A new higher temperature coal tar enamel pipeline coating system

Conference · Thu Aug 01 04:00:00 EDT 1996

OSTI ID:268233

Johnson, J R; Henegar, S; Roder, B ^[1]

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1. Reilly Industries, Inc., Indianapolis, IN (United States)

The integrity of a primer is well known to influence the overall performance of pipeline coatings. Conventional primer systems including chlorinated rubber based primers have long been used with coal tar enamel based pipeline coatings. While these offer high performance at ambient temperatures in field application, high temperature performance above 71 C is limited. There is a need for high temperature performance in oil and gas pipelines, especially near compressor stations for natural gas transmission and in the transport of higher viscosity crude oils. The performance of a newly developed epoxy primer that enhances a coal tar based pipeline coating system is described. Laboratory test results are reported which demonstrate improved high temperature resistance as measured by adhesion, cathodic disbondment, and water resistance. A pilot plant application of the system is described along with the test results of plant applied epoxy/CTE coated steel pipe compared to plant applied FBE coatings.

• OSTI ID: 268233
• Report Number(s): CONF-960389--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
02 PETROLEUM
03 NATURAL GAS
COAL TAR
EPOXIDES
MATERIALS TESTING
MECHANICAL TESTS
NATURAL GAS
PETROLEUM
PHYSICAL PROPERTIES
PIPELINES
PROTECTIVE COATINGS
SURFACE COATING
TEMPERATURE DEPENDENCE
TRANSPORT