Refining

Viewpoint: The pathway towards autonomy: How process automation is building the future plant

Urso, J., Honeywell Process Solutions

Hydrocarbon Processing sat down with Jason Urso (JU), Chief Technology Officer, Honeywell Process Solutions, to discuss the current state of the process automation industry, how new technologies are enhancing efficiency and safety, and what the future holds for automation.

Pressure swing adsorption vessels fatigue analysis

Kittur, A., Saudi Aramco

The hydrogen (H2) plant in a refinery produces high-purity (99.9+ vol%) H2 products using a licensed pressure swing adsorption (PSA) purification process to fulfill the H2 makeup needs of refinery hydroprocessing facilities.

Use CFD analysis to evaluate the impact of hot air recirculation on air-cooled heat exchangers

Chen, C-C., CTCI, Corp.

Air-cooled heat exchangers are widely used in the petroleum, petrochemical, natural gas and other industries for cooling purposes. In contrast to a water-cooled system, which consists of a traditional shell-and-tube heat exchanger and a cooling tower, an air-cooled heat exchanger uses ambient air as the main cooling medium.

History of the HPI: The 1990s: Clean fuels and emissions mitigation, M&A, GTL and the fieldbus wars

Nichols, Lee, Hydrocarbon Processing Staff

Much like several initiatives passed in the 1970s and 1980s, the 1990s were a decade heavily focused on environmental issues, with many new regulations being enacted to not only mitigate industrial and vehicle emissions but also to advance the production of clean fuels globally.

Hydroprocessing catalyst reload and restart best practices—Part 2

Dyke, S., PetroQuantum; Pongboot, N., Global R&D

Hydroprocessing (hydrotreating and hydrocracking) units are high-pressure, high-temperature units that have multiple reactors, multiple beds per reactor and specialized metallurgy. Catalysts in these units are replaced on a 2 yr–5 yr cycle, depending on feed quality, unit design, catalyst selection, operational constraints and performance.

Evaluate options for decarbonizing petroleum refineries

Singh, R., Bechtel India

The energy transition requires rebuilding the energy supply infrastructure for a lower-carbon economy and renewable energy generation for industry and transportation that run more on electricity and hydrogen and less on fossil fuels and provide a circular path for consumer plastics. The growth in global oil demand is predicted to end within 10 yr, but it is still too early to foresee a rapid decline in that demand.

Choosing the proper regulator configuration can reduce droop

Arumpanayil, S., Swagelok Company

Many factors go into selecting the proper regulator for your system. One of those factors is sensitivity to changes in outlet pressure as downstream flow fluctuates, which is often characterized as “droop” as illustrated within a regulator’s flow curve.

Green refinery challenges: Small-scale sulfur recovery

Echt, W., Merichem

As the gavel dropped, signaling a historic agreement at the conclusion of COP26 (2021 United Nations Climate Change Conference) in Glasgow, Scotland, leaders from 197 nations agreed to continue supporting the goal of limiting global warming to 1.5°C above pre-industrial levels. The race is on!

Column revamp using packings and internal modeling and revamping technology

Shirpurkar, V., Sahara International Petrochemical Co.; Arora, A., Kale, V., Sulzer Chemtech Middle East WLL

The challenge of frequent plugging in vent gas scrubbers is resolved with the highest degree of maleic anhydride (MAN) product recovery.

The downstream rundown: In case you missed it 08/05

In case you missed any downstream news, here are the top stories from last week.