Tag: Refinery

Following the completion of expansion work on the ultra-sour gas Shah field in May 2023, production has been ramped up. Occidental, which owns 40% of the Shah project and which operates the field in conjunction with ADONC Sour Gas, reported in July that it had achieved record output at Shah, with gross gas sales reaching 722 million scfd in Q2 2023 (equivalent to 1.1 billion scf/d of raw gas, which is 23% H2S and 10% CO 2 ). The expansion has taken processing capacity at Shah to 1.45 billion scf/d and forms part of the UAE’s plans to achieve gas self-sufficiency by the end of the decade. The expansion was conducted by Saipem, who were awarded a $510 million contract in 2021 to expand output from 1.3 billion scf/d to the current 1.45 billion scf/d. Work was completed two months ahead of schedule, according to Occidental.

Comprimo and Ametek now offer the Analyser Air Control Technology (2ACT) Solution to the industry which enables operating companies to control their assets closer to design capacity at higher recovery efficiency and with fewer unscheduled outages.

There is a growing skills gap in the sulphur industry due to the changing nature of the workforce. The traditional ways of doing things are no longer working effectively. Knowledge is lost with retiring subject matter experts (SMEs) and other experienced operations staff leaving a reducing pool of SMEs. In this article a case study reviews how knowledge automation solved the skills gap in a sulphur recovery unit at a major US refinery.

Fluor investigates how SO2 impacts the Claus furnace temperature in an SRU and the ways to mitigate it. This article studies the extent of quenching experienced in the Claus furnace with varying amounts of SO2 in the Claus feed. A case study is presented based on real operating data of a refinery Claus plant with a feed gas cocktail that includes substantial SO2 recovered from a regenerative flue gas desulphurisation unit.

The modern sulphur industry is in effect a response to the environmental problems created by the presence of sulphur compounds in oil and gas, and the consequent release of sulphur dioxide when they are burned. The tens of millions of tonnes extracted, formed, traded and used for sulphuric acid production every year would otherwise be entering the atmosphere and causing health issues, especially in major cities, or returning as acid rain. One of the most recent step changes in sulphur recovery has come from the extension of rules on sulphur content of fuels that have been commonplace for road vehicles for many years into the maritime transport sphere. The International Maritime Organisation has mandated a reduction in sulphur content of bunker fuels to 0.5% worldwide, and 0.1% in busy shipping regions that have become designated emissions control areas (ECAs). Because bunker fuels were made from refinery residues, they often had high concentrations of sulphur in them; the limit before 2020 was 3.5%. As a result, a recent paper by two climate scientists calculates that global SO2 emissions have dropped by as much as 10% since 2020 because of the IMO limits. Given that atmospheric sulphur dioxide is responsible for an estimated 20-90,000 preventable deaths per year, this is surely a good thing.

Kazakhstan’s oil and condensate output increased by 7% from 1.79 million bbl/d to 1.92 million bbl/d in early June after sour gas reinjection operations resumed at the Kashagan offshore oil and gas development following a recent outage, according to the Kazkah Energy Ministry. Reinjection of sour gas into two wells resumed on 8th June, enabling operator the North Caspian Operating Company (NCOC) to boost oil and condensate production at a large artificial island in Kazakhstan’s Caspian Sea waters. Reinjection was paused on May 20th following the detection of sour gas during routine sampling and a subsequent integrity test. Kashagan normally produces about 300,000 barrels of oil per day. Kazakhstan expects Kashsgan to raise oil production this year to 18.2 million t/a from 12.7 million t/a in 2022.

The production of renewable fuels by retrofitting existing refineries and their infrastructure is witnessing exponential growth. The impact on the existing amine, sour water and sulphur recovery units is inevitable. Based on several case studies, Worley Comprimo discusses the various options available to holistically review the sulphur block to determine the impact and mitigation of processing bio-feed.

Sulphur production continues to expand in the Middle East and China both from new refineries and major sour gas projects.

Suncor has selected Rich Kruger to be the company’s next president and CEO, effective from April 3rd, according to the company. Kruger will also join the Suncor board of directors. The announcement follows a search process conducted by a special committee of the board. Rich Kruger previously worked for ExxonMobil for 39 years, and was the chairman and CEO of Imperial Oil Ltd from 2013 through 2019 before retiring from the company, where he focused on safety, reliability and operational excellence. Kris Smith, who has been interim CEO since July 2022, will work with Kruger to ensure a smooth transition before assuming the role of Chief Financial Officer and Executive Vice President of Corporate Development, at the conclusion of Suncor’s annual general meeting on May 9, 2023. Alister Cowan, the current CFO, plans to retire but has offered to remain with the company through the end of the year to support the transition to Mr. Smith and to provide advisory services. Smith replaced previous CEO Mark Little, who resigned in July 2022 following investor pressure after a series of safety incidents and fatalities.

SO2 breakthroughs remain an ever present threat to the successful operation of reductive, quenchamine-based tail gas clean-up units (TGUs). Optimized Gas Treating presents a case study which demonstrates how SulphurPro's detailed reaction kinetics and mass transfer rate model can be used to analyse integration techniques and mitigation methods.