Reduction of polycyclic aromatic hydrocarbon (PAH) emissions from coking plants (REDPAH).
Date: 2011-11-29
Institutions: Directorate-General for Research and Innovation
Subjects: applied research, energy technology, industrial research, materials technology, reduction of gas emissions

This  project  has  developed  a  number  of  approaches  to  understand  and  reduce  poly-
cyclic  aromatic  hydrocarbon  (PAH)  and  particulate  matter  (PM)  emissions  from  coking 
plants.  Ammonia water spraying in the gooseneck at the beginning of the coking cycle 
has indicated that coke oven pressure can be regulated during the whole coking time by 
two simple water sprayers.  

Comparisons  were  made  between  the  content  of  PAHs  in  Gray-King  tars  of  several 
commercial coals and blends and the PAHs emitted in a 250 kg coking oven to predict 
and  reduce  the  emissions  for  actual  plants.  The  250  kg  oven  trials  have  identified  how 
marked reductions in PAH emissions can be achieved for the Maltby coal used through 
blending with low volatile coking coals.  

An  innovative  procedure  for  the  measurement  of  non-stack  PAH  emissions  from  coke 
oven batteries has been developed, together with an integrated system for battery evalu-
ation. PM10 and PAH samples taken in two different locations of ArcelorMittal’s coking 
plant in Gijon (Spain), before and after the implantation of a new charging car, revealed 
the significant reductions achieved with this new equipment. The stable carbon isotopic 
values (δ13C) of PAHs in tars are fairly constant for all the major coking coals investigated 
and this has enabled non-coal tar inputs into environment samples to be identified in the 
vicinity of the Gijon and Monckton plants..

K
I
-
N
A
-
2
4
9
6
5
-
E
N
-
N

E
U

R
e
d
u
c
t
i
o
n
o
f
p
o
y
c
y
c

l

l
i

c

a
r
o
m
a
t
i
c
h
y
d
r
o
c
a
r
b
o
n

(

P
A
H

)

i

e
m
s
s
o
n
s

i

Reduction of polycyclic aromatic 
 hydrocarbon (PAH) emissions from coking 
plants (REDPAH) 

i

f
r
o
m
c
o
k
n
g
p
a
n
t
s

l

(

R
e
d
p
a
h

)

E
U
R
2
4
9
6
5

	
	
	
	
	
	
	
	
	
	
	
	
	
Interested in European research?

RTD  info  is  our  quarterly  magazine  keeping  you  in  touch  with  main  developments  (results, 
programmes, events, etc.). It is available in English, French and German. A free sample copy 
or free subscription can be obtained from:

Directorate-General for Research and Innovation
Information and Communication Unit
European Commission
1049 Bruxelles/Brussel
BELGIQUE/BELGIË
Fax +32 229-58220
E-mail: research@ec.europa.eu
Internet: http://ec.europa.eu/research/rtdinfo.html

HOW TO OBTAIN EU PUBLICATIONS 

Free publications: 

•  via EU Bookshop (http://bookshop.europa.eu); 

•  at the European Union’s representations or delegations. You can obtain their 

contact details on the Internet (http://ec.europa.eu) or by sending a fax  
to +352 2929-42758. 

Priced publications: 

•  via EU Bookshop (http://bookshop.europa.eu). 

Priced subscriptions (e.g. annual series of the Official Journal of the 
European Union and reports of cases before the Court of Justice  
of the European Union): 

•  via one of the sales agents of the Publications Office of the European Union 

(http://publications.europa.eu/others/agents/index_en.htm). 

EUROPEAN COMMISSION
Directorate-General for Research and Innovation
Research Fund for Coal and Steel Unit

Contact: RFCS publications
Address: European Commission, CDMA 0/178, 1049 Bruxelles/Brussel, BELGIQUE/BELGIË

Fax +32 229-65987; e-mail: rtd-steel-coal@ec.europa.eu