查询词典 distillation

The control problem of an internal thermally coupled distillation column is studied.

主要讨论和研究了高纯度热辐合精馏塔的优化控制问题。

The experimental results showed that using ionic liquid Et3NHCl-2AlCl3 under the conditions of an extraction temperature of 40℃, an extraction time of 40 min and an agent/oil ratio of 0.02, the sulfur removal rate was more than 90%. The ionic liquids could be used repeatedly for 4 times and the used ionic liquids could be regenerated by vacuum distillation, about 52.34% of the thiophen was recovered during regeneration.

实验结果表明，选用无水AlCl3与Et3NHCl的摩尔比为2.0的离子液体进行萃取脱硫实验，当萃取时间为40 min、温度为40 ℃、剂油体积比为0.02时，脱硫率可达到90%以上；离子液体不仅可以重复使用4次，而且还可以通过减压蒸馏的方法进行再生，在再生过程中可回收约52.34%的噻吩。

The reduced quasi-block tridiagonal matrix simultaneous correction algorithm based on LU decomposition is developed for interlinked distillation columns, which can successfully solve non-tridiagonal matrix caused by connecting stream or recycle stream of the column system.

提出了处理内联精馏塔系统的基于LU分解的压缩型拟块三对角矩阵方程组同时校正算法，解决了由于塔之间存在联接物流或回流而形成的非三对角矩阵方程的求解问题。

On the basis of the advantages of the previous distillation calculation algorithms, by eliminating the non—zero elements to the two sides of the tridiagonal band of elements in the component material balance equations by correlation of the draw rate from the main column to the sidestrippers and the return vapor stream from the sidestrippers to the main column, it changes these equations into a typical form of the tridiagonal matrix, and uses the simultaneous convergent strategy of the main column and the side strippers to speed the algorithm convergent rate.

在吸收前人蒸馏计算算法优点的基础上，通过求解主塔抽出到汽提塔的量和汽提塔返回主塔的蒸汽流之间的关联，以便消除组分物料平衡方程组系数阵中的三对角线两边的非零元素，使它转化为典型的三对角矩阵形式，而且使用主塔和汽提塔同时收敛策略，加快了算法收敛速度。

New definitions of true value ,random error and systematic error;2. The test value obtained through distillation pretreatment better approaches the true value .

本文通过试验论证了即使对较清洁的水，也以蒸馏法预处理为佳，蒸馏法预处理后的测定值更接近真值。

Our lab has many types of equipment, such as full-size ultracentrifuge, benchtop refrigerated ultracentrifuge, gel documentation system, ice machine, MILLIPORE, PCR thermocycler, autoclave, ultra freezer, UV/visible spectrophotometer, UV transilluminator, ultrasonic cleaner, culture shaker, stir plate, low-speed and full size centrifuge, automatic Kjeldahl distillation, gas chromatograph, HPLC system, fluorescence microscope, fatex, gliding microtome.

仪器设备包括生物育种用的高速冷冻离心机、台式冷冻离心机、凝胶成像分析系统、制冰机、超纯水制备系统、PCR仪、高压灭菌器、超低温冰箱、紫外可见分光光度计、紫外观测仪、超声波清洗、恒温摇床、磁力搅拌器、低速大容量离心机、全自动凯氏定氮仪、气相色谱仪、液相色谱仪、荧光显微镜、脂肪测定仪，冷冻切片机等40余件。

Volatile flavor components of unfermented smelly tofu were extracted by a simultaneous distillation-extraction apparatus and analyzed by gas chromatography-mass spectrometry.

通过同时蒸馏萃取得到非发酵臭豆腐的挥发性风味物质，并通过气相色谱-质谱联用仪进行分析，共有49种化合物被检出。

It was proposed in the 1960's and developed rapidly in the 1990's. However, some theory problems, for example, the fluid dynamics and mass transfer during the filling up period which could not be dealt with in conventional distillation theories has been remained unstudied. And the simulation and mathematical models have to be made based on some assumptions, which are different from the actual situation obviously. Therefore the further development of DACO was restrained in the past years.

该操作方法自20世纪60年代提出，90年代以来得到了迅速发展，但众多学者的研究基本上集中在优化操作及其与传统恒回流法的比较，而许多重要的基本理论问题至今缺乏研究，特别是传统精馏理论无法涉及的塔内无回流充液阶段的流体力学和传质问题一直没有得到很好解决，导致了动态累积循环操作法的数学模型和模拟计算只能以与塔内真实状况相差很大的简化假设为基础，这严重地阻碍着动态累积循环操作法的进一步发展。

Ethanol-gasoline ; distillation range ; saturated steam pressure ; evaporation ; vapor lock

乙醇汽油；馏程；饱和蒸汽压；蒸发性；气阻

I see. This vat is used for distillation.

大牛：哦，这个容器是做蒸馏用的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。