Pumps

How the “LLF” condition monitoring technique can improve manufactured product profitability

Das, S., Bahrain Petroleum Co. (Bapco)

Technological advances have allowed predictive maintenance (i.e., condition-based maintenance) to overtake preventive maintenance in plant operations. “Look, listen and feel (LLF)” is a condition monitoring technique that improves the reliability of equipment and machinery in manifolds.

Reliability: Include pump wear rings in your upgrade efforts

Bloch, Heinz P., Hydrocarbon Processing Staff

Most centrifugal pump designs include replaceable rotating wear rings on the impeller (impeller wear rings) and stationary wear rings inside the casing (case wear rings). Although pump wear rings are simple components, they can have profound impacts on pump reliability, efficiency and safety. These wear rings serve three purposes:

Consider pitot tube pumps for low-flow, high-head applications

Alshaye, A., Saudi Aramco

Low-flow, high-head pumping requirements in refining and petrochemical plants make up less than 2% of the total pump population. This minor percentage is creating significant reliability concerns, which result in low mean-time between failures (MTBF), as well as high maintenance costs.

Advancing export terminal technology: An optimized process for the refrigeration of cryogenic hydrocarbons

Ethane production in North America (NA) has expanded dramatically with the onset of shale production and associated hydraulic fracturing. Ethane concentrations in fractured shale gas are typically 10% or higher vs. a traditional range of 4%–7% in associated gas.

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.

The design and construction of large crude oil storage tanks with double-deck floating roofs

Reddy, K. V., Sajeev, V. N., FACT Engineering and Design Organization

As crude oil prices decline, consumption of petroleum fuels is increasing.

Reliability: Could a company be its own worst enemy?

Bloch, Heinz P., Hydrocarbon Processing Staff

In a recent conversation with a “pump veteran,” we explored his 33 yr of experience with pump original equipment manufacturers (OEMs) from 1984–1997 and with a widely known non-OEM (1997–2017).

Optimize operating parameters for C3 splitters to accommodate feed changes

Sami, M., Contributing Writer

In the oil and gas sector, fractionation is a vital part of every plant.

Safety in design during mechanical engineering

Kunte, V. A., Swami, S. S., TATA Consulting Engineers Ltd.

After a process engineer has completed preliminary documents such as process flow diagrams, material and energy balance, piping and instrumentation diagrams, equipment data sheets, process control philosophies, identifications of the hazardous nature of raw materials, chemicals, byproducts and final products, process equipment layout drawings (plans and elevations), unit plot plans, etc., these documents are issued to other disciplines to carry out further engineering.

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.