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BASF offers since more than 30 years a broad portfolio for treating streams used in polyethylene, polypropylene or cumene units. The portfolio also covers units recovering olefins like ethylene or propylene recovery units or generating olefins like dehydrogenation units or steamcrackers.
The procedures outlined below are intended as a general guide to good practices for the loading and commissioning of typical adsorbents used in the purification of olefins like PuriStar® adsorbents, Selexsorb® adsorbents or others. Special considerations may be necessary for unusual or atypical applications.
When unloading any Selexorb® or Activated Alumina bed which has been in hydrocarbon or hydrogen service, BASF advises the following guidelines.
BASF Cu-0226 S is a highly dispersed copper oxide impregnated on a high surface alumina used primarily for removing traces of O2 in inert gases like nitrogen. BASF Cu-0226 S is available in spheres with a nominal diameter of 8x14 mesh (1.2 – 2.4 mm) or 14x28 mesh (0.6- 1.2 mm) Cu-0226 S has originally been developed by Dow and has also been referred to as Q5.
PuriStar® R3-12, PuriStar® R3-16 and Selexsorb® AS are used in the oxidized state without any further pre-treatment step such as a reduction. The adsorbents as produced contain a few wt-% of adsorbed water, and they may pick up additional water from the atmosphere during handling and loading.
BASF Adsorbent E 315 is a spherical adsorbent for removing arsine and sulfur compounds from hydrocarbon streams in the presence of hydrogen or multiple unsaturated components.
BASF H0-14 is primarily used for the removal of trace amounts of MAPD from propylene containing streams.
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BASF Na-0101 is a cylindrical adsorbent made out of Sodium Bi-Fluoride (NaHF2 or NAF * HF). Due to its capacity it has been for many years an industry standard for the removal of certain fluoride components. It requires a pre-treatment before use, converting the bi-fluoride into the respective fluoride.
PuriStar® R3-15 and R3-16 are used for the conversion of CO and H2, which can be present in trace amounts in ethylene. For application details, please refer to the respective datasheets.
For over 50 years, BASF has been a leading supplier of adsorbents to a wide-range of industries. We help companies to meet and exceed demanding quality, environmental and government standards with solutions tailored to companies’ specific needs. At BASF, we do this by thinking differently. We control all aspects of product development from design to packaging and quality control. We provide customized products to meet specific production requirements. We offer highly reliable technical service that incorporates the skills, expertise, and knowhow found throughout BASF.
BASF Prosorb is a high-performance material specifically developed for the purification of propylene (e.g. Total's Triple P process).
PuriStar® R0-20 is a robust and versatile catalyst which is comprised of Palladium on a high surface alumina carrier. It is primarily used for the removal of O2 and/or H2 from gas streams, forming water as product.
In the following information is provided on how to handle PuriStar R0-20.
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BASF PuriStar® R0-25 was developed specifically for the catalytic combustion of organic compounds (VOCs) and other combustible compounds from industrial off- gases.
BASF PuriStar® R3-11 is a high-performance material used for the removal of trace impurities from gases and liquids.
BASF PuriStar® R3-11G is a high-performance material used for the removal of trace impurities from gases and liquids. BASF PuriStar® R3-11G is offered in tablet form. Each tablet has a nominal diameter of 5 mm and a height of 3mm (approx. 3/16” x 1/8”). The material is of dark-green to black color.
BASF PuriStar® R3-12 comes in tablet form with a nominal diameter of 5 mm and height of 3 mm (approx. 3/16” x 1/8”). Alternatively, it can be produced in smaller 3 x 3 mm tablets.
BASF PuriStar® R3-15 is designed for the removal of Oxygen from different streams. BASF PuriStar® R3-15 is offered as tablet with a nominal diameter to height ratio of 5 x 3 mm (3/16 x 1/8”).
BASF PuriStar R3-15S is an adsorbent specifically developed for the removal of mercury components from different streams.
BASF PuriStar® R3-16 is a high efficiency CuZn catalyst which is tailor-made for the purification of polymer-grade ethylene. BASF PuriStar® R3-16 comes in tablet form with a nominal diameter of 5 mm and height of 3 mm (approx. 3/16” x 1/8”).
BASF PuriStar® R3-17 is a versatile copper catalyst for removal of traces of carbon monoxide from gaseous and liquid hydrocarbon streams, in particular liquid propylene.
PuriStar® R3-81 is a robust copper catalyst used in sulfided form for the removal of O2, NOx and traces of acetylene from refinery off-gas. PuriStar R3-81 is the focal point of a group of products used for the recovery of ethylene from refinery off-gases.
PuriStar® R8-21 is a robust nickel catalyst used in sulfided form for the removal of O2, NOx and acetylene from refinery off-gas. PuriStar R8-21 is part of a group of products used for the adsorptive treatment of refinery off-gases.
BASF adsorbent R9-12 is a cylindrical adsorbent for removing arsine and sulfur compounds from hydrocarbon streams in the presence of hydrogen or multiple unsaturated components.
BASF adsorbent R9-PAR is a cylindrical adsorbent for removing preferably Arsine and Phosphine from hydrocarbon streams in the presence of hydrogen or multiple unsaturated components.
BASF adsorbent R9-SR is a spherical adsorbent for removing reactive sulfur components from hydrocarbon streams in the presence of hydrogen or multiple unsaturated components.
BASF PuriStar® R3-22 is a high-performance material, designed for removal of Arsine, Phosphine and reactive Sulfur from Propylene containing streams.
The following guideline applies to PuriStar® R3-11, PuriStar® R3-11G, PuriStar® R3-15 and PuriStar® R3-16.
BASF Selexsorb® AS is a smooth, alumina-based spherical adsorbent impregnated with a promoter to provide optimum adsorption capacity for arsine, phosphine and stibine.
BASF Selexsorb® CD is custom formulated to provide optimum adsorption for a number of polar compounds (containing O, N or S) from hydrocarbon streams.
The present guideline provides information on how to bring the indicated adsorbents into contact with liquids and gases.
BASF Selexsorb® CDL is custom-formulated to provide optimum adsorption of a number of polar compounds from reactive olefinic streams.
BASF Selexsorb CDO is a specially prepared alumina adsorbent with relatively low soda, high Lewis acidity and very low Bronsted acidity. BASF Selexsorb CDO is available as spheres with a nominal diameter of 1/8” (approx. 3.2 mm).
BASF Selexsorb® CDX is custom formulated to provide optimum adsorption for a wide range of polar organic compounds. BASF Selexsorb CDX is available as spheres with nominal sizes of 1/16" (7 x 14 Mesh) and 1/8”.
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DownloadBASF Selexsorb® COS is a smooth, spherical adsorbent which is a standard in industry in selectively removing COS, CO2, H2S, and CS2 from hydrocarbon streams.
BASF Selexsorb® COSi is a smooth, spherical adsorbent which shows outstanding performance in removing selectively COS, CO2, H2S and CS2 from hydrocarbon streams
BASF Selexsorb® HG is a promoted and steam activated carbon that provides optimal removal of mercury (Hg) from various gas streams.
BASF Selexsorb® SI is a smooth, spherical alumina that is custom formulated to provide optimum adsorption of organosilicates.
BASF Selexsorb® ST is custom-formulated to provide optimum adsorption of compounds like TBC and water from styrene and butadiene.
The handling of spent PuriStar® R3- Adsorbents and Selexsorb® As required special care. The following indications describe typical methods for unloading of these materials.
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Categories: Adsorbents, Olefin Purification
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BASF Zn 9201 is a zinc oxide adsorbent for the removal of hydrogen sulfide from hydrocarbon feedstocks.
