Why do tankers keep exploding?

chemical tanker explosionIn spite of ever-increasing safety regulations, explosion incidents on tankers still happen. Any explosion risk has three prerequisites: flammable material, oxygen and an ignition source. Take away (at least) one to achieve safety.

According to SOLAS requirements any tanker newbuilding > 8000dwt since 2016 has to have an inert gas system installed which reduces the oxygen concentration to safe levels. Before it was > 20,000 dwt. However, there is no requirement to retrofit IG systems to existing pre-2016 tankers, which means they are frequently subject to hazardous conditions.

In the Riviera Maritime Media article, “Why do tankers keep exploding?”, Dean Crossley, Loss Prevention Manager at WEST P&I Club recommends retrofitting IG systems to ALL tankers, oil & chemical, old and new ones, incl. those < 8000 dwt. However, retrofitting an IG system is nearly impossible for technical reasons, if not economic. NanoVapor may be a cost-efficient and simple option to prevent hydrocarbons from evaporation. Thus, taking away the flammable material.

Nanovapor is a safe, gas-freeing alternative to more traditional methods. Time needed to a gas-free fuel or cargo tank is dramatically reduced and a single application can continue to suppress fuel vapors for days. The NanoVapor delivery unit uses a compressed air source to create a high-flow air stream used to inject the suppressant molecules into an enclosed tank. The molecule suppressant works quickly to suppress VOC evaporation from all liquid fuel throughout the entire tank. See the NanoVapor product video at https://ecochlor.com/ecochlor-nanovapor-nano-suppressant/

NanoVapor Granted Lloyd’s Register Type Approval for High Speed Gas Freeing System

NanoVapor announced that its innovative Vapor Suppression System has received a product type approval certificate from Lloyd’s Register (LR).  The portable ST-1000 system weighs only 45 kg, has no moving parts, and is powered by compressed air. When used with its proprietary liquid nano-suppressant, the ST-1000 delivery unit can quickly gas free a tank up to 90% faster, even if residual fuel or sludge is present. Since normal oxygen level is preserved throughout the suppression process, the confined space is quickly made safe for entry. Only a tiny amount of the non-toxic and biodegradable nano-suppressant is needed, leaving no residue or waste to clean up.

Russell Chew, NanoVapor’s CEO, is very excited about bringing important safety and sustainability technologies to the marine transportation industry. “Our vapor management systems have been fully tested and successfully adapted for high speed gas freeing of fuel and petrochemical tanks of all sizes. The LR Type Approval now opens the door to extend our recognition as a ‘Best Practice’ gas freeing system for land-based tanks to vessels.”

At Marintec China 2019, Ecochlor introduced the ST-1000 delivery unit to the maritime industry. Their VP of Business Development, Andrew Marshall believes that this nanotechnology will, “revolutionize tank cleaning and gas freeing of cargo and bunker tanks in preparation for dry dock or unplanned tank inspections or maintenance.”

With the imminent IMO 2020 sulfur cap deadline, the NanoVapor technology can be used to facilitate faster tank cleaning procedures and allow vessels to resume normal operation as quickly as possible.

Contact nanovapor@ecochlor.com for more information.