NextGen Technology opportunities in LPG sector

A: Option B feels tempting because sulfur gets blamed for everything in hydrocarbon service, but LPG storage sits near ambient and sulfidation kinetics are negligible there. Option C is a real failure mode, but ammonia SCC needs a specific contaminant history and tensile stress that most LPG bullets don't see. Option D sounds modern and tied to CP upgrades, yet hydrogen issues show up with high-strength steels and aggressive potentials, not typical LPG bullets. The coastal wet-dry cycle plus chlorides attacking coating holidays is the mechanism that actually matches the environment described.

A: Option B appeals to anyone used to pressure vessel math, but thinner steel trades weight for dent sensitivity and still needs coatings and inspections. Option C works in breathing air service, yet aluminum LPG cylinders struggle with valve thread galling and cost. Option D sounds maintenance-free, but stainless adds weight and cost without solving logistics. Composite cylinders were developed exactly to cut mass, allow embedded sensing, and survive outdoor exposure when the resin system is selected correctly.

A: Option B assumes single-phase gas behavior and ignores that LPG can flash if heat flux is insufficient. Option C confuses pressure dip with overpressure scenarios; reducing inlet pressure worsens flashing. Option D is a classic intuition trap from liquid heat exchangers, but boiling regimes don't reward higher mass flux without heat. When demand outruns heat input, liquid slips through and the fix is thermal or capacity, not throttling.

A: Option B belongs in crude units at elevated temperatures, not LPG treaters. Option C needs much higher temperature and hydrogen partial pressure than this service sees. Option D is exotic and tied to galvanizing mishaps during welding, not in-service degradation. Even at modest conditions, amine degradation products and heat-stable salts quietly eat carbon steel if materials and reclamation aren't addressed.