SOVIET EXPERIMENTS WITH GASIFICATION OF PECHORA BASIN COAL

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000700030241-9
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 3
• Document Creation Date: December 22, 2016
• Document Release Date: October 6, 2011
• Sequence Number: 241
• Publication Date: December 3, 1951
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/10/17: CIA-RDP80-00809A000700030241-9
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INFORMATION FROM PORT
FOREIGN DOCUMENTS OR RADIO BROADCASTS CD NO.
CLASSIFICATION SECURITY TINFOATIC R T
CENTRAL INTELLIGENCE Af`ENCY "EST MI., R+ F!
DATE OF
INFORMATIO
N
Economic; Technological
- Coal gasification
Monthly periodical
Moscow
Sep 1951
DATE UIST. 3 Doc 1951
NO. OF PAGES 3
SUPPLEMENT TO
REPORT NO.
THIS IS UNEVALUATED INFORMATION
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Za Ekonomiyu Topliva, No 9, 1951.
SOVIET EXPERIMENTS WITH GASIFICATION OF PECHORA BASIN COAL
K. V. Malikov
G. N. 9u_.ntsov
The importance of gasifying Pechora basin coal has been established in
a previous article. In experiments carried out in a laboratory gas generator
of VNIIT (All-Union Scientific Research Institute of Fuel) it was discovered
that the most suitable coal for gas production from the Pechora area comes
from mines No 1 and 2.
Coal from the deposit which is worked in these mines belongs to the long-
flame type from the standpoint of its volatile substance content and the char-
acter of the bead which is formed in experimentation, but it differs from
known bituminous coals in that it contains humic acid. In determining the
volatile substance content of the coal, a noncaking powdery bead is formed.
Industrial experiments were conducted in a Wellman gas generator using
lower ash-content coal from Mine No 2 and higher ash-content coal from Mine
No 1. The chief reason for the choice of this type of generator for the first
industrial experiments with the coal in question was that it has been im-
possible to make absolutely certai.: in laboratory tests that the coal was
completely lacking in caking properties.
The experiments in this generator produced gas with a calorific value
of 1,500-1,580 calories per cubic meter (compressed) and containing 3-5 per-
cent of carbon dioxide and 28-30 percent of carbon monoxide. Lumps of coal
in the layer being gasified did not adhere to one another, and, during the
entire course of the tests no tendency to cake was observed.
However, the Wellman generator is not suitable for coal with a high
ash content. It lacks a water jacket, and the lower part of the shaft is
not properly constructed to permit a high productivity. The rate of the
process during the experiments did not exceed 100 kilograms of natural fuel
per square meter of the grate per hour.
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To reach a final decision on the suitability of coal from Mine No 2 for
purposes of gasification, repeated industrial tests were made in ordinary
semimechanized gas generators. A gas generator station which had been operat-
ing efficiently on Chelyabinsk coal containing 25 percent or more ash was
selected as the site of the experiments, This station was equipped with
Humbold-Deitz and AFG gas generators, both types 2.6 meters in diameter.
Before the start of the experiments in the AFG generator, it had been
operating exclusively with Chelyabinsk coal. The transition to Pechora
coal was made gradually, 15 ;ercent being used the first day; 50 percent,
t'e second; and 100 percent, the third. The gradual addition of the coal
being tested did not lead to any great changes in the operation of the
generator. The process went on continuously and no additional poking was
required. The productivity of the generator declined slightly. The cal-
orific value of the gas produced ranged from 1,400 to 1,435 calories per
cubic meter (compressed)
The GD generator had also been vcrking exclusively with Chelyabinsk
coal prior to the start of experiments. and without stopping for cleaning
it was immediately converted to Pechora coal No essential champ- was noted
in the operation of the generator after the conversion. During 7 days of
experimentation the productivity of the generator was 27 tons of natural
fuel per day, which is equivalent to 18 tons of standard fuel. In gasifying
Chelyabinsk coal in the _dme generator the productivity had ranged from 18
to 20 tons of standard fuel per day The tale-lfic value of the gas obtained
during the experiments averaged ',360 calories per cubic meter (compressed),
but in some cases it went as high as 1,460 to 1,1'64 calories per cubic meter
(compressed) It will be g p
possible to imprc;?s the quality of the gas obtained
as methods of producing it are more thoroughly mastered.
The following conclusions may be drawn from the experiments carried out
by VNIIT and from the industrial gasification of coal from Mine No 2 in semi-
mecheniz-d Ar'G and Humbcld-Deitz generators
1. Coal from Mine No 2 shows no tendency to cake during the gasifica-
tion process and may be used as fuel fir gas production in ordinary semi-
mechanized gas generators
2
For the near fu'ure, the techotcal characteristics of the gasification
r-ccess and the resuit.ng gas may be assured to be the following;
The rate of the prc,ce=_ is 'O0 kilograms per square meter per hour,
in the case of fuel with an ash content of 25 percent and a moisture ccntent
of 10 t- 12 percent Calorific value of dry gas is 1,400 calories per cubic
meter (compressed) Output -,f gas is 2 12 to 2.15 cubic meters (compressed)
per kilogram of working fuel. Tar content of gas is 20 to 25 grams per cubic
meter (compressed) Moisture content of gas is 100 to 110 rams per cubic
meter (compressed) g p
Temperature gas at outlet of ~.nerator is 350 to 450
degrees cent.grude A.r ':,_nsumrc ,n .s 1 ; to 1.4 cubic meters (compressed).
3 Careful attention must be paid to preparing the fuel (crushing and
sorting)
4 Gas generators gasifying coal from Mine No 2 should have a water
jacket and an efficient ash remover
5 The Pechora basin coal under discussion can be extensively used
for gasification purposes in place of coal which would have to be trans-
ported from a distance
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he authors of this article use kilocalories and calories interchangeably
and, since industrially the term calorie is often used in referring to a
kilocalorie, it is presumed that that is the case here. Calorie has been
used consistently throughout this report]
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