Electrolyte membrane fuel cells

Research Research

workers

from

Engineering

Zaragoza,

poster presentations

There

were

topics

membranes

conversion

by oral

for water

to the fuelfor low-

and

and

selectivity

of membranes

apparatus

harvesting

solution-laden fluids.

for

of

apparatus comprises

are

spedking.

use

a filrer

or

a thin membrane

a sintered

stainless

comprising

membrane

layer-

solvent, than

and are

solvent.

separation

discussing

2000

demand

provided

which on

for new membrane-reactor

its

advantages,

prospects

the concentrate

is discharged

of the permeate.

During

gas.

without

An

discharge

the first and third steps

apparatus

supply

for

of membrane

of liquid

performing

filtration

filter

the

of the

of less

Electra-deionisation

this

is also covered

multiple

and most of the in

is passed

and

ion-exchange phase

Applicants: DHV Water, Waterieiding

diluting at one end

at the other,

of

compartments

defined

membranes.

compartments Importantly,

to remove a liquid

floating has

vertically

positioned

membranes

which

nanotiltration steps

consecutively.

First,

without

or

tube

of

time.

for A gas,

a for

along the side of the discharge

of permeate

discharge

of concentrate.

Finally,

system. is

membrane reduce

engine, device

to

with

air

manifold

of

introduced monatomic

into the exhaust

gases to react

membrane

A separator

plate

for

membrane

fuel-cell

least

coextensive

two

These

are shaped

together

a polymer

stack

or cation-exchange and

they

making

promote

sheet-metal

elements

are

18I 5

date: 2 June 2000

Publication

polymer wettability

This invention

Barber, D. Tessier

the surface

selectively

membrane

in this patent.

permeable

device which

surface

injecting

air into the exhaust

is described

system

of

It includes

of a polymer.

energised

includes

surface

air (permeate)

as well as the nitrogen-

chamber,

air (recentate).

Being produced

The manufactured

way, the oxygen-enriched into the exhaust

system,

duct

from

extending

the engine;

into

in this

air can be introduced that is, into an exhaust an exhaust

the exhaust

manifold

manifold

of

of the

or polymer

with

described

by

objectives

of

hydrophobicity

membrane.

the surface with

under

of possible steps. The

vacuum.

is manufactured, by inserting

and irradiating

be treated

the

particles

membrane

enriched

or

by reforming

a number

activation,

enriched

to a

hydrophilicity

involves irradiating ionic

method polymer

the oxygen-

providing

of reforming

and especially

hydrophobicity

The method

air-separating

produces

of

increasing

USA for

relates to a method

of a polymer,

method

Reducing engine exhaust emissions system

nested

flow-space

is formed.

Improving

control

of The

cation-

date: 2 June 2000

emission

the

up the stack.

in such a way that a coolant

Inventor: L.C. Marianowski

of

of at

elements.

gases to the electrodes

mixed-bed

phase,

is constructed

so that

units

USA

electrolyte

sheet-metal

of reactant

coextensive

and

fuel cells

Inventors: J.H.

An

a

nitrogen

Applicant: Institute of Gas Technology,

Patent number: WO 0013

Applicant: University of Chicago,

into

date: 2 June 7000

the ion-

material

material

the

mixed

to an intake

to generate

is injected

by

can be used

NOX by being

and at least one single

anion-exchange

produced

device.

or by being

duct

The nitrogen-

Applicant; LG Chemical Ltd, Korea

a

and

is produced

with minimal

Membrane Technology No. 127

which

air,

the fuel-cell

material.

an engine

The following

concentrate of

enriched

contains

anion-exchange to the

oxygen-enriched

for performing

‘i permeate

period

salts

It uses

repeatedly

air, is rhen guided

membrane, md

performed

discharge

predetermined example

capillary

are suitable

can be

and

developed.

or hyperfiltration.

are

without

substances

been

exhaust

permeable

device

in line with the exhaust

Patent number: WO 00130749 Publication

which

Fax: +27

[email protected],

a pollutant-reducing

of the engine’s

distribution

at least one mixed-

material,

or

and

alternating

Friesland, and Stork Friesland, Netherlands filtration

or into is mounted

Electrolyte

unit.

comprises

adjacent

exchange

and

through

compartments

material.

material

material.

substances

the water

cation-exchange

anion-exchange

from

engine; which

Publication

whereby

compartment

of the diluting

bed

of

7602,

Inventors: R.B. Poola. R.R. Sekar

and apparatus

in an electro-deionisation

cation-exchange

Bochniak

water,

diluting

exchange

D.J.

a method

the concentrating

Each

Matieland

Patent number: WO 0013 1386

Canada

The unit has an anode compartment

with

in

with NO* in those gases.

of water

provides

purified

by anion-

are retained

Email:

the

be

lecturer

University

Tel: +_?7 21 808 3367,

3360,

that is being supplied

phase,

used

808

Inventors: P. De Moel. W.G. Van der Meer, H.

and a cathode

anti-

with

R.A. Rajewski,

of membrane

21

Bag XI,

Patent number: WO 00129099

compartments

under

mixture

Private

further

to

with

Patent number: WO OOl29096

A method

Stellenbosch,

is a senior

of‘ Chemistry,

by the patent.

for electro-deionising

CO,),

Bessarabov

hnp://www.sun.ac.za/rbemistry

This invention

a supercritical

from the solvent.

Removal of floating salts from liquids

Department

South Africa. and

hurdles.

Applicant: E-Cell Corporation,

A feed-stream

the filter, resulting

Inventors: B. Subramaniam.

for

Dmitri

the

which

particles

of the particles

a platform

Dr

Publicatio~z date: 25 May 2000

and

temperature

pass through

http://www.cps.unizar.es/spanishldepts/diqtma.html

recent developments.

process

the

by the fitter while the solvent anti-solvent

Email: [email protected],

seven of

the

miscible

The desired

Another

to reports,

plasma

‘l‘he preferred

substantially

Spain. Tel: +34 976 761153, Fax: +34 976 762142,

van Dalfsen

is conracted

for

and hdve a critical

160°C.

were presented. entirely

which

supercritical

(preferably

of

Santamaria, Department of Chemical & Environmental

and

particles,

conditions

anti-sotvenr solvents

for

that is supported

and a solvenr for the particles, the

provided

separator

for rhe particles

supercritical

session during

Summary

and

from (organic)

sreel tube.

the desired

anti-solvent

30 posters

which covered

method

particles

near-&&l

Broadly

than

technology,

Applicant: University of Kansas, USA and

and new

Engineering, University of Zaragoza, E-50009 Zaragoza,

was also a poster

use can be made of a combined

Size-selective separation micro- and nano-particles

For more information, contact: Professor Jesus

membrane

for membranes.

In brief, 1CCMR

presentations

Patents continuously

catalytic membranes.

reactors,

purification

the preparation

A process

of

session was devoted

enhancement

improvement,

apphcattons more

several

membranes

covered

modelling palladium-based

There

applications.

Other included

also

membrane

proton-exchange

temperature

for

reactors,

talks and

were devoted

technology-based

containing

reactors,

of

talks from Japan.

A few presentations cell

of exciting

&

on zeolite and dense ceramic

reactors.

zeolite-related

Catalysis

at the University

gave a number

membrane

the

Group

including

it into a vacuum

it with

an ion beam.

polymer

membrane

a reactive

gas. The

the

patent

providing without

The

can

also can methods

achieve

hydrophilicity any deterioration

their or of the

A 0