reflux ratio 中文意思是什麼

reflux ratio 解釋
返流比
  • reflux : n. 1. 迴流，反流，倒流，逆流；退潮。2. 【化學】迴流加熱。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Determining of the smallest reflux ratio of distillation operation

    談精餾操作最小迴流比的確定
  2. The results indicate that the position of sensitive plates is located at the section of middle or upper in tower but not near by feeding plate, and the smaller reflux ratio, the closer overhead of distillation tower. accurate calculation for flash is solved using matlab, and the result is correct and reasonable. complicated multi - components distillation and crude distillation are simulated using chemcad, and results are reasonable about profiles of flow for vapor and liquid as well as temperature in the tower

    數值分析的結果表明精餾塔靈敏板位置並不在進料板附近，而是位於精餾段的中上部，且迴流比愈小，愈靠近塔頂;利用matlab實現了蒸餾過程的嚴格計算，與參考值比較，結果正確、合理;藉助于chemcad進行常減壓塔的穩態模擬計算，得出了流量和溫度在塔內的分佈，經過理論分析，結果合理，可為實際生產提供參考。
  3. Putting the potassium permanganate into the filter can improve its effect, the removal of organics and ammonia is increased, the influent concentration can satisfy the water reuse standard. but the turbidity of influent is unsatisfactory. the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed. the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2, hydraulic loading is 2. 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1. the influent concentration of organics is blow 7mg / l. from the beginning to 30cm of the anoxic filter, the removal of the organics is significant ; as the c / n ratio increasing, the influent concentration of ammonia is decreasing. when the c / n ratio is 3. 60, the enfluent concentration of ammonia is 3. 05mg / l which satisfies the water reuse standard. when the c / n ration is less than 3. 60, because of the imperfection

    迴流比為2 : 1 ，水力負荷為2 . 55m3 / m2 ? h ，好氧柱氣水比為3 : 1時試驗表明:不同的c / n （ 1 . 05 7 . 45 ）下，兩級曝氣生物濾池對有機物有很好的去除作用，出水有機物濃度小於7mg / l ，其中在缺氧柱進水端30cm內對有機物的去除最為明顯;隨著c / n的增加，系統出水氨氮濃度降低，當c / n為3 . 60時，出水氨氮濃度降到3 . 05mg / l ，已經滿足回用水的氨氮標準; c / n < 3 . 60時，因為缺氧柱的不完全反硝化，體系中硝酸鹽氮和亞硝酸鹽氮發生積累影響了好氧柱的硝化反應使氨氮降解效果較差;系統對總氮的去除隨著c / n的增加而增加，當c / n為3 . 60時，出水總氮已經降到11 . 18mg / l ，滿足回用水的要求。
  4. Minimum reflux ratio

    最小回寥
  5. Limiting concentration of light component in distillate of binary batch distillation under constant reflux ratio

    恆迴流比二元間歇精餾輕組分的極限濃度
  6. A numeric method for computing limiting concentration of light component in the distillate of binary batch distillation under constant reflux ratio and hold - up in the column is introduced

    摘要介紹了採用恆迴流比操作方法，在塔頂、塔板持液時，間歇精餾二元理想混合物，餾出液中輕組分極限濃度的數值計算方法。
  7. The treatment course for both was 3 weeks. wt5hz results the symptom score and esophageal pressure obviously decreased pwtbz005, esophageal pressure was relieved remarkably p005 in both groups after treatment with insignificant difference between the groups p005. the ratio of 24h esophageal reflux times and total reflux time, the times of reflux lasting for more than 5 min and the maximum reflux time were all lowered obviously in all patients after treatment, and the improvements was significantly different between the two groups p005. upper gastrointestinal endoscopy suggested obvious amelioration in esophagitis

    結果治療后兩組癥狀積分均較入選時有明顯下降pwtbz005 ，兩組之間差異無顯著性食管壓力有明顯改善p005 ，兩組之間差異無顯著性24 h食管ph4反流總時間百分率有明顯下降p005 ，酸反流大於5 min次數及最長反流時間也有下降p005 ，兩組之間差異有顯著性p005上消化道鏡提示，食管炎有明顯改善p005 ，但兩組間差異無顯著性總體療效顯示，治療組有效率975 % ，對照組有效率800 % ，組間比效差異有顯著性p005 ，治療組未見明顯不良反應。
  8. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. simulation calculations of general distillation and azeotropic distillation were carried out. the influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed

    （ 3 ）與普通精餾比較，分離要求相同時，共沸精餾時所需要的理論板數要低於普通精餾所需要的理論板數，迴流比減小，可降低設備投資70萬元，塔釜加熱量減少36 % 。
  9. The effect of reflux temperature, reflux ratio and reaction pressure on the oxidation process was simulated

    用此模型考察了反應壓力、冷凝迴流溫度和迴流比對反應過程的影響。
  10. The results show that the yield of terephthalic acid increases and the mass fraction of 4 - carboxybenzaldehyde decreases when the reflux temperature or the reaction pressure increases, or when the reflux ratio decreases, but that the combustion rate of p - xylene and acetic acid increase simultaneously

    計算表明：冷凝迴流溫度的升高、迴流比的降低和反應壓力的升高都導致反應溫度增加，雖然醋酸和對二甲苯的副反應消耗增加，但液相中對羧基苯甲醛的質量分數降低和反應收率增加。
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