REGENERATION OF TREATER FOR RECYCLE STREAM OF POLYOLEFIN PRODUCTION PROCESS

• Main Authors: PAGE STEVE E, ROMIG RALPH, MCELVAIN ROBERT R
• Format: Patent
• Language: Chinese; English
• Published: 06.02.2018
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

Disclosed are embodiments of a method of regenerating a desiccant in an off-line treater of a polyolefin production process. The method may include a heating phase followed by a cooling phase. The heating phase may involve use of a regenerating gas made from heating a treated a recycle stream of the polyolefin production process to regenerate desiccant in an off-line treater. The cooling phase mayinvolve thermosyphoning the regenerating gas, nitrogen, an olefin-free diluent, or combinations thereof in a closed-convection loop of the off-line treater. 公开种使聚烯烃生产工艺的离线处理器中的干燥剂再生的方法的实施例。所述方法可以包括加热阶段，随后是冷却阶段。所述加热阶段可以涉及使用由加热所述聚烯烃生产工艺的经过处理的再循环流制得的再生气体，以使离线处理器中的干燥剂再生。所述冷却阶段可以涉及在所述离线处理器的闭合对流环路中热虹吸所述再生气体、氮气、无烯烃稀释剂或其组合。