Corrosion

Metallurgy solution to prevent polythionic acid stress corrosion cracking in hydroprocessing

Hoehn, R. K., Bradley, S. A., M. W. Mucek, Honeywell UOP; Anada, H., Osuki, T., Nippon Steel and Sumitomo Metal Corp.

Hydrotreating is a staple process found in nearly every refinery. The process removes undesirable feed contaminants, such as sulfur, nitrogen and metals, and saturates olefins and/or aromatics to produce high-quality products.

Editorial Comment: It’s all in the makeup of things

Nichols, Lee, Hydrocarbon Processing Staff

This issue of Hydrocarbon Processing features a topic that has been addressed in sections of the magazine for several decades, but has never been a focal point of the publication. That topic is materials manufacturing.

Determine trace amounts of organic acids causing refinery corrosion

Tang, Z., Yuan, B., Zheng, S., Chung, K. H., North Huajin Chemicals Industries Group Corp.; Shi, Q., China University of Petroleum

Petroleum is a complex hydrocarbon mixture that contains small amounts of organic acids, such as naphthenic acids and phenols.

Case histories of amine plant equipment corrosion problems–Part 2

Daughtry, J., Teletzke, E., INEOS Oxide GAS/ SPEC Technology Group

Past corrosion incidents provide insight into the causes of corrosion and the preventive actions required to protect plant equipment and reduce costly plant downtime.

Operations: Maximizing the opportunity of discounted crudes

Duggan, G., Navarrete, R., Baker Hughes

As the oil and gas industry adjusts to a business environment in which crude oil prices will likely remain lower for longer, refiners continue looking for ways to maximize their profitability.

Case histories of amine plant equipment corrosion problems–Part 1

Daughtry, J., Teletzke, E., INEOS Oxide GAS/ SPEC Technology Group

Lost production from corrosion costs the oil and gas industry more than $1 B/yr.1

Heavy crude oil processing design and reliability

Martin, G., Liu, Z., Wang, S., GTC Technology US LLC

Revamping refineries to process heavier crude slates goes well beyond the requirements to meet equipment performance dictated by a shift in the quantity of lighter product yields to heavier products.

Process safety incidents involving simultaneous operations

Baybutt, P., Primatech, Inc.

Some process safety incidents occur as the result of simultaneous or sequential occurrences of operations or activities that interfere or clash with each other.

Design atmospheric aboveground storage tanks for accident prevention

Zardynezhad, S., Contributing Writer

The design and construction of oil, gas and petrochemical facilities is continuously improving, as increasing compliance with ever-changing codes and standards, such as the American Petroleum Institute (API) and the National Fire Protection Association (NFPA), is resulting in fewer atmospheric above-ground storage tank (AAST) accidents.

Refining: Use of Alloy 400 for hydrofluoric acid corrosion in a refinery alkylation unit

Alkylation units can be based on sulfuric acid or hydrochloric acid as a catalyst.