-2 實場試驗 67 4-2-1 實場逐日採樣監測之結果 67 4-2-2 實場試驗之溫度與濕度 72 4-2-3 實場二氧化碳產生量 74 4-2-4 實場全日採樣監測結果 75 第五章 結論與建議 82 5-1結論 82 5-2建議 84 第六章 生物濾床全尺寸設計 85 參考文獻-國內 86 參考文獻-國外 8
Muthana M Aljumialy - One of the best experts on this subject based on the ideXlab platform.
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development of a new method for reducing the loss of light hydrocarbons at Breather Valve of oil tanks
Energy Procedia, 2017Co-Authors: Marwan M Farhan, Muthana M Aljumialy, Ahmed D Almuhammadi, Ali S IsmailAbstract:Abstract This work including, the possibility of reducing the loss of light hydrocarbons by introducing micro-quantities of an additive having surface-active properties as new method. There have been successful attempt to use free fatty acid (FFA) on the form of artificial salt to reduce the loss of light hydrocarbons. The optimal concentration of this salt was determined by estimating the lowest pressure saturated with steam its (8 mg/kg). It was found that the evaporation rate reduced to 47% in the oil tanks. It has been observed that the effect of adding this compound to the oil tank is to be slightly, it was also found that the presence of artificial salt compound at the bottom of the tank is 10%. In this case, it appeared to be advantageous to use this method for reduce the loss of light hydrocarbons, which should prevent the loss of light hydrocarbons.