a joint company of uhde & gruppo de nora ... widest experience in a joint company of uhde &...

A JOINT COMPANY OFA JOINT COMPANY OFUHDE UHDE && GRUPPO DE NORAGRUPPO DE NORA

WORLD WIDE LEADERWORLD WIDE LEADERin in

ChlorChlor Alkali Membrane TechnologyAlkali Membrane Technology

CEC20%

Asahi Glass10%

Eltech5%Asahi Kasei

25%

ICI3%

UHDENORA Technologies

37%

Market Market SharesShares (open Market) 1993(open Market) 1993--20022002

A JOINT COMPANY OFA JOINT COMPANY OFUHDE & GRUPPO DE NORAUHDE & GRUPPO DE NORA

THETHEWIDEST EXPERIENCEWIDEST EXPERIENCE

IN IN


Single Single ElementElementFilterFilter Press Press

IonIon ExchangeExchange Membrane Membrane Electrolyzer Electrolyzer Technologies Technologies

MonopolarMonopolar BipolarBipolar

DD 88DD 88Zero GapZero Gap

DN 350DN 350Narrow Narrow GapGap



BM 2.7BM 2.7Narrow Narrow GapGap

BipolarBipolar

BM 1.8BM 1.8Finite GapFinite Gap


FILTER PRESS (MONOPOLAR)FILTER PRESS (MONOPOLAR)

AtochemAtochem, , FranceFrance 145,000 145,000 mtpy NaOH mtpy NaOH

FILTER PRESS (BIPOLAR)FILTER PRESS (BIPOLAR)

ChemicalChemical IndustriesIndustries, Singapore 36,000 , Singapore 36,000 mtpy NaOHmtpy NaOH

SINGLE ELEMENT (BIPOLAR)SINGLE ELEMENT (BIPOLAR)

Qatar Qatar VinylVinyl Co., Qatar 305,000 Co., Qatar 305,000 mtpy NaOH mtpy NaOH


BIPOLAR BIPOLAR MEMBRANE ELECTROLYZERS MEMBRANE ELECTROLYZERS

CHARACTERISTICSCHARACTERISTICS

** BM 2.7 ** BM 2.7 SealingSealing SystemSystem TestedTested at 4.7 at 4.7 bargbarg

Model DD 350** DN 350** BM 2.7

Type BipolarFilter Press

BipolarFilter Press

BipolarSingle Element

Electrode Arrangement 0 gap 0 gap Narrow gap

Active Area m2 3.50 3.50 2.72

Current Density KA/m2 3.5 – 4.3 4.0 – 5.4 4.0 – 6.0

Pressure Operation barg No 0.2 Up to 0.3 **

Power Consumption KWh/t NaOH 2210at 4.0 kA/m2

2180at 4.5 kA/m2

2132at 5.0 kA/m2

World-wide InstalledCapacity

mtpyNaOH & KOH 1.25 M 0.2 M 6.0 M

** DD350 and DN 350 ** DD350 and DN 350 Only Spare PartsOnly Spare Parts ProductionProduction

Marked points: unique features

Production of high purity chlorine (0.5 % v/v O 2) with HCl injectionPossibility of load shedingHigh corrosion resistant headers (PP - PP/FRP - FRP)High Tech. cathodic coating (thermal-noble metal oxide based)

Advantages of Single Element DesignAdvantages of Single Element Design

Only one type of element in one electrolyzer (no end elements required)

No dummy membranes (polyethilene sheets) are required for electrolyzer assembling

Hard and long term reliable gaskets which can be re-used

Sealing system tested at 4.7 barg

Pressure operation up to 0.3 barg

Suitable to install any types of membranes from different manufacturers

High Tech. Manufacturing procedure by laser welding

Fast and simple replacement of elements with fully pretested elements

Dismantling of an element affects only the sealing system of this element

Exchange of anode - or cathode - halfshell affects only one membrane instead of two

Flexible remembraning - and recoating (without dismantling the electrodes) - procedures

Clamping system for the membrane via internal distance strips

SINGLE ELEMENTSINGLE ELEMENTDESIGN FEATURESDESIGN FEATURES


** High purity chlorine (0.5% v/v as O2) can be obtained with HCl injection

Anolyte CatholyteAnolyte Catholyteaa Electrolyte inlet Distribution Systema Electrolyte circulation Natural Naturala Dimensions (mm) 2446x1300x41 2446x1300x31a Pan material all Titanium all Nickela Electrode material Ti, coated Ti Ni, coated Nia Electrode type Struct. Louver Mesha Coating type Low O2 evolut. Low H2 overvoltage a Internals Baffle Plate No Internals

Down Comer Platea Internal current conductor Solid Plate, Laser Weldeda Contact strips No. 17 No

(Laser Welded)

a Gaskets PTFE Frame (Reusable)a Rate of brine flow/cell element 0.21 m3/h a Cell temperature 90 oCa Cell pressure up to 0.3 bar up to 0.34 barga Product quality:

NaOH 32% w/wCl2 > 98% v/v**H2 > 99.9% v/v

0

5

10

15

20

25

30

35

13.5 11.9 10.4 7.3 5.8 4.2 2.7

Load KA

Min

ute

s

TheThe BM 2.7 BM 2.7 Bipolar electrolyzerBipolar electrolyzer

aallowsllows thethe load sheding to followload sheding to follow thethe difference difference in day and night in day and night electricity costselectricity costs. .

TheThe required load level required load level ((betweenbetween 20% 20% -- 100%) can 100%) can be reached be reached in in less then less then 30 30 minutesminutes..


BIPOLARBIPOLARMEMBRANE ELECTROLYZER MEMBRANE ELECTROLYZER

BM 2.7BM 2.7


LATEST REFERENCES (UHDE & UHDENORA)LATEST REFERENCES (UHDE & UHDENORA)

Stand : Stand : August August 20022002

COMPANYCOMPANY COUNTRYCOUNTRY CAPACITYCAPACITY START UPSTART UP COMPETITORSCOMPETITORS

TPY TPY NaOHNaOH YEARYEAR

Hanwha Chemical Corporation South Korea 140.000 2001 Asahi Kasei - C.E.C

Vintron GmbH Germany 108.000 2001 Asahi Kasei - C.E.C

QVC Qatar Qatar 305.000 2001 Asahi Kasei - C.E.C

Solvay Belgium 44.000 2001 C.E.C

NCI Jordan 17.500 2001 -

Navoiazot Uzbekistan 26.000 2001 -

Unilever Hellas A.E.B.E Greece 3.400 2001 Ionics

Hangzhou Electrochemical Co. China 20.000 2002 Asahi Kasei - Asahi Glass

Hanwha Chemical Corporation South Korea 70.000 2002 Asahi Kasei - C.E.C

Weifang Yaxing Chemicals China 60.000 2002 Asahi Kasei

Jiangsu Guangming Chemical China 14.000 (KOH) 2002 Eltech

Bayer AG Germany 391.000 2002 Asahi Kasei - C.E.C

South Vietnam Chemical Vietnam 5.000 2002 -

S.N.E.P. Morocco 24.000 2003 Asahi Kasei

Nirou Chlor Iran 4.000 2003 -

The Andhra Sugars India 25.000 2003 Asahi Kasei - C.E.C

Chongqing Sanyang Chemical Co. China 20.000 2003 Eltech - C.E.C.

Jiangsu Meilan Chemical Co. China 50.000 2003 Asahi Kasei - Eltech - C.E.C

Jiangsu Yangnong Chemical China 30.000 2003 Asahi Kasei - C.E.C.

ENIP Algeria 42.000 2004 C.E.C

Basic Chemical Industries Saudi Arabia 23.000 2004 Asahi Kasei - Ineos

TOTAL TPY 1.407.900 (TOTAL TPY 1.407.900 (NaOHNaOH) + 14.000 (KOH)) + 14.000 (KOH)


Membrane Manuf. No. WOL max

U CE NaCl (in NaOH)

Sensitivity against impurities

Mech. Stab.

Ranking

NX 982 WX DuPont >6500 220 + + + + + 1

NX 2010WX DuPont 160 (30*)

14 (150*)

+ +/- + 2

F 893.2NT AGC 36 150 + + + + 4

F 893.3NT AGC 230 220 - + + ++ 3

F 893.5NT AGC 320 100 + + + 1

F 8020 AGC 16 (5) 2(26) ++ + + 2

F 4203 AKC >2000 220 + +/- -- - -- 6

F 4401 AKC 8 120 + + 6

F 4401 C AKC 540 50 + + -- - -- 5

F 4402 AKC 25 65 +/- + 5

LATEST MEMBRANE EXPERIENCE*LATEST MEMBRANE EXPERIENCE*

**BasedBased on data on data from Bayer Uerdingen from Bayer Uerdingen & & DormagenDormagen/QVC Qatar//QVC Qatar/Solvay JemeppeSolvay Jemeppe//SkoghallSkoghall//VintronVintron

BIPOLARBIPOLARMEMBRANE ELECTROLYZER MEMBRANE ELECTROLYZER

BM 2.7BM 2.7ShortShort Downtime forDowntime for ElementElement ReplacementReplacement

CellCell WorkshopWorkshop Storage AreaStorage Areaforfor

prepre--assembled elementsassembled elements

Cell RoomCell Room


ReplacementReplacement of No.1 membrane of No.1 membrane

affects only affects only No.1 No.1 elementary cellelementary cell

TEMPORARY TIETEMPORARY TIE--RODS ARERODS ARE NOTNOT REQUIREDREQUIRED

Membrane

ReplacementReplacement of No.1 membrane of No.1 membrane

affects affects No. 2 No. 2 elementary cellselementary cells

To remove one cell it is necessary to install temporary tie-rods to fix the remaining cells

Membranes

Temporary tie rods

A JOINT COMPANY OFA JOINT COMPANY OFUHDE & GRUPPO DE NORAUHDE & GRUPPO DE NORABIPOLAR BIPOLAR

MEMBRANE ELECTROLYZERMEMBRANE ELECTROLYZERMembrane replacementMembrane replacement

SINGLE ELEMENTS SINGLE ELEMENTS FILTER PRESS FILTER PRESS

Single element

Bipolar element

Timeminutes

WorkersNo.

Timeminutes

WorkersNo.

Shut-down and cooling to 60 oCDepressurize and purge with N2

Electrolyzer drainingUnloosing of pressure deviceAssembly of temporary tie-rodsStack separationMembrane/element replacementElectrolyzer tightening and removal oftemporary tie-rodsFilling and heating upPurge with N2 – pressurization andstart-up

60156030302030

6060

15

1111244

21

1

60156030--

30

3060

15

1111--2

21

1

FILTERFILTER--PRESSPRESS SINGLE ELEMENTSINGLE ELEMENT

ELECTROLYZER TYPEELECTROLYZER TYPE

TOTAL TOTAL Hours Hours 6 h 20 m6 h 20 m 5 h5 h

Man/Man/hours hours 10 h 20 m10 h 20 m 6 h6 h

A JOINT COMPANY OFA JOINT COMPANY OFUHDE & GRUPPO DE NORAUHDE & GRUPPO DE NORABIPOLAR BIPOLAR

MEMBRANE ELECTROLYZERMEMBRANE ELECTROLYZERMembrane replacementMembrane replacement


FUTURE DEVELOPMENTFUTURE DEVELOPMENTNEW PRODUCTS & TECNOLOGIESNEW PRODUCTS & TECNOLOGIES

Gas Gas Diffusion Electrode Diffusion Electrode (G.D.E.) (G.D.E.) TechnologyTechnology

Chlor AlkaliChlor Alkali ProductionProduction••RetrofittingRetrofitting ofof Existing ElectrolyzersExisting Electrolyzers••New membrane New membrane Electrolysis PlantsElectrolysis Plants

OO22

NaOH NaOH NaClNaCl+Cl+Cl22

NaOHNaOH+H+H22O O

OO22

NaCl NaCl GDE/GDE/cathode cathode Anode Anode

0

500

1000

1500

2000

2500

kWh/T NaOH at 4 kA/m2

ConventionalCathode

GDE

UpUp toto30%30%

Energy SavingEnergy Saving****

Oxygen consuming Oxygen consuming Gas Gas Diffusion Electrode Diffusion Electrode (GDE) (GDE) already tested already tested inin Industrial Size Electrolyzer for NaOHIndustrial Size Electrolyzer for NaOH/Cl/Cl22 productionproduction

OO22NaNa++

OHOH--

MembraneMembrane

Chlor Chlor Alkali Production with G.D.E.Alkali Production with G.D.E.



CHLORCHLOR--ALKALI ELECTROLYSISALKALI ELECTROLYSISFirst Industrial Size Test ElectrolyserFirst Industrial Size Test Electrolyser

StartStart--up Dec. 3up Dec. 3rdrd, 1998, 1998

a joint company of uhde & gruppo de nora ... widest experience in a joint company of uhde &...

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