0

Full Content is available to subscribers

Subscribe/Learn More  >

Hot Tapping in Oil Refineries: Corrosion and Material Concerns

[+] Author Affiliations
Cathleen Shargay

Fluor Corp., Aliso Viejo, CA

Kuntak Daru

Fluor Corp., Houston, TX

Jigneshkumar J. Desai

Fluor Daniel India PVT. Limited, New Dehli, India

Paper No. PVP2017-65422, pp. V06AT06A078; 12 pages
doi:10.1115/PVP2017-65422
From:
  • ASME 2017 Pressure Vessels and Piping Conference
  • Volume 6A: Materials and Fabrication
  • Waikoloa, Hawaii, USA, July 16–20, 2017
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5799-1
  • Copyright © 2017 by ASME

abstract

The purpose of hot tapping is to add connections on piping or equipment without depressurization or disruption of normal process operations. Hence, hot taps involve welding on items while they are in service. Although not desirable, owners are faced with situations in which hot tapping is the best option. With due regards to safety, owners rely on published industry standards, such as API RP 2201 Safe Hot Tapping Practices in the Petroleum and Petrochemical Industries and ASME PCC-2, Repair of Pressure Equipment and Piping, Article 2.10, for guidance on hot tapping. These standards provide excellent guidelines on the safety reviews, design details, welding procedures, testing, etc., and cover some special restrictions for hot taps due to the specific service and/or base materials. However, there are numerous additional hot tapping cases which arise in the refining industry, and the purpose of this paper is to highlight considerations due to potential corrosion or environmental cracking risks and/or due to refinery materials with special welding requirements. Examples are hot taps in services containing sour water and on low alloy Cr-Mo steels. The considerations and suggested special requirements are explained.

Copyright © 2017 by ASME
Topics: Corrosion

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In