Methane Emissions From U.S. Coal Mines in 1980

Bureau of Mines Information Circular/l984

Methane Emissions From U.S. Coal Mines in 1980

By Roy H. Grau Ill and John C. LaScola

UNITED STATES DEPARTMENT OF THE INTERIOR

Information Circular 8987

Methane Emissions From U.S. Coal Mines in 1980

By Roy H. Grau Ill and John C. LaScola

UNITED STATES DEPARTMENT OF THE INTERIOR William P. Clark, Secretary BUREAU OF MINES Robert C. Horton, Director

Library of Congress Cataloging in Publication Data :

Grau, Roy H. I11

Methane emissions from U.S. coal mines in 1980.

(Information circular / United States Department of the Interior, Bu-

reau of Mines ; 8987) Bibliography: p. 7. Supt. o f Docs. no.: I 28.27:8987. 1. Coal bed methane-United States-Statistics. I. LaScola, John C.

11. Title. 111. Title: Methane emissions from US coal mines in 1980. IV. Series: Information circular (United States. Bureau of Mines) ; 8987.

TN 295.U4 [TN 3051 6 2 2 s [622'.8] 84-600 148

CONTENTS Page

AADACRI ncpoebiMEtskpfnsrcenmetceounrortlidehaduwssnuacissslxnciitice.oooeed.-t-nnnisg.Coem..ooanmt..eranf...neild...stnr..s.sdes.i...uoms....manu....innm....ls.et...aasst....lryay.....w.....t.si......iiss...t...ht.......i.......ce.......ms...............i........s.....s...i........o........n........s................o........f................a................t ........l........e........a...............s.........t ........0.................1................M................M........c........fd.....................................................................................................................................................................................................

ILLUSTRATIONS

. ............................... .1

Emissions States..

. .

.n.uam.b.e.r .o.f. .m. .i.n.e.s .. .a.n.d.

.m..e.an..a.n.d.

.m..e.d.ia.n..e.m..is.s.i.o.n.s.

.p.e.r..m.i.n.e..f.o.r..1.1..

.2 T o t a l e m i s s i o n s . number of mines. and mean and median emissions per mine

. .................................... .................................. for the 10 highest emitting coalbeds

3 Total gas content versus depth of coal.

. 4

5

Methane e Emissions

missi vers

o u

n s

s

v de

er pt

sus h of

t

o c

ta oa

l l

.g.a.s..c.o..n.te.n..t ...............................

TABLES

. ................................. 1 Comparison of emissions i n 1975 and 1980

. ... 2 Comparison of t h e 10 mines w i t h t h e h i g h e s t emissions i n 1975 and 1980

. 3

Mines mcfd

w. .it.h..m..e.a.su.r.e.d..t.o.t.a..l .g.a.s..c.o..n.te.n..t .d..a.ta..a.n.d..e.m..i.ss.i.o.n.s..g.r.e.a..te.r..t.h.a.n..0...1.

. A-1

Coal emi

mines ssions

.w. .i .t h.

.e.m..i.s.si.o.n.s.

.o.f..a..t .l.e.a..s

.t .0...1..M..M.c.f.d...l.i.s.t.e.d..b.y..o.r.d.e.r.

.o.f..

...

..

. ....... A-2 Coal mines w i t h emissions of a t l e a s t 0.1 MMcfd. l i s t e d by coalbed

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