rvt_hidur_cballs_engl

HiDurTM Inert Ceramic Balls – Catalyst bed support media

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Member of Kober Group

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RVT Process Equipment GmbH – What you can expect

RVT Process Equipment has offereda full array of products and servicesto the Chemical and Oil & Gas Processing industries for more than30 years.

In addition to a complete line of masstransfer equipment consisting of random packings, column internalsand fractionation trays, RVT ProcessEquipment also offers both randomand structured ceramic packings. As a traditional manufacturer of tech-nical ceramics, Rauschert has a proven record of delivering qualityproducts to well-known global com-panies. Our experienced engineersand ceramic specialists provide com-plete support for our customers.

RVT Process Equipment is familiarwith the standards of the Chemicaland Petro-chemical industries andhas maintained a ISO 9001:2000Quality Management System since1996. Quality assurance and serviceorientation is the focus of our dailybusiness.

Our global headquarter is located inGermany with subsidiaries in the Uni-ted States (RVT Process Equipment,Inc.) and China (RVT, Kunshan, Pro-cess Equipment Co, Ltd.). Further-more, RVT Process Equipment workswith 17 agents and distributors aro-und the world.

RVT Process Equipment’s globalactivities include maintaining stockinventory of ceramic random packing near customer sites in covenient global locations such as theUSA, Europe, Singapore, Shanghaiand Japan. This immediately availa-ble inventory allows RVT ProcessEquipment to provide prompt deli-very in response to local customerneeds. RVT Process Equipment canalso accommodate any requestedspecial packaging requirements.

HiDur™ Inert Ceramic Balls –Our Philosophy

The HiDur™ name represents a product that meets and/or exceedsthe quality standards of our custo-mers. Our mission is to serve ourcustomers to their complete satisfac-tion as a preferred vendor. Our corefocus is on:

■ Quality products,

■ Quality procedures, and

■ Customer satisfaction

RVT Process Equipment is able toprovide superior product and serviceto its customers by identifying manu-facturers who have implementedour quality procedures. Additionally,our staff perform quality tests at RVTProcess Equipment GmbH facilitieson appropriate samples from all pro-duction before any product is relea-sed for shipment.

Since 2005 RVT Process Equipmentis a member of the FRI.

RVT Process Equipment has been acertified company according to ISO9001:2000 since September 1996.


HiDur™ Inert Ceramic Balls

HiDur™ Inert Ceramic Balls are designed for a wide range of appli-cations acting as carrier layers orcover layers of catalyst packings,absorbents, molecular sieves andsilica gel. Due to excellent crushstrength and high resistance to thermal shock HiDur™ Inert CeramicBalls are suitable for a wide variety

of industrial processes like clausreactors, reformers, hydrocrackers,hydrotreaters, dryers, desulph-urization plants, and others. HiDur™Inert Ceramic Balls have performedfailure-free in operation in industrialplants for decades due to superiorphysical properties.

HiDur™ Inert Ceramic Balls

Typical chemical composition

SiO2 < 80% MgO 0.6-1.2 %

SiO2 + Al2O3 > 90% CaO 0.6-0.9 %

TiO2 0.5 -0.8% K2O 2.3-3.0 %

Fe2O3 0.4 -0.8% Na2O 0.5-0.8 %

Leachable iron: < 0.1%Water absorption < 0.5%

Nominal Bulk Specific Minimum size density surface area crush strength

HiDurTM Inert Ceramic BallsTechnical data and properties

inch mm kg/m3 Ibs/ft3 m2/m3 ft2/ft3 N (min)1/8“ 3.2 1,350 84.3 720 219.5 3001/4“ 6.4 1,350 84.3 520 158.5 6003/8“ 9.5 1,350 84.3 360 109.7 1,2001/2“ 12.7 1,350 84.4 275 83.8 2,7003/4“ 19.1 1,350 84.3 190 57.9 4,300

1“ 25.4 1,350 84.3 144 43.9 7,950

11/2“ 38.1 1,350 84.3 100 30.5 9,100

2“ 50.8 1,350 84.3 72 21.9 9,100

Density g/cm3 2.3 - 2.4 Ibs/ft3 143.6 - 149.8

Typical physical properties

Sphericity dmax/dmin < 1.15

E-Modulus GPa 60

Mohs Hardness - 7 – 8

Heat Capacity J/kgK 84030°C to 100°C/86°F to 212°F BTU/lb °F 0.20

Thermal Conductivity W/mK 1-1.530°C to 100°C/86°F to 212°F BTU/inch ft2 hr °F 7-10.5

Heat Expansion (20°C-600°C) 10-6 K-1 4.7

Thermal Resistance up to °C 1,000up to °F 1,800


HiDurTM Alumina Oxide BallsTechnical data and properties

HiDur™ Alumina Oxide Balls

HiDur™ Alumina Oxide Balls consistof > 99% wt of alpha-alumina oxidewith a maximum content of 0.2% wt.of silica dioxide. This composition is ideal for applications requiring extremely high crush strength andthermal resistance. These balls aretypically used in high temperatureenvironments such as steam shift

operations. The extremely low SiO2

and Fe2O3 content prevent the poisoning of catalysts or fouling of downstream processes. Typicalapplications are in ammonia plants,ethylene crackers and polymeriza-tion units within the Petrochemicalindustry.

HiDur™ Alumina Oxide Balls

Typical chemical composition

Al2O3 > 99 %

SiO2 <_ 0.2 %

TiO2 <_ 0.1 %

Fe2O3 <_ 0.12 %

MgO + CaO <_ 0.2 %

Na2O + K2O <_ 0.4 %

Leachable iron: <_ 0.01 %

Nominal Bulk density Specific Minimum size surface area crush strength

inch mm kg/m3 Ibs/ft3 m2/m3 ft2/ft3 N (min)1/8“ 3.2 2,000-2,200 124.6-137.1 720 219.5 5001/4“ 6.4 2,000-2,200 124.6-137.1 520 158.5 2,5003/8“ 9.5 2,000-2,200 124.6-137.1 360 109.7 4,0001/2“ 12.7 2,000-2,200 124.6-137.1 275 83.8 6,0003/4“ 19.1 2,000-2,200 124.6-137.1 190 57.9 10,000

1“ 25.4 2,000-2,200 124.6-137.1 144 43.9 14,000

11/2“ 38.1 2,000-2,200 124.6-137.1 100 30.5 18,000

2“ 50.8 2,000-2,200 124.6-137.1 72 21.9 25,000

Density g/cm3 3.0 - 3.6 Ibs/ft3 206 - 224.7

Typical physical properties

Sphericity dmax/dmin < 1.15

E-Modulus GPa 300

Mohs Hardness - 9

Heat Capacity J/kgK 850-1,05030°C to 100°C/86°F to 212°F BTU/lb °F 0.203-0.251

Thermal Conductivity W/mK 19-3030°C to 100°C/86°F to 212°F BTU/inch ft2 hr °F 131.7-208

Heat Expansion (20°C-600°C) 10-6 K-1 7-9

Thermal Resistance up to °C 1,500up to °F 2,730


Test methods for HiDur™ Inert Balls

The quality of our products is assu-red through process control andreaffirmed by quality assurancetesting as described below. Thesequality checks can include rawmaterials, mixing, forming, drying,firing, screening, packaging andshipping. Standard test methods are employed before any product is released for shipment. Additionaltesting is available on customer’srequest.

Standard Test Methods

■ Shape and Size

■ Drop Test

Shape and Size:

This test assures the achievement of the specified geometrical dataand overall shape and surface of theballs and at the same time indicatesof a proper drying and firing pro-cess, thus ensuring product qualityand consistency.

Drop Test

This test verifies the structural inte-grity of the balls in order to preventbreakage during installation or bedloading, which can lead to cloggingresulting in pressure drop increase.

The above tests are executed byRVT personnel for all production.The test reports are delivered toRVT’s Quality Manager for analysis.No delivery can ship without theapproval and release of the QualityManager.

Additional testing methodsavailable

Besides the described standard test methods performed for every delivery, the following additionaltesting methods are available:

■ Crush Strength

■ Chemical Analysis

■ Leachable Iron

■ Water Absorption Test

■ Thermal Shock Crush Strength Test

■ Autoclave Test

■ Others per request

Crush Strength

This test ensures that the balls are of a homogeneous material and are free of mechanical defects whichcan lead to bed failure during operation.

Chemical Analysis

Determines the composition of the material by traditional “wet chemistry” methods. This test is performed according to DIN 51 001.

Leachable Iron

The leachable iron is related to the chemical resistance of the material, and is tested according to ASTM C 279.

Water Absorption Test

This test determines the porosity of the balls. The test is performedaccording to DIN VDE 0335, part 2.

Thermal Shock Crush Strength Test

High temperatures and fast temperature changes can impact thedurability of the balls. This test simulates an extreme temperatureshock.

Autoclave Test

High differences in pressure togetherwith high temperatures can impactthe durability of the balls.

This test simulates a high pressuredrop (within less than 1 sec.) of areactor filled with hydrogen at a hightemperature.

Other Tests

Other tests can be performed percustomer request.

HiDurTM Quality Assurance – Quality control from manufacturing to the customer


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RVT Process Equipment GmbHRange of Products

Tower Packings for Mass and Heat Transfer

Column Internals

Mass Transfer Trays

BiologicalCarrier Media

Turn-Key Units for Waste Gas Scrubbing

Ammonia Recovery Processes

Units for Specific Thermal Separation Processes

Highly effective Separator for Fine Particles

Directions to Our Facilities

Our Addresses

RVT Process Equipment GmbHPaul-Rauschert-Straße 6D-96349 Steinwiesen

Phone +49 (0) 9262 77-0Fax +49 (0) 9262 971 51E-Mail [email protected]

RVT Process Equipment, Inc.9047 Executive Park Drive Suite 222Knoxville, TN 37923, USA

Phone +1 (865) 694-2089Fax +1 (865) 560-3115E-Mail [email protected]

RVT (Kunshan) Process Equipment Co, LTD, East Zhangji Road, Development Zone Kunshan,215300 Kunshan, Jiangsu province,P.R. China

Phone +86 (512) 55 18 82 55+86 (512) 55 18 82 52

Fax +86 (512) 55 18 81 87E-Mail [email protected]

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www.rvtpe.com


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