Chemical Engineering January 2017 - 40

Location
Area/
room
Austria
Cu2S
AHU room 0
DCS room 182
115
Electrical
room
Control
room
Brazil
Operations
room
MCC
China
Wet end
control
DCS
Finland
cabinet
MCC
Control
room
Mechanical
room
Holland
Server
room
Splicer
room
Control
room
Japan
IPC room
192
205
DCS room 182
182
Computer
room
124
DCS room 215
DCS panel 187
Korea
MCC room 204
PLC panel 102
Electrical
room
U.S.
Wet end
drives
Control
room
172
196
175
Cu2O
180
78
46
101
88
125
104
78
44
118
106
150
68
78
105
173
231
62
61
56
50
34
81
86
* Severity level according to ISA Standard 71.04-1985
** Severity level according to ISA Standard 71.04-2013
provide historical data. This is especially important
where equipment warranties specify
establishing and maintaining an ISA Class
G1 environment. Realtime monitoring may
also be used, but should be limited to the
control-room environment. Where corrosion
problems have been identified, it
is recommended to start with ACMs in a
number of locations in order to determine
if contamination is widespread or limited to
a specific area. Once a baseline had been
established, some of the monitors could be
later redeployed around the problem areas
40
to gauge the effectiveness of contamination
control strategies that may be put in
place. Once the environment is under control
and meets the conditions set forth in the
manufacturers' warranties, one can determine
the best permanent ACM locations for
specific needs.
RoHS and reliability
The requirement for corrosion control in
industrial environments remains constant.
However, more companies are now taking a
much closer look at developing or updating
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
JANUARY 2017
TABLE 2. PULP AND PAPER MILL CCC DATA, IN Å/30 DAYS
Cu -
unknown
Copper
total
180
260
161
293
293
125
286
260
168
118
106
150
68
78
105
173
231
277
248
260
160
206
277
261
ISA Class* AgCl
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
35
Ag2S
3,142
3,491
1,582
1,042
1,234
948
1,022
1,118
5,467
1,636
2,634
2,796
2,182
1,964
1,145
1,497
2,145
1,038
1,848
1,810
1,155
1,315
1,565
5,073
Ag -
unknown
Silver
total
3,142
3,491
1,582
1,042
1,234
948
1,022
1,118
5,467
1,636
2,634
2,796
2,182
1,964
1,145
1,497
2,145
1,038
1,848
1,810
1,155
1,340
1,565
5,073
ISA
class**
GX
GX
G3
G3
G3
G2
G3
G3
GX
G3
GX
GX
GX
G3
G3
G3
GX
G3
G3
G3
G3
G3
G3
GX

http://WWW.CHEMENGONLINE.COM

Chemical Engineering January 2017

Table of Contents for the Digital Edition of Chemical Engineering January 2017

Contents
Chemical Engineering January 2017 - Cover1
Chemical Engineering January 2017 - Cover2
Chemical Engineering January 2017 - Contents
Chemical Engineering January 2017 - 2
Chemical Engineering January 2017 - 3
Chemical Engineering January 2017 - 4
Chemical Engineering January 2017 - 5
Chemical Engineering January 2017 - 6
Chemical Engineering January 2017 - 7
Chemical Engineering January 2017 - 8
Chemical Engineering January 2017 - 9
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Chemical Engineering January 2017 - 11
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Chemical Engineering January 2017 - 13
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Chemical Engineering January 2017 - Cover3
Chemical Engineering January 2017 - Cover4
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