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    • 4. 发明申请
    • REGENERATION METHOD WITH EFFICIENT OXYGEN UTILIZATION
    • 有效氧气再利用方法
    • WO2009058133A1
    • 2009-05-07
    • PCT/US2007/083013
    • 2007-10-30
    • UOP LLCYUAN, LeonBIXBY, James L.AUSTIN, Kyle P.NABOZNY, Brian D.
    • YUAN, LeonBIXBY, James L.AUSTIN, Kyle P.NABOZNY, Brian D.
    • B01J38/12
    • B01J38/12B01J23/96C10G11/182
    • This invention relates to regeneration of coked catalyst by combustion so that the catalyst can be reused in a hydrocarbon conversion reaction. The completion of coke burn is generally measured with a combination of temperature or change in oxygen concentration. Dropping outlet temperatures require time to wait for increases in inlet temperature to correspondingly move down the regenerator. Faster response times might be expected from increasing oxygen concentration, but a small increase in concentration can lead to a significant increase in peak burn temperature which negatively impacts catalyst life. Controlled peak burning is difficult over the entire bed by merely controlling inlet and outlet oxygen concentrations. The invention accordingly combines a measured lag time for temperature travel with an inlet temperature ramping step to ensure complete coke combustion with high oxygen efficiency, thus providing a rapid regeneration that permits more time for operation at desired reaction conditions.
    • 本发明涉及通过燃烧再生焦化催化剂,使得催化剂可以在烃转化反应中再利用。 焦炭燃烧的完成通常用温度或氧气浓度变化的组合来测量。 出口温度下降需要时间才能等待入口温度的升高,以便相应地向下移动再生器。 氧浓度增加可以预测响应时间更快,但是浓度的小幅度增加可能导致峰值燃烧温度显着增加,从而对催化剂寿命产生负面影响。 通过仅控制入口和出口氧浓度,在整个床上控制峰值燃烧是困难的。 因此,本发明将温度行程的测量滞后时间与入口温度升高步骤相结合,以确保具有高氧效率的完全焦炭燃烧,从而提供快速再生,其允许在所需反应条件下操作更多的时间。
    • 8. 发明申请
    • SIMULATED MOVING BED CHROMATOGRAPHY DEVICE
    • 模拟移动式色谱仪
    • WO2012125313A1
    • 2012-09-20
    • PCT/US2012/027624
    • 2012-03-03
    • YUAN, Leon
    • YUAN, Leon
    • B01D15/18
    • B01D15/1842B01J8/0214B01J8/0278B01J2208/00814B01J2208/00876G01N30/38G01N2030/386
    • Disclosed herein is a simulated moving bed chromatography device comprises a minimum of one stationary pipe with a plurality of inlet/outlet channels, a rotary device next to the stationary pipes, a stationary radial flow segmented vessel communicates with the rotary device, a fluid moving device and a drive means to rotate the rotary device. The counter movement of the stationary phase and the fluid is simulated by rotating the rotary device in the same direction as the circulating fluid flow, and the fluid flows through the flow distribution segments, the stationary phase segments, the outer fluid transfer segments, holes or by passes of the improved partition plates in the flow distribution segments/compartments and outer fluid transfer segments.
    • 本文公开了一种模拟移动床层析装置,其包括具有多个入口/出口通道的至少一个固定管,邻近固定管的旋转装置,固定径向流分段容器与旋转装置连通,流体移动装置 以及用于旋转旋转装置的驱动装置。 通过沿与循环流体流相同的方向旋转旋转装置来模拟固定相和流体的相对运动,并且流体流过流量分配段,固定相段,外部流体传递段,孔或 通过流量分配段/隔室中的改进的隔板和外部流体转移段。