Exchange column structured packing bed having packing bricks
    21.
    发明授权
    Exchange column structured packing bed having packing bricks 失效
    具有包装砖的交换柱结构填料床

    公开(公告)号:US6089549A

    公开(公告)日:2000-07-18

    申请号:US936878

    申请日:1997-09-25

    摘要: A plurality of structured packing bricks are positioned in a column having a longitudinal axis to form one or more structured packing beds. Each brick is formed from a plurality of corrugated plates disposed in parallel relation and having opposed ends that form end surfaces of the bricks. At least one end surface, and normally both end surfaces, of the bricks are inclined at an angle to the column axis so each brick has an end surface that engages and overlaps the inclined end surface of a horizontally adjacent brick. The inclined end surfaces include openings formed by the plate corrugations and, due to the overlapping positioning of adjacent end surfaces, liquid is able to flow vertically downwardly from openings in one brick end surface into openings in the adjacent brick end surface. These angle end surfaces also disrupt the vertical flow of vapor so that vertical channeling of vapor along the end surfaces is disrupted. The shape of the packing bricks can include trapezoidal and parallelogram.

    摘要翻译: 多个规整填料砖定位在具有纵向轴线的柱中以形成一个或多个规整填料床。 每个砖由平行布置的多个波纹板形成,并且具有形成砖的端面的相对端。 砖的至少一个端面,通常两个端面都倾斜成与柱轴线成一定角度,因此每个砖具有与水平相邻的砖的倾斜端面接合和重叠的端面。 倾斜的端面包括由板波纹形成的开口,并且由于相邻端面的重叠定位,液体能够从一个砖端面中的开口垂直向下流动到相邻砖端面中的开口。 这些角度的端面也破坏了蒸气的垂直流动,使得沿着端面的蒸气的垂直通道被破坏。 包装砖的形状可以包括梯形和平行四边形。

    Vapor liquid contact tray with two-stage downcomer
    22.
    发明授权
    Vapor liquid contact tray with two-stage downcomer 失效
    带两级降液管的蒸气液接触盘

    公开(公告)号:US6076813A

    公开(公告)日:2000-06-20

    申请号:US76481

    申请日:1998-05-12

    CPC分类号: B01D3/16 B01D3/20 B01D3/22

    摘要: A vapor-liquid contact tray (16) is provided with an upstream downcomer (46) and a downstream downcomer (48) which form a two-stage downcomer. The discharge outlet (62) of the upstream downcomer (46) feeds liquid into the downstream downcomer (48) to help seal the discharge outlet (58) of the downstream downcomer (48) against vapor entry at lower liquid flow rates and to allow positioning of the discharge outlet (58) above the height of the weir (66) on the underlying tray (16). Because the upstream downcomer (46) does not discharge liquid directly onto the underlying tray deck (40), the area of the tray deck (40) underlying the upstream downcomer (46) can contain vapor flow apertures (68) to increase the active area and mass transfer efficiency of the tray (16).

    摘要翻译: 气 - 液接触托盘(16)设置有形成两级降液管的上游降液管(46)和下游降液管(48)。 上游降液管(46)的排放出口(62)将液体供应到下游降液管(48)中,以帮助密封下游降液管(48)的排出口(58)以较低的液体流速进入蒸气进入并允许定位 的排气口(58)位于下面的托盘(16)上的堰(66)的高度之上。 由于上游降液管(46)不将液体直接排放到下面的托盘甲板(40)上,所以在上游降液管(46)下方的托盘甲板(40)的区域可以包含蒸气流孔(68),以增加有效面积 和托盘(16)的传质效率。

    Media for heat exchange columns in regenerative thermal oxidizers
    23.
    发明授权
    Media for heat exchange columns in regenerative thermal oxidizers 失效
    再生热氧化剂热交换柱介质

    公开(公告)号:US5755569A

    公开(公告)日:1998-05-26

    申请号:US796422

    申请日:1997-02-06

    摘要: A regenerative thermal oxidizer is provided with a combustion chamber and a plurality of heat transfer columns. Heat transfer media within the columns include solid surfaces which define vapor flow passages. To permit higher volumetric vapor flow rates nearer the combustion chamber, the passages are larger in cross-sectional area and the solid surfaces have less total surface area in those portions of the heat transfer media nearer the combustion chamber than in those portions away from the combustion chamber. The larger cross-sectional area of the passages and reduced area of the solid surfaces decreases the resistance to vapor flow and allows the passages to accommodate the higher volumetric flow rate of the vapor stream passing through the hotter portions of the heat transfer media. The relatively smaller cross-sectional area of the passages and increased area of the solid surfaces in that portion of the heat transfer media located away from the combustion chamber allows for more efficient heat transfer between the media and the vapor stream in those cooler portions of the heat transfer media.

    摘要翻译: 再生热氧化器设置有燃烧室和多个传热塔。 柱内的传热介质包括限定蒸气流通道的固体表面。 为了允许更接近燃烧室的更高的体积蒸汽流速,通道的横截面积较大,并且固体表面在靠近燃烧室的传热介质的那些部分中的那些部分中的总表面面积小于远离燃烧的部分 房间。 通道的较大的横截面积和固体表面的减小面积降低了对蒸汽流的阻力,并且允许通道适应通过传热介质的较热部分的蒸气流的较高体积流量。 通道的相对较小的横截面积和位于远离燃烧室的传热介质部分的固体表面的面积增加允许介质和蒸气流在这些冷却器部分中的更有效的热传递 传热介质。

    Vapor-liquid contact tray and downcomer assembly and method employing
same
    24.
    发明授权
    Vapor-liquid contact tray and downcomer assembly and method employing same 失效
    蒸汽 - 液体接触盘和降液管组件及其使用方法

    公开(公告)号:US5632935A

    公开(公告)日:1997-05-27

    申请号:US580466

    申请日:1995-12-28

    摘要: A vapor-liquid contact tray and downcomer assembly is provided with ramps which serve to impart a horizontal directional flow to the liquid exiting the downcomer and/or the vapor passing through the tray. The downcomer includes a bottom plate which closes the outlet region of the downcomer and includes a plurality of ramps which redirect the downwardly flowing liquid to include a horizontal component in the direction of liquid flow across the underlying tray. The downcomer receiving area in the underlying tray can include valves having floating caps which shield the associated openings in the tray against liquid weeping and redirect the vertical movement of the vapor streams to a generally horizontal momentum.

    摘要翻译: 蒸汽 - 液体接触托盘和降液管组件设置有斜坡,其用于向离开降液管的液体和/或通过托盘的蒸汽赋予水平方向流。 降液管包括底板,其关闭降液管的出口区域并且包括多个斜面,其将向下流动的液体重新定向以包括穿过下面的托盘的液体流动方向的水平分量。 下层托盘中的降液管接收区域可以包括具有浮动盖的阀,其屏蔽托盘中的相关开口以防止液体流淌并将蒸气流的垂直运动重定向到大致水平的动量。

    Method and apparatus for vapor distribution in mass transfer and heat
exchange columns
    25.
    发明授权
    Method and apparatus for vapor distribution in mass transfer and heat exchange columns 失效
    传质和热交换柱蒸汽分布的方法和装置

    公开(公告)号:US5516465A

    公开(公告)日:1996-05-14

    申请号:US195533

    申请日:1994-02-14

    申请人: Neil Yeoman

    发明人: Neil Yeoman

    摘要: A mass transfer or heat exchange column is provided with a vapor distributor having, in one embodiment, a plenum which circulates a vapor stream about the inner periphery of the column. The plenum has a plurality of spaced apart outlet ports which allow portions of the vapor stream to be introduced into the open column interior at a plurality of locations. The vapor streams exiting the plenum have sufficient velocity to cause turbulent mixing of the streams, thereby providing a more uniform distribution of the vapor across the horizontal cross section of the column. The ascending, uniformly distributed vapor is then able to interact more efficiently with liquid in an overlying zone which may include trays or random or structured packing. In another embodiment, the vapor distributor defines a flow channel of decreasing cross-sectional area that is in communication with a generally open bottom of the distributor. The decreasing area of the flow channel forces the vapor stream out the bottom of the distributor in a uniform manner for more even distribution across the horizontal cross section of the column.

    摘要翻译: 在一个实施方案中,质量传递或热交换柱设置有蒸气分配器,蒸气分配器在蒸气流周围循环该柱的内周。 气室具有多个间隔开的出口端口,其允许蒸气流的一部分在多个位置被引入开放的塔内部。 离开集气室的蒸汽流具有足够的速度,以引起气流的湍流混合,从而提供蒸气跨越塔的水平横截面的更均匀的分布。 上升的均匀分布的蒸气然后能够在包括托盘或随机或规整填料的上覆区域中更有效地与液体相互作用。 在另一个实施例中,蒸汽分配器限定了与分配器的大体上敞开的底部连通的横截面积减小的流动通道。 流动通道的减小面积以均匀的方式迫使蒸气流从分配器的底部排出,以便更均匀地分布在塔的水平横截面上。

    Random packing element and method
    26.
    发明授权
    Random packing element and method 失效
    随机包装元素和方法

    公开(公告)号:US5112536A

    公开(公告)日:1992-05-12

    申请号:US668595

    申请日:1991-03-13

    摘要: A saddle-type random packing element for use in a vapor-liquid tower which packing comprises an arcuate body having generally parallel, upright flanges on either side, the arcuate body having a plurality of alternating, generally parallel, inner and outer arched rib elements extending transversely between the flanges. The method of manufacture of the packing element comprises slitting a flat metal sheet to form rib elements, bending the sheet to form the upright flanges, the arched rib elements and then into the arcuate shape of the packing.

    摘要翻译: 一种用于气液塔的鞍型无规填料元件,该填料包括一个弓形体,其在任一侧均具有大致平行的直立凸缘,该弧形体具有多个交替的,大致平行的内外拱形肋元件, 横向在法兰之间。 制造包装元件的方法包括切割扁平金属片以形成肋元件,弯曲片材以形成直立法兰,拱形肋元件,然后成为包装的弓形形状。

    Process for the production of methyl formate
    27.
    发明授权
    Process for the production of methyl formate 失效
    甲酸甲酯生产方法

    公开(公告)号:US4661624A

    公开(公告)日:1987-04-28

    申请号:US639772

    申请日:1984-08-13

    IPC分类号: C07C67/36

    CPC分类号: C07C67/36

    摘要: A process for the production of alkyl formates such as methyl formate from the reaction of a carbon monoxide containing gas and an alkyl alcohol, such as methanol, is disclosed. The process features low conversions of alkyl alcohol to alkyl formate, high catalyst concentrations, higher reaction zone temperatures, improved process thermal efficiencies, and reduced apparatus requirements.

    摘要翻译: 公开了从含一氧化碳的气体和烷基醇如甲醇的反应制备甲酸甲酯等甲酸甲酯的方法。 该方法具有烷基醇到甲酸烷基酯的低转化率,高催化剂浓度,更高的反应区温度,改进的工艺热效率和减少的装置要求。