Heat Transfer
Successfully design fired heaters using ultra-low-NOx burners
Recent environmental regulations mandate that refinery and petrochemical industries reduce nitrogen oxide (NOx) emissions. Emissions legislations are constantly under review, and they differ from coun..
Optimize crude preheat train to balance efficiency and operability
Critical attention must be paid when designing the crude distillation unit (CDU) preheat train. Many pitfalls can easily lead to unnecessary expenditures or unsatisfactory operations. Key design crite..
Are you using pinch technology effectively in your daily operations?—Part 1
Pinch technology is the most rigorous, systematic and best documented methodology for process design.1–3 Nearly all optimization projects for heat recovery are conducted with some form of pinch a..
Investigate power limitations in a large steam turbine
An investigation was carried out to rectify power limitations for a steam-turbine driver of a cracked-gas compressor (CGC) in a world-class ethylene plant.DescriptionThe turbine is a nine-stage, impul..
Consider novel CGC and front-end depropanizer system for olefins production
In the presented case study, an innovative design for an integrated CGC-DeC3 system introduces part of the heavier condensate from the early compression stages directly into the high-pressure (HP) depropanizer.
Enhance operation and reliability of dividing-wall columns
Dividing wall columns (DWCs) are an attractive option when the goals are to reduce energy consumption and capital investment for distillation processes. A major component in a DWC system is the reflux..
Optimize vacuum ejector operations
Vacuum distillation unit (VDU) designs generally involve jet ejectors due to their low capital and operating expenses, high reliability, durability and simplicity. Once the ejector is installed and co..
Neste Oil to upgrade heaters at Porvoo refinery
As part of the investment, fired heaters at the refinery's crude distillation unit will be replaced with new-generation heaters, which Neste says will help ensure more consistent, incident-free operations at the site and yield annual energy savings worth an estimated €4 million.
Air Products to supply LNG heat exchangers for Petronas expansion project
Air Products' SplitMR liquefaction process and technology was selected and will be supplied to the Petronas LNG Train 9 Project. This project will produce 3.6 million tpy of LNG and is an expansion of the existing Petronas LNG complex in Bintulu, Sarawak, Malaysia. Financial terms were not disclosed.
North American olefin producers riding the shale gas wave
With the prospect of abundant low-cost ethane, several producers have announced intentions to build new ethylene capacity.
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