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1. 发明申请

WO2009094103A1 REFLUX CONDENSER 审中-公开
标题翻译： REFLUX冷凝器
公开(公告)号：WO2009094103A1
公开(公告)日：2009-07-30
申请号：PCT/US2009/000121
申请日：2009-01-09
申请人： DOW TECHNOLOGY INVESTMENTS LLC , RHODES, Clyde, L. , SZUL, John, F. , CONNEWAY, Fred, A.
发明人： RHODES, Clyde, L. , SZUL, John, F. , CONNEWAY, Fred, A.
IPC分类号： B01D3/04 , B01D5/00 , C07D301/32 , B01J19/24
CPC分类号： B01D5/0063 , B01D3/04 , B01D5/0012 , C07D301/32
摘要： Methods, apparatus, and processes are provided for a condenser including flowing a vapor stream including formaldehyde into a tube bundle in a vertical upflow reflux condenser, where a tube in the tube bundle has a length to outside diameter ratio of greater than about 170:1, flowing a cooling fluid on a shell-side of the vertical upflow reflux condenser to condense at least a portion of the vapor stream, where the condensed portion of the vapor stream forms a wetted tube internal surface area on each tube in the generally upright tube bundle; and maintaining the vapor stream velocity at a rate that provides a liquid residence time where formaldehyde condensed on the wetted internal surface area of each tube can react with water to form methylene glycol, removing at least sixty percent (60%) of formaldehyde from the vapor stream fed to the condenser.
摘要翻译：提供了用于冷凝器的方法，装置和方法，包括将包括甲醛的蒸气流在垂直向上流动的回流冷凝器中的管束中流动，其中管束中的管的长度与外径之比大于约170:1 使冷却流体在垂直上流回流冷凝器的壳侧流动，以冷凝蒸汽流的至少一部分，其中蒸汽流的冷凝部分在大体直立管中的每个管上形成润湿的管内表面区域束; 并且以提供液体停留时间的速率保持蒸汽流速度，其中在每个管的润湿内表面区域上凝结的甲醛可与水反应形成亚甲基二醇，从蒸气中除去至少60％（60％）的甲醛流送到冷凝器。

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