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Maintenance & Reliability

Shell restarts hydrodesulphurization unit at Pernis oil refinery after unplanned outage

Shell has restarted a hydrodesulphurization unit at its 400,000 barrel per day Pernis oil refinery in Rotterdam after an unplanned outage on July 19.

Orlen's Unipetrol will start commissioning ethylene unit after power outage experienced earlier in July

The company expects full resumption of operations in the petrochemical part of the complex and simultaneous increase of production in the refinery section to standard levels by the beginning of next week. 

Marathon refinery in Texas (U.S.) restarts diesel, gasoline units

Marathon has restarted a diesel-producing unit and the gasoline-producing unit at its 631,000-bpd Galveston Bay Refinery in Texas City, Texas (U.S.).

Repairs continuing on hydrocracker at Marathon Galveston Bay Texas Refinery (U.S)

Repairs were continuing on Tuesday to a diesel-producing hydrocracker at Marathon Petroleum's 631,000-bpd Galveston Bay Refinery in Texas City, Texas.

New protein-based system enables plastic recycling with reusable enzymes

In this new study, scientists have introduced an innovative strategy to trap these enzymes within nanoscale protein compartments produced naturally by bacteria, simplifying their use and extending their functional lifespan.

China state refiners ramp up output on rising demand, stock rebuild

Chinese state-owned refiners are ramping up output after completing maintenance to meet higher third-quarter fuel demand and to rebuild diesel and gasoline stocks which are at multi-year lows.

India's BPCL plans to shut Bina refinery unit for 15-day maintenance in August

Diesel output from BPCL's Bina refinery will be affected during the maintenance turnaround, but gasoline production will continue through its secondary unit.

Denso’s Covercoat System sets new standard in corrosion prevention

Denso Inc., a global leader in corrosion prevention and sealing technologies, is highlighting its Covercoat™ System, a comprehensive corrosion prevention solution engineered for steel and concrete columns, support legs, structural steel and a wide range of exposed service pipes and more.

Marathon Galveston Bay refinery (U.S.) hydrotreater to remain shut until September

A fire-damaged hydrotreater at Marathon Petroleum's Galveston Bay refinery in Texas (U.S.) will remain shut until September, sources familiar with plant operations said.

Digital Feature: The critical interdependency of relief valve analysis and flare system considerations during HAZOP

Saudi Aramco: A. Irshad  |  H. A. Althaaly
Environmental Resource Management: P. Dhote

Hazard and operability (HAZOP) studies are a systematic and structured methodology used to identify potential hazards and operability issues in industrial processes. One of the key safeguards often considered in HAZOP studies is pressure relief valves and flare systems to mitigate overpressure scenarios.