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   料液温度 在 有机化工 分类中 的翻译结果: 查询用时:0.514秒
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料液温度
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  feed temperature
    It was found that the separation factor a increased and the flux J decreased as the layer number increased, The adsorption of 6.5 layer pairs of PDDA/PSS at the presence of 0.75mol/L NaCl yielded the maximum flux of 1498g/m2h and the minimum separation factor of 247 when the feed temperature was 55"C. Both separation factor and flux increased with elevating operation temperature.
    当层数为6.5个双层,盐浓度为0.75mol/L和料液温度为55℃时,分离因子和通量各达极大值和极小值,247和1498g/m~2h。 随着操作温度的提高,分离因子α和通量J呈同步增大的变化规律。
短句来源
    The effect of feed temperature and concentration on the seperation proper-ties of the membrane is investigated.
    考察了料液温度与浓度对膜分离性能的影响。
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    (g·m -2 ·h -1 ) and the separation factor 389 7 when the feed concentration of ethanol was 96 2%? (massfraction) and feed temperature 70? ℃.
    对应于最优交联时间的膜,当料液中乙醇质量分数(wE)为962%,料液温度(t)为70℃时,渗透通量(Jt)为337(g·m-2·h-1),分离因数(αW/E)为3897。
短句来源
    Pervaporation tests with feed concentration of ethanol from 30% to 98 3%? (massfraction) and feed temperature from 50? ℃ to 78?
    进一步考察了料液质量分数为30%~983%,料液温度为50~78℃时,交联膜的分离性能。
短句来源
    The higher the feed temperature is,the larger the hydrochloric acid concentration in the distillate would be.
    随着料液温度的升高 ,蒸馏液中盐酸浓度增大 ;
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  “料液温度”译为未确定词的双语例句
    The best working parameters of nanofiltration areas follows, the pressure is 0.7~2.0MPa, the flow temperature is 30℃ ,the flow velocity is18L/min and the condense ratio should be 5.6 times.
    纳滤膜的最佳工作条件:操作压力为 0.7~2.0 MPa,料液温度为 30℃,流量为 18L·min-1,浓缩倍数为 5.6 倍。
短句来源
    Among the three types filled PVA membranes, theperformance of CG-PVA membrane was the best. The separation factor was 100.1 andtotal permeation flux was 90.7g/(m~2h), when the CG-PVA membrane contained6.0wt% CG pervaporative separation of 50wt% Bz/Chx mixtures at 323K, keepingfeed flow rate 60L/h, downstream pressure below 0.1kPa.
    其中石墨填充聚乙烯醇膜的分离效果最好,分离50wt%苯的苯/环己烷混合液时,含石墨6.0wt%的CG02-PVA膜的分离因子达到100.1,总渗透通量达到90.7 g/(m~2h),料液温度为323K,料液流速为60L/h,下游侧压力小于0.1KPa。
短句来源
    The separation factor and total permeation flux of theblend membrane containing 50wt% chitosan were 49.9 and 51.4g/ (m~2h), respectively,at 323K, keeping feed flow rate 60L/h anddownstream pressure below 0.1kPa.
    结果表明,分离苯/环己烷混合液浓度为50wt%时,共混聚乙烯醇膜的总渗透通量可达到51.4 g/(m~2h),分离因子为49.9,料液温度为323K,料液流速为60L/h,下游侧压力小于0.1KPa。
短句来源
    The pervaporation apparent activity energy (Ea) of isopropanol and that of water were respectively 43.21 X 10~3·mo~(-1) and 17.36×10~3J·mol~(-1). The total Ea of PV separation of isopropanol/water increased with the decrease of the mass fraction of isopropanol.
    分离因子随料液温度升高、下游侧压力增加而降低,随异丙醇浓度增加而增大。 在所研究条件下,异丙醇的渗透表观活化能为43.21×10~3J·mol~(-1),大于水的渗透表观活化能17.36×10~3J·mol~(-1),总渗透表观活化能随异丙醇浓度的减小而增大。
短句来源
    Then, the supernatant was operated by ultrafiltration with cut-off molecular weight 30kD. The ultrafiltration operation was carried out at 0.2Mpa with pH value 7.0 ,3% protein concentration, 25 °C and 2L/min protein volume flux.
    在超滤阶段,采用截留分子量为30kD的膜包对沉淀后的上清液进行超滤,选择的超滤条件为:压力:0.2MPa、pH=7,料液浓度:0.3%、料液温度:25℃、料液的体积流量:2L/min。
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  feed temperature
inlet temperature, feed temperature and feed composition.
      
Systematic Study of Feed Temperature Control to High Performance Liquid Chromatography
      
Feed temperature control method, which is to appropriately control eluent at the column inlet at a temperature lower than the wall temperature, can modify the band shape and counteract such negative effects.
      
The reason is that the principle of feed temperature control is to reshape the solute concentration band, which depends on flow distribution.
      
The results illustrate that the flux of the membrane distillation increases with the rise of feed temperature and the vacuum degree of the vacuum side, but it decreases with the rise of the sulfuric acid concentration of the feed.
      
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Pervaporation properties of ethanol/water mixtures by several fluorocarbon polymer porous membranes as the ethanol permselective membrane are compared.The best membrane is PTFE membrane which has a suitable pore radius and high hy-drophobicity. The effect of feed temperature and concentration on the seperation proper-ties of the membrane is investigated.In the optimum conditions,the seperation factorand permeate flux are 8.04 and 1025 g/m ̄2h respectively.Continuously separatingethanol from a fermentation broth...

Pervaporation properties of ethanol/water mixtures by several fluorocarbon polymer porous membranes as the ethanol permselective membrane are compared.The best membrane is PTFE membrane which has a suitable pore radius and high hy-drophobicity. The effect of feed temperature and concentration on the seperation proper-ties of the membrane is investigated.In the optimum conditions,the seperation factorand permeate flux are 8.04 and 1025 g/m ̄2h respectively.Continuously separatingethanol from a fermentation broth by use of the membeane can increase the glucose converssion and ethanol productivity obviously.

比较了几种含氟微孔聚合物作为透醇膜的醇/水渗透蒸发性质,具有适中孔径的疏水微孔聚四氟乙烯改性膜性能最佳。考察了料液温度与浓度对膜分离性能的影响。在最佳条件下,膜的分离系数为8.04,透过通量达1025g/m ̄2h。在发酵时用该膜从发酵液中分离产物乙醇,使葡萄糖转化率与乙醇生产能力均获明显提高。

The separation of dioxane-water mixture by the Pervaporation processes through PVA-PAN composite membranes was investigated. Results are presented for membranes which are preferentially Permeable for water.Both the permeability and the selectivity to water increase with Pervaporation temperature. With increasing dioxane concentration in the feed, the selectivity to water increases and the permeability decreases. The value of flux Qis in the range of 70-700g/m2.h.The separation factor of the membraneranges between...

The separation of dioxane-water mixture by the Pervaporation processes through PVA-PAN composite membranes was investigated. Results are presented for membranes which are preferentially Permeable for water.Both the permeability and the selectivity to water increase with Pervaporation temperature. With increasing dioxane concentration in the feed, the selectivity to water increases and the permeability decreases. The value of flux Qis in the range of 70-700g/m2.h.The separation factor of the membraneranges between 50-198 1. Most of the results can be interpreted on the basis of solution diffusion model.The selectivity are determined by the diffusion selectivity at the dioxane concentration below 90%,but the absorption selectivity is Predominant at the concentration over 90%.

研究了二氧六环一水混合物在PVA(聚乙烯酸)-PAN(聚丙烯腈)复合膜中的渗透汽化分离性能。结果表明透过速率Q和分离系数α均随料液温度的提高而增大。α随料液中二氧六环浓度的提高而增大,Q的变化趋势相反.有代表性的数据是在90℃对95%的二氧六环水溶液,α可达1981,Q=73.8g/m2·h.在低浓度二氧六环溶液时扩散过程对选择性起主要作用。而高浓度时溶解选择性是主要的,随着分离温度的提高,扩散或溶解均提高了选择性。

The modified chitosan membranes filled with Si3N4, SiO2 or TiH4 superfine powders were formedand uesd to separate water-ethanol mixtures by pervaporation for the first time. It was found that the filled chitosan membranes had lower swelling and higher strength than that of the chitosan membranes. Withmembranes filled with the superfine powders, the separation factors and permeation rates increased atthe same time and reached maximun values at content of filler of 16.7%. The dependence of sepatationproperties...

The modified chitosan membranes filled with Si3N4, SiO2 or TiH4 superfine powders were formedand uesd to separate water-ethanol mixtures by pervaporation for the first time. It was found that the filled chitosan membranes had lower swelling and higher strength than that of the chitosan membranes. Withmembranes filled with the superfine powders, the separation factors and permeation rates increased atthe same time and reached maximun values at content of filler of 16.7%. The dependence of sepatationproperties on feed concentration and operating temperature was investigated.

首次制备了用Si3N4,SiO2,TiH4超细粉末填充的改性壳聚精膜,并将其用于乙醇/水混合液的分离中。实验表明壳聚糖膜经超细粉末填充后强度增大,溶胀度减小。用于乙醇/水混合液渗透蒸发分离时,分离因子和渗透通量都有提高,并在填充量为16.7%附近出现极大值。随着料液中乙醇含量的增大,渗透通量减小,分离因子增大;随着料液温度的升高渗透通量显著增大,分离因子则稍有下降。并简单讨论了超细粉末在乙醇/水混合液分离中的作用。

 
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