Acid Gas Removal

Turn to open-path laser detectors for HF gas safety

Dean, K., MSA Senscient

Process engineers at a refinery in one of the Rocky Mountain states were concerned about detecting the potential accidental release of hydrogen fluoride (HF) gas at their plant as part of a recent series of upgrades to the facility.

HF alkylation conversion is finally within reach—Part 1

Because of its clean-fuel properties (paraffinic, high octane, low vapor pressure and very low sulfur), alkylate is considered one of the most desired components in the gasoline pool.

Installation of liquid sulfur degassing processes in existing SRUs

Van Grinsven, R., Van Son, M., Jacobs Comprimo Sulfur Solutions

Over the last 35 yr, more companies worldwide have installed liquid sulfur degassing processes in their sulfur recovery units (SRUs) to minimize the dangers of the release of hydrogen sulfide from the produced elemental sulfur.

Put acid gas hydrocarbons in their place with staged regeneration

Bela, F., WorleyParsons

Common organic contaminants of Claus sulfur recovery unit (SRU) acid gas (AG) feed include: heavy hydrocarbons, in general; benzene, toluene, ethylbenzene and xylene (BTEX), in particular; and methanol (CH3OH).

Handling mercaptans in gas processing plants

Mokhatab, S., Consultant; Northrop, P. S., ExxonMobil Upstream Research Co.

With the continued development of sour gas fields around the world, the removal of mercaptans from gaseous and liquid hydrocarbon streams is becoming a challenge for today’s gas processing plants.

Innovations

Andrew, Bob, Hydrocarbon Processing Staff

Power generation and heating, ventilation and air conditioning (HVAC) specialty rental company, Aggreko Plc., and sulfuric acid alkylation technology licensor, DuPont, have collaborated to provide Aggreko temperature control, including chiller systems, to STRATCO sulfuric acid alkylation customers.

Boost capacity of SRUs with mixing devices for oxygen enrichment

The requirement for additional sulfur recovery unit capacity in a refinery may stem from hydroprocessing operations; a refinery expansion project; a shift from lighter to heavier, sourer crudes to improve margins; or the need to remove extra sulfur content to meet tighter environmental regulations.

Improve refinery flexibility and responsiveness

Olsen, T., Schodowski, E., Emerson Process Management

The hydrocarbon processing industry (HPI) has changed significantly with an abundance of available discounted crude oils, a rise in markets served beyond the traditional local or regional demands, and a renewed focus on being both competitive and profitable while complying with ever-changing regulations.

Improve relief-device sizing under supercritical conditions

Smith, D., Smith & Burgess LLC; Burgess, J., Smith and Burgess LLC

Properly sized relief devices under supercritical conditions are vital to processing natural gas and gas condensates into olefins. These processes operate near the critical locus of the process gases ..

Bolivia expands petrochemical capability with Bulo Bulo ammonia complex

Nogarin, M., Contributing Writer

The Bulo Bulo ammonia-urea facility will be Bolivia’s first petrochemical venture. This new facility is expected to produce sufficient urea/ammonia supplies for domestic demand and will provide surplus product for export.