The effect of pulsing cleaning chemicals on the cleaning of whey protein deposits
The effect of pulsing cleaning chemicals on the cleaning of whey protein deposits
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DOI：
10.1205/fbp06039
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发表时间：
2006-12-01
影响因子：
4.6
通讯作者：
Fryer, P. J.
中科院分区：
文献类型：
--
作者：
Christian, G. K.;Fryer, P. J.
通过清洁化学品扩散到存款中，导致存款膨胀成能够通过流体剪切去除的形式，从而进行乳清蛋白污染表面的清洁。清洗过程中进行的机制进行了研究，在一系列的实验中，中试规模的板式换热器（PHE）和小磁盘的化学品和水的脉冲清洗。在清洗板式热交换器部分期间观察压降表明，扩散和去除可以分开;当水取代化学品时，压降增加，表明存款中已有的氢氧化钠仍在引起膨胀。冲洗可以去除肿胀的存款;这可能会减少清洁对环境的影响。通过研究小圆盘上存款的部分去除，使用热通量传感器测量热回收率，可以估计该过程的动力学。
Cleaning of whey protein fouled surfaces occurs by cleaning chemical diffusing into the deposit, causing swelling of the deposit into a form which is capable of being removed by fluid shear. The mechanisms ongoing during cleaning have been studied in a series of experiments in which pilot scale plate heat exchangers (PHE) and small disks are cleaned by pulses of chemical and water. Observation of the pressure drops during cleaning of plate heat exchanger sections shows that diffusion and removal can be separated; the pressure drop increases when water replaces chemical, suggesting that sodium hydroxide already in the deposit is still causing swelling. Rinsing can remove swollen deposit; that might reduce the impact of cleaning on the environment. An estimate of the kinetics of the process can be made by studying the partial removal of deposit on small disks, using heat flux sensors to measure thermal recovery.