REPORT ON EXPERIMENTAL GASIFICATION OF COKE AT LAUCHHAMMER COKERY

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000700110106-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 22, 2016
• Document Release Date: September 15, 2011
• Sequence Number: 106
• Publication Date: May 19, 1953
• Content Type: REPORT

Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP80-00809A000700110106-0
COUNTRY
SUBJECT
CLASSIFICATIOII,,~i s-E-C-R-E-T
'SECURITY INFORMATIOti
CENTRAL INTELLIGENCE AGENCY
(::FORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS
German Democratic Republic
Economic - Coke, gas
DATE DIST. ~q May 1953
SUPPLcMENT TO
REPORT N0.
. ooawixr c xrn+? ix .x?r , ?nrcnxo rxc .? xn
or'rxc uxnm r ?n., . x . rxc.ux~xa ar r nc i oxrcry
or rxcru.. cooc.'?r ..cxom. m rx? n umxro? ?crc.
unax?or m coxttxn ro o. .uurt .r ?n ux?urxon ue rurox u
The purpose o? this experiment was to determine whether gasification of the
new hard coke from I?aucl,haamwr is possible in a standard revolving-grate genera-
tor. Contrary to expectations, this experiment must be regarded as a failure.
In the case of the mixture ratio designated (in the appended table) under I
(75 p;'rcent brown-coal briquettes and 25 percent brown-coal hard coke), there
were two firing zones in the generator instead of one. The same situation oc-
curred in connection with the mixture ratio specified under II (50 ercent
brown-coal briquettes and 50 percent Iauchhr.mTer coke).. On 28 ~si~ August,
the generator exh:.bited pronounced fire around the rim, whereas the center of
the generator was dead and did not contribute to the gasification. On 23 August,
only brown-coal briquettes were used, so as to restore normal operating condi-
tions in the generator.
At 0750 hours on 25 August, .;~e generator was sgcin operating normally, and
it was subsequently fired with brown-coal hard coke only (100 percent). The
fire zone increased Prom the normal 20-k0 centimeters to 180 centimeters, then
to 320 centimeters, and, finally, the entire fuel bed was burning, with only 70
centimeters of open apace between the upper surface of the fuel and the end of
the generator.
DISTRIBUTION
Declassified in Part - Sanitized Copy Approved for Release 2012/02/08_CIA-RDP80-00809A000700110106-0~
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP80-00809A000700110106-0
Aside from the fact that the method used may be aub,~ect to criticism, it
became evident that the Iauchhammer coke is unsuitable for gasification. The
outface of the coke burns, while the center does not participate in the reac-
tion sad remains comparatively cold. Although the coke hen a high capacity Yor
reaction, the extraordinary thickness has such an effect that the surface of
the individual luap~ of coke reacts and borne, vhiLe the coke briquettes as such
retain their shape and, although the center becomes hot, the thick outer sur-
face prevents the center part from taking part in the gasification. This is
clearly indicated in the experimental results by the increasing C02 content,
the drop is the vied pressure under the grate, the reduced calorific value, and
the fact that~at the ent of the experiment, it vas no longer possible to dis-
tinguish the three customary zones (sah zone, zone of incandescence, reductl~n
and euboequent degeaification zones). Instead, the generator vac filled up
with lumps of coke, gloving on the surface, which retained their shape until
they were removed and which, Yor the most part, were removed unburned.
This experiment had to be discontinued on 27 August. Subsequently, the
experimental low-shaft blast furnace at the Maxhuette Plant vas charged Yor
the first *.ime with broxn-coal hard coke. On 17 September, this experiment,
too, vac given up as unsuccessful. So far as is known, experiments using coke
in cupola furnaces have also failed. Apparently, everything Mailed because the
thickness of the coke prevents controlled combustion. The possibility of pul-
verizing the coke and then preening it into briquettes with ores is being con-
sidered.
~ppended table follovs~
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Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP80-00809A000700110106-0
 Declassified in Part -Sanitized Copy Approved for Release 2012/02/08 :CIA-RDP80-00809A000700110106-0
Report nn the Firat Experiment on the Gasification of Brown-Coal Hard Coke at the Iauchhammer Cokery in as^tandard
Revolving-Grate Hot-Gas Generators of the Maxhuette VEB (People-Owned Enterprise)
i~~-a
~ L _ _ _Declassified in Part -Sanitized Copy Approved for Release 2012/02/08 :CIARDP80-00809A000700110106-0
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP80-00809A000700110106-0
~d3oins page 3 here.]
21/8
0640
4.0 0.5
0.5
22.6
3.0
11.8
46.5
1641
38
480
0830
3.3 0.0
0.l
33.8
2.8
11.0
49.0
1562
33
372
1030
5.6 0.2
0.2
31.0
2.8
12.6
47.6
1536
40
390
1210
6.0 0.4
0.4
29.2
3.2
11.5
49.3
1521
38
460
1050
7.4 0.4
0.4
27.8
2.9
10.24
50.86
1419
38
410
1200
7.4 0.3
0.4
27.9
3.2
12.8
48.0
1515
38
380
1300
8.8 0.4
0.2
25.8
3.6
9.5
51.7
1349
38
400
III.. Mixture F.atio:
100;6 Brown-Coal Briquettes
23/8
0700
5.4 0.4
0.4
29.8
3.8
12.0
48.2
1602
38
410
1130
2.0 0.3
0.4
26.3
4.2
10.8
50.0
1502
40
320
1300
6.4 0.2
0.4
z6.o
4.7
3.1z
59.18
1338
25
320
N.
Mixture Ratio;
100$ Lauchhammer Coke
25/8
0750
3.0 0.0
0.4
33.6
5.7
5.5
51.8
1703 40
320
26/8
0830
10.0 0.7
0.2
23.0
4.6
7.0
54.8
1304 45
520
1130
6.0 0.0
0.4
30.0
2.1;
10.6
50.6
1461 32
450
27/8
0650
9.0 0.0
0.0
25.0
2.0
7.5
56.5
1119 40
360
*~ ~Prubably should read CnBQ~
115
60
160
60
140
65
155
70
120
65
120
62
120
65
120
60
120
60
140
60
loo
55
110
70
100
55
loo
65
Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP80-00809A000700110106-0