Investigation of flow parameters and efficiency of mixture separation on a structured packing
Results of experimental study of the effect of initial maldistribution of structured packing irrigation on efficiency of binary mixture separation are presented in this article. The studies were carried out in the experimental distillation column with the diameter of 0.9 m using the R114 and R21 fre...
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| Veröffentlicht in: | AIChE journal 2014-02, Vol.60 (2), p.690-705 |
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| creator | Pavlenko, Аleksandr Zhukov, Vladimir Pecherkin, Nikolay Chekhovich, Vladimir Volodin, Oleg Shilkin, Alexey Grossmann, Christoph |
| description | Results of experimental study of the effect of initial maldistribution of structured packing irrigation on efficiency of binary mixture separation are presented in this article. The studies were carried out in the experimental distillation column with the diameter of 0.9 m using the R114 and R21 freon mixture. Experiments were performed on the structured Mellapak 350.Y packing of stainless steel 316L, containing 19 layers with the total height of 4.016 m at the ratio of mole liquid and vapor flow rates L/V = 1 and 1.7, respectively, and the pressure in the upper part of the column ptop = 3 bars. Nonuniformity at the packing inlet was generated via the blocking of some holes in the liquid distributor. Here, we present some results on efficiency of mixture separation, pressure drop on the packing, distribution of local liquid flow rate under the packing over the cross‐section and on the column wall within the range of vapor loading factor (0.69 |
| doi_str_mv | 10.1002/aic.14298 |
| format | Article |
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The studies were carried out in the experimental distillation column with the diameter of 0.9 m using the R114 and R21 freon mixture. Experiments were performed on the structured Mellapak 350.Y packing of stainless steel 316L, containing 19 layers with the total height of 4.016 m at the ratio of mole liquid and vapor flow rates L/V = 1 and 1.7, respectively, and the pressure in the upper part of the column ptop = 3 bars. Nonuniformity at the packing inlet was generated via the blocking of some holes in the liquid distributor. Here, we present some results on efficiency of mixture separation, pressure drop on the packing, distribution of local liquid flow rate under the packing over the cross‐section and on the column wall within the range of vapor loading factor (0.69 < Fv < 1.61 Pa0.5), as well as experimental data on distribution of local concentration of the low‐boiling component over the cross‐section and along the height of the structured packing. It is found out that significant maldistribution of mixture concentration and liquid flow rate over the cross‐section slightly changes along the height in the lower part of the column at a change in the degree of packing irrigation nonuniformity at the inlet. It is shown that efficiency of mixture separation depends considerably on the value of parameter L/V, vapor flow factor Fv, and size of the zone underirrigated by liquid at the inlet. In the studied range of liquid and vapor flow rates, the relative pressure drop on the packing does not depend on the ratio of liquid and vapor flow rates L/V and degree of irrigation maldistribution. © 2013 American Institute of Chemical Engineers AIChE J 60: 690–705, 2014</description><identifier>ISSN: 0001-1541</identifier><identifier>EISSN: 1547-5905</identifier><identifier>DOI: 10.1002/aic.14298</identifier><identifier>CODEN: AICEAC</identifier><language>eng</language><publisher>New York: Blackwell Publishing Ltd</publisher><subject>Austenitic stainless steels ; Column packings ; Columns (structural) ; Cross sections ; distillation column ; efficiency of mixture separation ; Flow rate ; Fluid mechanics ; Heat resistant steels ; Inlets ; Irrigation ; Liquids ; maldistribution ; nonuniform liquid irrigation ; Pressure ; Separation ; Stainless steel ; structured packing</subject><ispartof>AIChE journal, 2014-02, Vol.60 (2), p.690-705</ispartof><rights>2013 American Institute of Chemical Engineers</rights><rights>Copyright American Institute of Chemical Engineers Feb 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4388-aad613913e23b251417990858f2a2ca25d5c45dd4a58704bbd102d7e8431ed13</citedby><cites>FETCH-LOGICAL-c4388-aad613913e23b251417990858f2a2ca25d5c45dd4a58704bbd102d7e8431ed13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Faic.14298$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Faic.14298$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27922,27923,45572,45573</link.rule.ids></links><search><creatorcontrib>Pavlenko, Аleksandr</creatorcontrib><creatorcontrib>Zhukov, Vladimir</creatorcontrib><creatorcontrib>Pecherkin, Nikolay</creatorcontrib><creatorcontrib>Chekhovich, Vladimir</creatorcontrib><creatorcontrib>Volodin, Oleg</creatorcontrib><creatorcontrib>Shilkin, Alexey</creatorcontrib><creatorcontrib>Grossmann, Christoph</creatorcontrib><title>Investigation of flow parameters and efficiency of mixture separation on a structured packing</title><title>AIChE journal</title><addtitle>AIChE J</addtitle><description>Results of experimental study of the effect of initial maldistribution of structured packing irrigation on efficiency of binary mixture separation are presented in this article. The studies were carried out in the experimental distillation column with the diameter of 0.9 m using the R114 and R21 freon mixture. Experiments were performed on the structured Mellapak 350.Y packing of stainless steel 316L, containing 19 layers with the total height of 4.016 m at the ratio of mole liquid and vapor flow rates L/V = 1 and 1.7, respectively, and the pressure in the upper part of the column ptop = 3 bars. Nonuniformity at the packing inlet was generated via the blocking of some holes in the liquid distributor. Here, we present some results on efficiency of mixture separation, pressure drop on the packing, distribution of local liquid flow rate under the packing over the cross‐section and on the column wall within the range of vapor loading factor (0.69 < Fv < 1.61 Pa0.5), as well as experimental data on distribution of local concentration of the low‐boiling component over the cross‐section and along the height of the structured packing. It is found out that significant maldistribution of mixture concentration and liquid flow rate over the cross‐section slightly changes along the height in the lower part of the column at a change in the degree of packing irrigation nonuniformity at the inlet. It is shown that efficiency of mixture separation depends considerably on the value of parameter L/V, vapor flow factor Fv, and size of the zone underirrigated by liquid at the inlet. In the studied range of liquid and vapor flow rates, the relative pressure drop on the packing does not depend on the ratio of liquid and vapor flow rates L/V and degree of irrigation maldistribution. © 2013 American Institute of Chemical Engineers AIChE J 60: 690–705, 2014</description><subject>Austenitic stainless steels</subject><subject>Column packings</subject><subject>Columns (structural)</subject><subject>Cross sections</subject><subject>distillation column</subject><subject>efficiency of mixture separation</subject><subject>Flow rate</subject><subject>Fluid mechanics</subject><subject>Heat resistant steels</subject><subject>Inlets</subject><subject>Irrigation</subject><subject>Liquids</subject><subject>maldistribution</subject><subject>nonuniform liquid irrigation</subject><subject>Pressure</subject><subject>Separation</subject><subject>Stainless steel</subject><subject>structured packing</subject><issn>0001-1541</issn><issn>1547-5905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkU1LxDAQhoMouK4e_AcFL3qoZvLRpkdZXF0QBV0QBAnZJJVot12TVt1_b2rVgyCeQjLPE2bmRWgf8DFgTE6U08fASCE20Ag4y1NeYL6JRhhjSOMDbKOdEJ7ijeSCjNDDrH61oXWPqnVNnTRlUlbNW7JSXi1ta31IVG0SW5ZOO1vrdU8s3XvbeZsE22ODVycqCa3vdF8x0dfPrn7cRVulqoLd-zrHaD49m08u0svr89nk9DLVjAqRKmUyoAVQS-iCcGCQFwUWXJREEa0IN1wzbgxTXOSYLRYGMDG5FYyCNUDH6HD4duWbly6OI5cuaFtVqrZNFyRkBaEUc5b9j3IKGERR9OjBL_Sp6Xwd55DA4vIozmIDY3Q0UNo3IXhbypV3S-XXErDsI5ExEvkZSWRPBvbNVXb9NyhPZ5NvIx0MF1r7_mMo_yyznOZc3l2dy9ur6c38XoAU9APHSJte</recordid><startdate>201402</startdate><enddate>201402</enddate><creator>Pavlenko, Аleksandr</creator><creator>Zhukov, Vladimir</creator><creator>Pecherkin, Nikolay</creator><creator>Chekhovich, Vladimir</creator><creator>Volodin, Oleg</creator><creator>Shilkin, Alexey</creator><creator>Grossmann, Christoph</creator><general>Blackwell Publishing Ltd</general><general>American Institute of Chemical Engineers</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7U5</scope><scope>8FD</scope><scope>C1K</scope><scope>L7M</scope><scope>SOI</scope><scope>7QH</scope><scope>7UA</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>201402</creationdate><title>Investigation of flow parameters and efficiency of mixture separation on a structured packing</title><author>Pavlenko, Аleksandr ; 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The studies were carried out in the experimental distillation column with the diameter of 0.9 m using the R114 and R21 freon mixture. Experiments were performed on the structured Mellapak 350.Y packing of stainless steel 316L, containing 19 layers with the total height of 4.016 m at the ratio of mole liquid and vapor flow rates L/V = 1 and 1.7, respectively, and the pressure in the upper part of the column ptop = 3 bars. Nonuniformity at the packing inlet was generated via the blocking of some holes in the liquid distributor. Here, we present some results on efficiency of mixture separation, pressure drop on the packing, distribution of local liquid flow rate under the packing over the cross‐section and on the column wall within the range of vapor loading factor (0.69 < Fv < 1.61 Pa0.5), as well as experimental data on distribution of local concentration of the low‐boiling component over the cross‐section and along the height of the structured packing. It is found out that significant maldistribution of mixture concentration and liquid flow rate over the cross‐section slightly changes along the height in the lower part of the column at a change in the degree of packing irrigation nonuniformity at the inlet. It is shown that efficiency of mixture separation depends considerably on the value of parameter L/V, vapor flow factor Fv, and size of the zone underirrigated by liquid at the inlet. In the studied range of liquid and vapor flow rates, the relative pressure drop on the packing does not depend on the ratio of liquid and vapor flow rates L/V and degree of irrigation maldistribution. © 2013 American Institute of Chemical Engineers AIChE J 60: 690–705, 2014</abstract><cop>New York</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/aic.14298</doi><tpages>16</tpages></addata></record> |
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| subjects | Austenitic stainless steels Column packings Columns (structural) Cross sections distillation column efficiency of mixture separation Flow rate Fluid mechanics Heat resistant steels Inlets Irrigation Liquids maldistribution nonuniform liquid irrigation Pressure Separation Stainless steel structured packing |
| title | Investigation of flow parameters and efficiency of mixture separation on a structured packing |
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