KNORCA Flue Gas Dｅｎｉtrification Eｑｕｉｐment• Dry Ammonia catalytic reduction methodFeatures

Boiler･cogeneration･City incinerator etc.
exhaust gas treatment equipment

Ｄｒｙ Process

Applications

Kurabo Industries Ltd.

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The arbitrary stable NOx removal efficiency
is acquired and long-lasting stability
operation is possible.
The simple structure enable very easy
operation and control.
With lower catalyst layer occlusion or SOx
poisoning the long stable running is possiblefor dirty gases such as coal fired, oil coke
fired or C-heavy oil fired boilers containing
quite high SOx or dust concentration.
Water treatment is not necessary due to drysystem.

Overview (Technical principles, actions, etc.)
・Previous systems have had problems with catalyst layer occlusion by soot and catalyst activity.
KNORCA Fuel Gas Denitrification Equipment has solved these problems and hence having beenhighly evaluated among users.
・This equipment, having plenty of installments, consists of reaction tower and ammonia
reservoir ,urea water tank and supply system based dry ammonia contact reduction method
which decomposes NOx from fixed source to harmless nitrogen and water.
・Optional and stable denitrification rate is obtained by means high-performance KNORCA
honeycomb catalyst packed in the reaction tower.
・Catalyst is a cartridge type easy to install or take out.
・The fixed bed catalyst has a dust-through structure evading catalyst occlusion by soot deposit
and enable a long stable running.
【Principle of the process】
・Ammonia (liquefied ammonia, liquid ammonia) or urea can be used as a reduction agent.
Notes) brand name KNORCAThe abbreviation for KURABO Nitrogen Oxides Reducing Catalyst.
The equation of denitrogenization is as follows

4NO ＋ 4NH3 + O2 → 4N2 + 6H2O
6NO2 ＋ 8NH3→ 7N2 + 12H2O

A0サイズ （841×1189mm）

Kansai-Asia Environmental and Energy-Saving Business Promotion Forum (Team E-Kansai)

Introductory Track Record
Customer

Placeyears

type

Exhaust gas
flow (Nm3/h)

Remarks

KURABO

Osaka’73.12

KN-0502

5,000

Test Plant

U

Chiba

’81.05

KNF-700

70,000Lime barking furnace

MAichi’86.07

KNF-1070

110,000

boilerO

Osaka’88.10

KNF-400

42,488Gas turbine

T

Chiba

’89.03

KNF-82045,000

Diesel engine

M

Osaka’89.10

KNF-1000

100,000

boilerM

Osaka’90.03

KNF-74

6,600

Glass furnace

TOkayama’91.03

KNF-570

57,000boilerK CityOsaka’95.03

KNF-980

97,650City incinerator

H

Niigata’97.09KNF-1200

119,000

boilerN

Ibaraki’02.03

KNF-6568

Metal melting equipment

N

Hokkaido’03.10KNF-2700

270,000

boilerI

Niigata’04.1120,800Carbonization furnace

S

Hyogo

’06.06

KNF-250 x 2.
KNF-250

21,948

Nitric acid exhaust gas

X

Osaka’05.12KNF-1600

158,000

Gas turbine

KIbaraki’08.08KF-70

6,528boiler

The above-mentioned delivery track record is extracted.
The delivery track record number will be 70 affairs as of April, 2013.

Effects• A very high denitrification rate is also obtained.
• Water treatment is not necessary due to dry system.

Inquiries

Kurabo Industries LTD.
Engineering Division

http://www.kurabo.co.jp/
E-mail pr_grp@kurabo.co.jp
14-41 Shimokida-cho, Neyagawa-shi, Osaka Prefecture, Japan 572-0823

TEL +81-72-820-7511

FAX +81-72-820-7515

A0サイズ （841×1189mm）

Kansai-Asia Environmental and Energy-Saving Business Promotion Forum (Team E-Kansai)