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Editor's Note: An Ideal Raw Material for Pulp and Paper, TAP

Editor's Note: An Ideal Raw Material for Pulp and Paper, TAPPI JOURNAL March 2010

Journal articles
Magazine articles
Open Access
Low-temperature precausticizing — a hopeful approach for green liquor desilication, TAPPI JOURNAL February 2017

Low-temperature precausticizing — a hopeful approach for green liquor desilication, TAPPI JOURNAL February 2017

Journal articles
Magazine articles
Open Access
Removal of silicon from green liquor with low-temperature precausticizing, TAPPI JOURNAL January 2017

Removal of silicon from green liquor with low-temperature precausticizing, TAPPI JOURNAL January 2017

Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º January/February 2017

TAPPI Journal Summaries, Paper360º January/February 2017

Journal articles
Magazine articles
Riding the Rails, Paper360º, July/August 2017

Riding the Rails, Paper360º, July/August 2017

Journal articles
Magazine articles
Open Access
Kinetics of sulfur dioxide-alcohol-water (SAW) pulping of su

Kinetics of sulfur dioxide-alcohol-water (SAW) pulping of sugarcane straw (SCS), TAPPI JOURNAL June 2017

Journal articles
Magazine articles
Open Access
Pulping and bleaching of Malaysian oil palm empty fruit bunc

Pulping and bleaching of Malaysian oil palm empty fruit bunches, TAPPI JOURNAL June 2017

Journal articles
Magazine articles
Paper Chemistry: What’s New, What’s Next, Paper360º March/

Paper Chemistry: What’s New, What’s Next, Paper360º March/April 2017

Journal articles
Magazine articles
New Outlook for Ecologic, Paper360º March/April 2017

New Outlook for Ecologic, Paper360º March/April 2017

Journal articles
Magazine articles
Open Access
Continuous digester process safety improvements • Stress corrosion cracking and overpressure protection lessons learned and opportunities, TAPPI Journal October 2024

ABSTRACT: Georgia-Pacific has recent experience with continuous digester stress corrosion cracking (SCC) repairs where the extent of SCC was more than previous spot inspections had predicted (one digester had anodic protection, one did not). This paper offers case studies of reviewed and improved digester inspections by use of “boat” samples to quantify the depth of cracking mechanism. Boat sample test data is used to support repair recommendations based on hardness testing. Georgia-Pacific also reviewed overpressure protection systems and corrected gaps found in these systems. These included updating to the latest original equipment manufacturer (OEM) designs and formalizing functional testing procedures and practices. This review of digester inspection, testing, and repairs since 2020 provides: (1) a basis for including a 3rd party corrosion expert to be a part of inspections; (2) removes the use of power-wire brushes; (3) enhances digester inspection with 100% phased-array ultrasonic testing to detect SCC; and (4) ensures overpressure protection design and testing is aligned with corporate needs and the site-specific challenges.

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