During urea production management with CO2 stripping process, the optimum line of energy saving is to control the "3-highs" which are high load, high conversion and high quality by-product steam. 在CO2汽提法生产尿素的工艺管理上,控制高负荷、高转化率、高质量副产蒸汽是最佳的节能路线。
It is concluded from the analysis that the culprit of cracking is the mal-fluidization of stripping steam as all the crackings of stripping section have devel-oped near the steam. 认为沉降器汽提段穿孔部位均发生在汽提蒸汽附近,汽提蒸汽流化异常状态是造成穿孔的根本原因。
Discussion on the Stripping Stage Operating Line Equation of the Two component Continuous Rectification Tower with Direct Steam Injection 直接蒸汽加热时二元连续精馏塔提馏段操作线方程
A new design method of the half-dry atmospheric crude tower is presented in this article, in which stripper reboiler is used instead of stripping steam. 提出了炼油厂常减压装置半干式常压塔的设计方法,用侧线汽提塔再沸器代替汽提水蒸汽。
The energy-saving analysis was made on ammonia stripping with water steam method, by means of recovery and utilization of secondary steam and heat recovery of stripped water, the steam consumption rate is reduced. 对水蒸汽法蒸氨系统进行节能分析,通过对二次蒸汽的回收利用和蒸氨废水的热量回收,降低了蒸汽单耗。
Pre-stripping and multi-stage stripping intensify the contact between catalyst and steam so as to raise the stripping efficiency. 预汽提和多段汽提技术强化了催化剂和水蒸气之间的接触,提高了汽提效率。
However, for countercurrent process, this effect cannot be obtained if the stripping steam is not introduced. 而对逆流过程而言,如果不供给汽提蒸汽,则是达不到的。
Energy-saving Analysis on Ammonia Stripping with Water Steam Method 水蒸汽法蒸氨节能分析
Since the stripping steam directly contacted with oil and gas, after stripping, trace water existed in production cannot be avoid. 因汽提蒸汽直接与油、气接触,经汽提后的产品中不可避免地存在微量水;
In addition, the stripping properties of oil products, correlations for the compressibility factor and enthalpy of superheated steam were given. 此外,还给出了油品汽提性质、过热水蒸气焓及压缩因子的简化关联式。
This article presents the fluctuation of the level in the upper tower of the regenerator and analyzes its reasons, discusses the influence of stripping steam on the level, and gives the modification measures for lifting legs. 介绍再生塔上塔液位波动情况并分析原因,讨论汽提蒸汽对上塔液位波动的影响,提出升汽管的改进措施。
Commercial results showed that the hydrogen/ carbon ( H/ C) ratio of coke on spent catalyst decreased by 43%, coke combustion amount decreased by 1 percent point despite 16% decrease of the amount of stripping steam. 工业应用结果表明:在汽提蒸汽量下降16%的情况下,待生催化剂上焦炭的氢碳比值(H/C)同比降低了43%;
In addition, the concentration of SO2 decreases with the prolonging of residence time; and it increases first and then decreases with the increasing reaction temperature, catalyst/ oil ratio and stripping steam content. 此外,延长催化剂在反应器中的停留时间,烟气中SO2的浓度降低;而提高反应温度,剂油比,汽提蒸汽量,烟气中的硫含量都先略有增加后降低。
But reaction temperature and stripping steam do not affect it much. 但汽提蒸汽和反应温度的影响幅度较小。