• 2022-07-02
    在[tex=2.143x1.071]WNmyGTOwyAAsBErM4hQr4ZHJgT4/5sx8KJjQM8F82nY=[/tex]、[tex=4.0x1.0]5P291xuSIybmQhGqRLPeIiVshE0WsW04YDMvBjWyk/w=[/tex]下用大量的硫酸逆流吸收空气中的水汽。入塔空气中含水汽摩尔分数为[tex=2.786x1.0]Jqj7ETw33uDOzp2ehmSaDg==[/tex], 硫酸进、出塔的摩尔分数均为[tex=1.857x1.143]qADgiIcVnPkxJedk0gUcMw==[/tex], 硫酸溶液上方的平衡水汽摩尔分数 [tex=6.571x1.429]3S8iQYkSA5uIVCfVDp8jhNxagedR4Lq4gWorxSh9ZoFj6wU0VlhGHjcVf4dGUKwy[/tex], 且已知该塔的容积传质系数[tex=4.786x1.5]2yzOMRwSzdam9KmgoVH97vEn9hqEJLyICBNjNeAt7Uk=[/tex]。空气经塔后被干燥至含水汽摩尔分数[tex=3.786x1.0]EN7ZqV53elaVKEoJRFN7Dw==[/tex]。现将空气流率增加一倍, 则出塔空气中的含水量为多少?
  • 解: 已知: [tex=5.429x1.0]Rm6ROJxFcyhzAN8cJq59eUq98J9dIij7UnNHW/IQTtk=[/tex], [tex=3.286x1.071]JCq+6r/noysx+ep88z7tOyF7FY6xRLql8fdV7qYzIPAEJj8jLUi9n+Tgp2rJaXY+[/tex], [tex=5.0x1.286]P0kUUciIcFppxAKm4ID+mOKAJvsQ7AhEURWvnFWAgpc=[/tex], [tex=3.0x1.214]435r7KRhLXeCskTC7aLiL/G+vCEFxHOOnMker6xDcB8=[/tex], [tex=7.143x1.5]ZDNIYRcKFE4+JTYDqvWkCqqmM6O+/eyoEmPqPtB6izSkkBdD3zckW0PQCaVKA3ta[/tex], [tex=5.5x1.286]KSxHxucAG2eb0gycBrkHlGJ/RIoh2YDzEACxkRec2+s=[/tex],[tex=4.714x1.5]3xQMuPhF0GGEYFjBBuxK4ehSx2bggrFxwVym0oiJ58khCxIHgv+ZiwKwLRTHh7oW/6rqMiYkCdo+YLe4g/ZPxQ==[/tex],[tex=3.571x1.071]Bv0GnMUlY2hZuZRBHO3D0xENSGWvZ49kbgC44epa3OA=[/tex]求: [tex=3.143x1.143]hB9gLav7ZcfbUqt1hVYW468+OkdcBqgdxH7a4vwODCM=[/tex]时, [tex=1.071x1.429]Dfg/bneKja/Uw7z7Y/qI9w==[/tex],[tex=3.071x1.071]eQvQWDmNIXOIdYDij7zsgg==[/tex],  [tex=7.357x2.643]alxQlkLpVe7Y2n2DzfEhIMyz52SDGkFGXRCTJhLEdV1zZr6w72s/Aytj6ytFL8yL3uZm4mgZdIcqBptR5glPcQ==[/tex][tex=1.643x1.0]7H1xrUEBXdOd+1BcJx0zdAUYoOVhZ/eZS+WS1QfPHdA=[/tex]常数, [tex=27.857x2.857]JOdNjX2vDkHRjs5AdcMf/u4f5f8XR7pKdDGwJRbHhydfiO+glL5sK3ahSiAW9nebY/QlvTOhE28u76vtbg0YQaDrtIvIJZFYkhwqaJFudVfdieiEwX0vxWg/WQZNsMzG1I3TiCHu57/VQ8SP2QG/icFAu9+IqRXHAoDo1nXN98yl59Z8bnvnDl9LwckTvJ4mosyHsifxKkhQCCkubTQiVGHmeJXVroWhl8RF6I8j68L00TBkfs8nUhxxAap0CK21usGtLOoKItA9ocIST06bEA==[/tex]当流率增加一倍时[tex=11.429x4.5]UD5Uh4Sf0JOreHxD3gt15iy1X8R38PDsCCMa9eIx3dn3JUXcrNDqSWrHazcrBt+M9CHisKZSwLUunCRAY7DXfQ3948Nc3fCkJUWXI0V4YkiuZ7yfAT/RBQQ5EvzqejnKbDLnrym2dYtDUqfUpFZ7n/m1hQUH0lMZJGPdkDRhcP30bkcxYA1wkTlaK9VG9E4ltAlPmyn7Hgmy5yXxarGY1pIMcH3DxGxzk2Mtmr1RKSWR3krOVBHkY0mUGLl+YE/j/ybZqZ+6xBgQlHTGuI4YcfFPea7R9ss8xTlGKiDpzuS9J/xaiSfwzc0H0r3tnaEW[/tex][tex=0.714x1.0]8pPdsbovtYgchyfJXS6UMg==[/tex]塔高不变, 则[tex=17.143x4.643]UD5Uh4Sf0JOreHxD3gt15hpnBPzODOU1x58Yr7gIBgizr+AS5WI+CjmYtbBCR8XXHXSMuqtBvRNoyZfb+UQP8uPVp0HZ1cH32OXGIdH+ZR7hFhMfPIw4GPocjS1tFVrQ4peP36MaQqKa4bTZJGUCDjzkWb80y//7juiwFFuY79TNJuca0zLvKvraVvKTCnQ6bSBhn993GEMpJ8ZtptR50omKvBRxMADPUdLOc4mWNwgHRFsk9mbAhzGJtKDcB+uDess8PQuuojl7vTvmjNsv0HC5wsIgTBA52xyVwzbV6rcVChN9f4w5DB4WMm5o3rB5WOf08C7EDsfF9efIA5oD7LyK/89tvSOln1B5WvPSSNad2eXcxIztVEbhfFvFEDmFCypAr4/o8eaV2cLKfJwfKw==[/tex][tex=13.286x2.786]obsm0noCPeNjXK+naAYA6mN8HJ2Ib761a1P2u6NuBoa1ApX30PtqaudHXxr14TWxGXSEvVoUXxB+AIjR3sjHaE4FTwkO6SDYGMMTcygs1v7BY07LmQztsgIcgbGAAZcG[/tex]解得[tex=6.286x1.429]2aXFou0M9pZ12vNMZVpMn1tO/QuBQKRJuNIxhoPZGbF64UUsuUtYkCZsb0xWQTD0[/tex][br][/br]
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    举一反三

    内容

    • 0

      流率为[tex=7.214x1.5]D8lVd90dX5GnJGTMjm7UihHL265ZqoZwZZrgGrmORJRJ1bR/DKi0Q2qONeIkwFsyTu6Yc4c7PIYAnXbErzL7Xw==[/tex]的空气混合气中含氨体积分数为[tex=1.357x1.143]Echp/4V2DGvOKt+oOcF2uQ==[/tex], 拟用逆流吸收以回收其中[tex=1.857x1.143]sbGJwUcEz4//3QlU/contQ==[/tex]的氨。塔顶淋入摩尔分数为 [tex=2.786x1.0]hOzWee09Plc/8SbZ4wUX5w==[/tex]的稀氨水溶液, 设计采用的液气比为最小液气比的[tex=1.286x1.0]i/VcY7by/UxU03MsbHMszg==[/tex]倍, 操作范围内物系服从亨利定律[tex=3.143x1.214]b+ejfErlBbMIMAGv/QXNlzOcZPC3ULrbIwKJ63MCU9M=[/tex], 所用填料的总传质系数 [tex=10.357x1.571]3xQMuPhF0GGEYFjBBuxK4ehSx2bggrFxwVym0oiJ58n9rTFLLZktioGiLjFqdSCCn3Jzdb2qVrn55ZPQB5pDcTCvqqY1KlHEBLd3cB2kmP6Cp8w2AaFl52hfdXzXU/eppOSueG0qa3sgqshymdkSjw==[/tex]。试求: (1) 液体在塔底的摩尔分数 [tex=0.929x1.0]UangLaw64tpCHXAHdnwmX9ZcMLAeHpTpPdKKOnpU2I4=[/tex]; (2)全塔的平均推动力[tex=2.0x1.286]nk/HsiB/tNvXK3x3L6Nf3TA1BpTZOyAgmrWeqgyMtpWMOcqgWXcxHhXv8nbjqwMe[/tex]; (3) 所需塔高。

    • 1

      在去湿设备中,将空气中的部分水汽除去,操作压力为[tex=4.0x1.0]9x1RhwuEtafC4FbeKbgBVA==[/tex],空气进口温度为[tex=2.143x1.071]dnnbW2Co1Lh4w4pj2rL/iw==[/tex],空气中水汽分压为[tex=3.429x1.286]7pb+NwAju7nDcBiNA1xE+w==[/tex]出口处水汽分压为[tex=3.5x1.0]YhJnlS+sVz7kocplnaxXcA==[/tex]。试计算[tex=2.786x1.214]LSPtIZg3u3FFAVUM7kn4xw==[/tex]湿空气所除去的水分量。

    • 2

      欲用填料塔以清水逆流吸收混合气体中有害组分[tex=0.786x1.0]Yn3GgEZev6SOu2r4v1WnCw==[/tex]。已知入塔气中[tex=0.786x1.0]Yn3GgEZev6SOu2r4v1WnCw==[/tex]组分[tex=4.571x1.429]ngK2QLWyoYBrvIEJLohMQpIlo3K3hnuxESManmcuFgY=[/tex](摩尔分数,下同),要求回收率为[tex=1.857x1.143]6ct+iwoR4UNC8as2/Ebayw==[/tex]。相平衡关系[tex=8.571x1.214]A/CDnFyzlPiLaXqy3By/ebCogkPcBieRrnTSxcdJ0oQrrd+6K2dHkOWXM5cHw3RJNeChILa711DPyCusuAWtjiRrFr0NcOsNRxrKLvWFTGw=[/tex]。采用液气比为最小液气比的1.5倍。试求:(1)出塔液体浓度;(2)填料层高度;(3)现改用板式塔,需要多少块理论板?

    • 3

      含[tex=3.214x1.286]59twWWuuAyAuwVOADMZ+WBOi3yaJBuytr0nsTmy21uQ=[/tex] (体积分数)的 [tex=1.857x1.214]59twWWuuAyAuwVOADMZ+WAf4VqA8QYHWXpgPIclnhiQ=[/tex]-空气混合气, 在填料塔中用水进行逆流吸收, 操作压力(绝)为[tex=3.214x1.0]b2MDm8OhLxNeML6ktEd6amsGyWNgSI3dmxuSjWLZeMg=[/tex] 、温度为[tex=2.143x1.071]zt6AQy0PfYUwQvPHkX7UEseOE1BESdkAuAIivrvToWY=[/tex], 试求出塔的 [tex=2.0x1.214]s3SpHImkN89g3m0RxY2oZw9LC4sodaGKNri8PMH92ig=[/tex] 水中最多可溶解多少克[tex=1.857x1.214]59twWWuuAyAuwVOADMZ+WAf4VqA8QYHWXpgPIclnhiQ=[/tex] ? 其浓度又为多少?

    • 4

      在[tex=4.5x1.0]RtLDQlbaqtd5NsGbvhapmw==[/tex]下用水吸收混于空气中的氨。已知氨的摩尔分数为[tex=1.571x1.214]SVxW/Uuopi18D46hQcwDVQ==[/tex] 混合气体于 [tex=2.143x1.071]enMhhKxVMnbDte6fpNcIsA==[/tex]下进入塔底, 体积流量为 [tex=4.571x1.5]J7dgndAuuesfg6ppyk4CXDsa3VWn03FFOx1JsXLvJi8=[/tex], 空塔气速为[tex=3.143x1.357]g3Lx67rmQjQ/5yjVW2fyVw==[/tex] 。吸收剂用量为理论最小用量的[tex=1.286x1.0]evYsXqbsixd1/3ehcWuENQ==[/tex]倍, 氨的吸收率为[tex=1.857x1.143]sbGJwUcEz4//3QlU/contQ==[/tex], 且已估算 出塔内气相体积吸收总系数[tex=1.786x1.214]uY0Af4qYjLLuaeefetMl1Q==[/tex]的平均值为 [tex=8.071x1.571]3WVRTuGIQaRBVIxd+D99YrT8Z9mPvi8IiSHjSPkZUsjGHX1QU+yEuHab3J0CwlUW[/tex]。在操作条件下的气液平衡关系为 [tex=4.643x1.071]a6u54ur+F80x1y5yi0NouA==[/tex], 试求塔径。[br][/br][br][/br]