摘要:
Improved capacity structured packing arranged in a section or brick wherein the packing in the base region (L) of the section is configured differently from the structured packing in the bulk region (U) making resistance to gas flow between the packing sheets in the base region (L) less than resistance to gas flow between the sheets in the bulk region (U).
摘要:
The present invention provides a packing material capable of improving the uniformity of liquid distribution and of achieving a preferable gas-liquid contact reaction even in the case that the specific surface area of the packing material is small. Further, the invention improves the performance of air separators by provision of the packing material of the present invention in rectifiers for performing the gas-liquid contact reaction. A plurality of projections (2) are provided on the surface of a thin plate (1), and holes (3) are provided between the projections (2). The transverse extension of the projections (2) is preferably larger than the longitudinal extension thereof, so that descending liquid (4) flows downward while being transversely dispersed at the projections (2). The holes (3) are provided between the projections (2) such that they do not obstruct the transverse dispersion of liquid (4) at the projections (2). Moreover, the holes (3) themselves accelerate the transverse dispersion of liquid (4) or the dispersion of liquid between the front and rear surfaces of the thin plate (1) by the surface tension of the liquid (4). As a result, an excellent uniformity of liquid distribution can be obtained on the surface of the thin plate (1).
摘要:
Der erfindungsgemässe Wärmeübertrager ist als Packungselement für Stoffaustausch- oder Stoffumwandlungs-Verfahren vorgesehen. Dieses Packungselement umfasst eine Mehrzahl von parallel angeordneter Schichten, die längs der Stoffstrom-Hauptrichtung (15) ausgerichtet und durch Körper (1) mit Hohlräumen (17) für ein Wärmeträgermedium gebildet sind. Die wärmeübertragenden Körper (1) weisen jeweils ein Paar von Schalen (1a, 1b) aus einem folienartigen Werkstoff auf. Die Seitenflächen der Schalen sind wellenförmig solcherart profiliert, dass die Wellenkämme (141) gegen die Hauptrichtung (15) geneigt sind und dass sich zwischen benachbarten, sich berührenden Schichten offene und sich kreuzende Strömungskanäle ergeben. Aufgrund einer reliefartigen Profilierung der Schalen (1a, 1b) ergibt sich nebst Wärmeübertragerkanälen (17) auch ein Verteil- sowie ein Sammelkanalsystem (121, 121') für das Wärmeträgermedium. Auf der Innenseite des Schalenpaars ist entlang der Strömungskanäle jeweils eine Vielzahl von Verbindungspunkte herstellbar, welche eine gegen Überdruck des Wärmeträgermediums beständige Verbindung ermöglichen. Vorzugsweise besteht der Werkstoff der Schalen (1a, 1b) aus einer metallischen Legierung, und die Profilierung ist durch Prägung erzeugt.
摘要:
Structured column packing having a fluted surface wherein the flute elevation forms a shelf (15) sufficient to cause downflowing liquid to form a pool (14) on the shelf (15) thereby enabling more efficient countercurrent vapor-liquid mass transfer.
摘要:
Metal vapour-liquid contact plates are disposed in face-to-face contact with respective corrugations inclined to the horizontal across a notional plane. A perforated lamella may be disposed across the notional plane. The metal packing which may also be of slit or louvered construction is disposed within a vapour-liquid contact column for the purpose of bringing about mass and heat transfer between liquid and vapour passing in opposite directions therethrough. The body portion of each plate comprises metal that has been slit to provide both surfaces thereof with a very large number of apertures with little wasted material. The metal lands defining the apertures may be twisted and angulated. The apertures in the plates trap liquid and expose it to the vapour stream on both sides of the plates affording self-spreading of the liquid and turbulent vapour flow therethrough. In this manner, the assembly affords optimal pressure drop characteristics, surface to vapour passage area ration, and vapour-liquid distribution characteristics. The laminate plate formation may also afford select flow and turbulence characteristics through capillary action between offset laminate land areas of the sheets.
摘要:
A catalyst arrangement disposed within a vertical reaction tube includes a structured catalyst within an upper part of the reaction tube, a particulate catalyst beneath the structured catalyst in a lower part of the reaction tube, and a catalyst support device located between the structured catalyst and the particulate catalyst, wherein the catalyst support device includes a cylindrical body having a first end adapted for connection to the structured catalyst, and a second end, and the cylindrical body has a diameter 70-90% of the internal diameter of the tube and a length/diameter in the range 0.5-2.5.
摘要:
The present invention relates to a method of hydrogenating carbon monoxide. The method comprises providing a catalyst, passing a feed stream of carbon monoxide and hydrogen gases through the catalyst and heating the catalyst. The invention provides the ability to hydrogenate carbon monoxide with low contact times, good conversion rates and low methane selectivities. In a preferred method, the catalyst comprises a Fischer-Tropsch catalytic metal.
摘要:
A mixing element manufacturable at low cost, having high mixing and agitating effects, and easily increased in size, a static fluid mixer using the mixing element, and a gas-liquid treatment device having high treating capacity, the mixing element (1) comprising a tubular passage tube (2) for passing fluid therethrough and a clockwise rotating first blade body (3) formed of a plurality of spiral porous bodies installed in the passage tube (2). A tubular first inner cylindrical tube (5) is disposed on the inside of the blade body (3), a plurality of spiral clockwise rotating blade bodies (6) are installed in the inner cylindrical tube (5), and an opening part (9) is formed at the axis part of the blade bodies (6). The static fluid mixer is formed by using at least one of the mixing element (1).
摘要:
The present invention relates to a method of hydrogenating carbon monoxide. The method comprises providing a catalyst, passing a feed stream of carbon monoxide and hydrogen gases through the catalyst and heating the catalyst. The invention provides the ability to hydrogenate carbon monoxide with low contact times, good conversion rates and low methane selectivities. In a preferred method, the catalyst comprises a Fischer-Tropsch catalytic metal.