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A global leader in thiochemistry, Arkema

manufactures one of the most efficient

activating agents, dimethyl disulfide (DMDS),

in the U.S., Europe, and Asia.

Carelflex

®

sulfiding service offers:

Sulfiding procedures, technical guidance,

training, and 24/7 coverage during activation

Patented, low-odor DMDS Evolution

®

2

Dedicated high capacity pressure equipment

High pressure pumping

H

2

S analysis with remote data access

during activation

Arkema amines available for passivation of

hydrocracking catalysts

Our global logistics network and experienced

Carelflex

®

sulfiding service team stand ready

for your next activation.

For Customer Service,

call 800.628.4453

dmds-evolution.com

Carelflex and Evolution are registered trademarks of Arkema.

© 2017 Arkema Inc. All rights reserved.

ARKEMA’S

CARELFLEX

®

SULFIDING

SERVICE HAS

YOU COVERED

failure of the elastomeric sealant used in the

joints between sections.

Based on the outcome of a prior inspection,

the affected lines were identified by system

number and reviewed by a process group

consisting of Bilfinger experts and client

representatives to establish the requirements

for replacement insulation. Once the scope was

agreed with the client, marked up piping and

instrumentation diagrams and isometrics were

produced, along with a schedule of works for

replacing the sections in question.

Where replacements were needed, the

mineral wool was replaced with foam glass. This

was clad in banding tape sealed with advanced

Terostat PC vapour-barrier mastic, a long-life

sealant proven to deliver better resistance than

elastomeric options. The insulation was applied

in the form of prefabricated shells, which are

supplied tailor-made, allowing fast installation

on site and reduced installation costs.

The scale of the project, in which hundreds

of metres of insulation needed to be replaced,

meant that the works would take place over a

period of several months. Throughout delivery,

the project team delivered a monthly report,

providing information on productivity;

tool-time; costs; man allocation hours; work

pack tracker; project highs and lows; health,

safety, environment and quality (HSEQ) CUI

statistics; and linear distance re-insulated.

Ageing infrastructure

CUI is critical, especially where ageing

infrastructure is involved. The financial burden

involved in carrying out inspections can be

significant, so the process of developing

innovations to make it more efficient is vital in

decreasing the temptation to push back or skip

this essential safety monitoring process.

Conclusion

There is a tendency for there to be a disjoin

between ways of working on and offshore. A

service provider that works across both areas

can observe the differences in approach and

the effect that it has on the quality and cost

effectiveness of maintenance programmes.

There is an argument that onshore oil, gas and

petrochemicals facilities are some way behind

their offshore counterparts in terms of the way

they are tackling CUI, and it is important for

operators to look carefully at their approach so

that the best outcomes at the best value are

ensured.

Failure to manage CUI can, at best, lead to

expensive and time consuming maintenance

operations and, at worst, pose a major threat to

the safety of facilities and personnel – it is not

an area operators can afford to overlook.