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Structured Packings for Distillation, Absorption and Reactive Distillation

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Structured Packings for Distillation, Absorption and Reactive Distillation Sulzer Chemtech Structured Packings for Distillation, Absorption and Reactive Distillation 0699 2501 Structured packings for separation and reactive distillation This brochure was reviewed and - Internals for Packed Columns Sulcol Design Program supplemented recently. It therefore The brochure contains a compre- A program that enables users provides a complete, up-to-date hensive summary of the selection to carry out hydraulic design of overview of packings available of internals supplied by Sulzer columns featuring every type of from Sulzer Chemtech. Chemtech, and a description of packing Sulzer Chemtech offers. Also included is a summary cove- the most important features of The program is based on our ex- ring the essential column internals the distributor technology. perience with several thousand and our technical services. industrial columns and from ex- perimental data measured in our For further information and to down‑ - Gas Processing own test column with a diameter of load our brochures as well as - Chemical Processing Industry 1 m. design tools, please refer to - Process Technology and www.sulzerchemtech.com Equipment for Oil Refineries Considering the broad selection and Crude Oil Production of products and widely proven More detailed product information, Three brochures which illustrate application know-how, Sulzer you will find in the following the wide spectrum of application Chemtech is in a position to offer brochures: of structured packings. the suitable solution even for the most difficult separation tasks. Contents Structured packings • Overview 4‑5 • Laboratory packings 6 • Rombopak 7 • Mellapak® 8‑10+15 • MellapakPlus® 11-12 • Gauze packings 13‑14+16 • Mellacarbon® 17 • Mellagrid® 18 • Katapak®‑SP 19 Internals and erection • Distributors 20 • Collectors 21 • Support grids 22 • Revamping 23 • Installation 24 • Sulzer columns 25 Test facilities • Distributor test facility 26 • Pilot plants 26 Column design 0693 2504-14 • Formula notation 27 2 50 years of experience in mass transfer technology Sulzer Chemtech has been active as equipment supplier to the chemical test data gathered in our process industry since the nineteen fourties. In the early days the engineering engineering laboratory as well as design was completely dependent on the specification provided by experience gained in numerous customers. At the end of the fifties Sulzer was ready to offer its own industrial applications, we are able solutions to specific chemical process engineering problems.These early to offer the best possible solution activities laid the corner stone for sustained innovation by establishing an for your application requirements. in-house development group and a well equipped pilot facility. Column Internals Gauze packings With the concept of advanced The invention of the gauze packings for natural gas drying. In compa‑ internals, Sulzer Chemtech has BX and CY in the early sixties rison to conventional technology, defined the standard for gas resulted in a decisive breakthrough Mellapak offers substantial benefits and liquid distribution in packed in distillation technology. The special in many process applications. columns. Distributors are available advantages of these packings During the past 4 0 years, thousands for a wide range of applications allowed difficult separation tasks of columns, originally equipped with and operating conditions. to be accomplished for the very trays or random packings, have first time, and thermally sensitive been revamped with Mellapak in substances to be separated by order to improve yield or purity or to means of distillation. increase capacity. Due to extensive 0603 2516 0678 2057 Mellapak 0693 2505 A further milestone was the deve- lopment of the structured packings MellapakPlus Mellapak in the seventies. Originally • MellapakPlus represents the conceived to cover the moderate novel, high capacity structured vacuum range up to atmospheric packing (typically 25 to 30 % pressure, Mellapak opened up new more capacity compared with and unforeseen perspectives in all conventional structured packing) areas of thermal mass transfer. • MellapakPlus offers significantly lower pressure drop Applications The eighties were marked by the • MellapakPlus offers a wide widening of the application range range of technical and of Mellapak in the petrochemical, commercial advantages oil and gas industries as well as • MellapakPlus can be used from in exhaust air cleaning and in the low vacuum up to high pressure strippping of volatile constituents applications from wastewater. Typical examples • Everything one already knows are vacuum towers in refineries and about Mellapak remains valid for high-pressure absorption columns 4588 3003 MellapakPlus 3 Structured packings from Sulzer Chemtech Type of packing Material Mellapak 64.X/64.Y Mellapak 500.X/500.Y Stainless steels Mellapak125.X/125.Y Mellapak 750.Y Carbon steel Mellapak170.X/170.Y Further types on request Hastelloy, monel, aluminum, copper-bronze, Mellapak 2 X/2 Y brass, titanium, nickel Mellapak 250.X/250.Y Other materials available on request Mellapak 350.Y MellapakPlus 202.Y Further types on request Stainless steels MellapakPlus 252.Y Carbon steel MellapakPlus 352.Y Hastelloy, monel, aluminum, copper-bronze, MellapakPlus 452.Y brass, titanium, nickel, MellapakPlus 602Y Other materials available on request MellapakPlus 752.Y Mellapak 125.X/Y PP, PVC‑C, PVDF, Teflon® PFA, Mellapak 250.X/Y PEEK from plastics MellapakPlus 252.Y from plastics Mellagrid 40.Y Stainless steels Mellagrid 64.X Carbon steel Mellagrid 64.Y Other materials available on request Mellagrid 90.X BX gauze packing Stainless steels BXPlus gauze packing Copper-bronze, monel, hastelloy, nickel, CY gauze packing titanium Other materials available on request BX gauze packing Gauze ‑ made of polypropylene/polyacrylonitrile from plastics mixture (PP/PAN) Mellacarbon 125.Y Carbon (CFC) Mellacarbon 250.Y Mellacarbon 350.Y Mellacarbon 500.Y Rombopak S4M Further types on request Stainless steel, carbon steel, Hastelloy, Rombopak 9M copper, aluminium, titan, niobium Rombopak 6M Rombopak 12M laboratory packing CrNiMo steel DX laboratory packing Alloy C22 EX laboratory packing Carbon (CFC) DXM, DYM laboratory packing made from sheet metal Katapak‑SP 11 Stainless steels Katapak‑SP 12 Other steels available on request Katapak‑SP 13 4 Applications Diameter and operation range Characteristics Basic chemicals and petrochemicals, From 80 mm up to 17 m Universal packing type, suitable for a wide ethylbenzene/styrene, fatty acids, (depending on type) range of applications tall oil, cyclohexanone/‑ol, caprolactam, Vacuum to high pressure Low to very high liquid loads refinery operations, Liquid load 0.2 to more than absorption/desorption columns, 200 m3/m2h natural gas drying Basic chemicals and petrochemicals, From 80 mm up to 12 m Universal packing type ethylbenzene/styrene, fatty acids, (depending on type) Boosts useful capacity tall oil, cyclohexanone/‑ol, caprolactam, Vacuum to high pressure refinery operations, Liquid load 0.2 to more than absorption/desorption columns, 200 m3/m2h natural gas drying Absorption/desorption columns From 200 mm up to 15 m Resistant to many chemicals (depending on type) Small pressure drop Vacuum to high pressure Temperature: PP Separation efficience similar to Mellapak max. 110 oC, made from metal PVDF max. 150 oC Refineries and petrochemical industry Minimum diameter 900 mm Robust construction Crude oil distillation Vacuum to high pressure Smooth surface Quench columns No blockage, not sensitive to fouling Excellent flow stabiliser Efficient de‑entrainment device Fine chemicals From 40 mm up to 6 m (depending on type) High separation efficiency, even at small liquid loads Isomers Pressure 1 mbar to atmospheric pressure, Low pressure drop, Small hold‑up Fragrances optimum: 1-100 mbar BXPlus: Same efficiency as BX, lower pressure drop Flavours From 100 mm up to 4 m (depending on Self-wetting, even with aqueous solutions Low liquid loads with aqueous solutions material) Large number of transfer units per meter, Pressure 1 mbar to moderate pressure even with small liquid loads Temperature max. 80 oC Low pressure drop Hydrofluoric acid, carboxylic acid, From 30 mm High separation performance caustic solutions Vacuum to moderate pressure Best chemical resistance and Temperatures up to more thermal stability than 400 oC Low pressure drop Pharmaceutical and fine chemicals From 28 mm up to 4 m Grid structure: Surface divided in a large number of Alcohols, esters, fatty acids and derivatives Vacuum to moderate pressure streamlined lamellas Flagrancies and flavours Unique distribution effect for the liquid and good Solvent recovery distribution of vapor flow Fouling services Constant separation performance independent of Pilot plants vapor load Laboratory and pilot columns DX, DXM, DYM 30‑125 mm, Smallest hydraulic diameter EX 20‑85 mm EX, DX: Very high number of theoretical Vacuum to atmospheric pressure stages per meter, low pressure drop DXM, DYM: Constant HETP over the whole F factor range Acetates, methyl acetate hydrolysis, From 50 mm Packing for reactive distillation and fatty acid esters Vacuum to moderate pressure trickle-bed reactors Acetals High separation efficiency and high MTBE, ETBE, TAME reaction capacity Modular concept 5 Laboratory packing Highest number of theoretical stages per unit height separation efficiency 0.1 0.08 0.06 m / HETP 0.04 0691 2532-2 0.02 Standard structured packings are hardly suitable for 0 use in laboratory columns of less than 50
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