Low precious metal losses and high N2O reduction with Heraeus Catalytic Systems

Oliver Henkes

Oliver Henkes| HCH - GA | 25th February 2015 Page 1

Table of Contents

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Heraeus Service

Heraeus FTC Gauze packs with FTC-HR and FTC-LL systems

Levels of Precious Metal losses with FTC gauzes

Countries with existing or developing emission trading systems

Development of carbon prices

N2O reduction with Heraeus N2O abatement products

Introduction: Heraeus Technical Service

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Catalytic gauzes

Iron-oxide based

secondary catalyst

Precious metal

secondary catalyst

Introduction: Heraeus Technical Service

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Installation of primary and N2O abatement catalyst

Introduction: Heraeus Service

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Refining Service &

Plant Cleaning

Investigation &

Trouble shooting

Introduction: Heraeus FTC Gauze Pack Overview

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Advanced

FTC catalyst system

Low PM Inventory

FTCReduced PGM inventory

Highest conversion rate and selectivity

Long operating cycles

FTCplus+ Reduced N2O emission

FTC-HR+ Maximum reduction in N2O emission

FTC-rf+ Lower Rh inventory and Rh losses

FTC-LL+ Optional metal recovery function

FTCcg+ Lower pressure drop by corrugation

Optional for all FTC types above

Market prices

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http://heraeus-edelmetallhandel.de/en/marktinformationen/edelmetallcharts/edelmetallcharts.aspx#

The Platinum Price 2009-2015 The Rhodium Price 2009-2015

The Palladium Price 2009-2015

Precious Metals have a

huge impact on the Nitric Acid

manufacturing cost

Heraeus FTC Gauze Packs: Very low levels of Precious Metal losses

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0

10

20

30

40

50

60

70

80

90

100

FTCplus FTCcg

Reco

very

rate

(%

)

Heraeus FTC Gauze Packs

High Pressure Plants

Minimum

for special

cases

Countries with existing or developing emission trading systems

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Development of carbon prices

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Maximum N2O abatement with Heraeus FTC-HR Gauzes

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Multi-burner medium pressure nitric acid plant

N2O abatement with Heraeus FTC Gauze Packs

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0

200

400

600

800

1000

1200

1400

1600

1800

2000

0 30 60 90 120 150 180 210

N2O

em

issio

n (

pp

mv)

Days

PtRh gauzes

corrugated FTC pack

High pressure Weatherly plant

N2O abatementHeraeus Secondary Catalyst Technologies

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Precious metal catalyst HRSC

High purity -Al2O3 carrierPrecious metal coating

No foreign elements in process

Base metal catalyst HRSC-NPM

Fe2O3 / Al2O3Adjustable size

No precious metal handling

N2O reduction with Heraeus N2O abatement products

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0

200

400

600

800

1000

0 300 600 900 1200 1500 1800 2100 2400

N2O

em

issio

n (

pp

mv)

Days

FTCplus Gauze pack Precious metal secondary catalyst layer thickness successive

doubled over time to approx. 150 mm campaign length 330 days

N2O reduction with Heraeus N2O abatement products

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0

20

40

60

80

100

120

140

160

180

0 50 100 150 200 250 300 350

N2O

em

iss

ion

(p

pm

v)

Operating Days

FTC-HR Gauze packIron oxide secondary catalystlayer thicknes < 70 mm

average N2O emission: 75 ppmv N2O

Conclusions

Heraeus provides a wide range of Products and Technical Services

FTC-HR gauze systems achieve lowest N2O emissions

FTC-LL systems further reduce Platinum losses

Heraeus Secondary Catalyst Systems allow customers to stay below emission

targets of EU ETS and beyond

Heraeus abatement solutions may be combined with a tertiary catalyst

Minimize total cost of ownership for the customer with Heraeus primary

and secondary catalyst systems

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Thank you for your attention!

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