Blabo® Automated Tank Cleaning ExxonMobil 2009 Article Electrical standards Designed for operation in hazardous areas. Constructed for zone 1, and some equipment even for zone 0. Equipment complies with local regulation. Europe: ATEX directive. Other standards (e.g. CSA/UL) can be complied with by request. Mechanical standards Design: Follows the regulations for pressurized piping. Piping: European standards: Machine Directive 89/392/EEC and Pressure Equipment Directive, PED, 97/23/EC. Other standards can be complied by request. Production: Follows The Construction Standard.

Inside the tank and on the roof 1Tank roof Tank roof is zone 1 area. All Oreco‘s tank roof equipment’ with a potential ignition source is category I approved according to ATEX. 2Cold tapping tool - SafeTap Designed in accordance with the European standard EN Is certified as category 1/2 equipment. Tested at approved by notified body. 3Distribution header Approved for zone 1. 5Tank blanketing Inerting eliminates the risk of ignition. Inerting is covered by ATEX 1999/92/EC. Tank owners’ or service providers’ responsibility to ensure inert atmosphere. 4Nozzles Certified as category I equipment, according ATEX 94/97EC. Approved by notified body. Operation of nozzles is covered by ATEX 1999/92/EC for work in potentially explosive atmospheres. 1 · 2 · Tank roof Sump Inerting BLABO Watch Nozzle Demo

Blabo® Process Modules 7Pressure piping Constructed in accordance with EU directive 97/23/EC for pressurized equipment. Non destructive test (EN ). Unique tracking number and material certificates. 6Piping Has no potential ignition source and do therefore not fall within ATEX. User must ensure piping is safely earthed. BLABO’s Victaulic piping and couplings are clam-fitted to ensure 100% conductivity. 8Electronic cabinets Re-circulation & Separation modules Recirculation and Separation modules. Designed and built according to EN (Electrical apparatus for potentially explosive atmospheres - pressurized apparatus ‘p’). Verified and tested according to ATEX directive 94/9/EC. 10 Gas detectors Approved as at lease category II equipment. Fulfil requirements in standards EN and EN Electronic cabinets Suction & Skimming modules Designed and built according to EN (Electrical apparatus for potentially explosive atmospheres - flameproof enclosure ‘d’). Verified and tested according to ATEX directive 94/9/EC.

Blabo® Process and system in general 11Temperature Insulated pipes, valves and flange connections. Surface temperature does not exceed 55˚C. 12All moving parts Moving parts protected by covers. Cannot be opened without tools. Risk assessed according to EU directive 98/37/EC for machinery safety. 13Electrical equipment As minimum zone I approved. Constructed in accordance with EN (requirements for electrical apparatus in explosive atmospheres). 14Monitoring and Auto-shut down Continuous monitoring. Built-in warning systems. Monitoring of oxygen level. Shut-down of process if oxygen level exceeds 8%. Shut-down of process if LEL exceeds 20%. 15Closed loop Tank cleaning media runs in a closed circuit. Operators never get into contact with the media. 16Non-man entry Risk of sparks due to high activity inside tank is eliminated.

Other Personal Safety Measures 19Other personal safety and health issues No staff is exposed to toxic or carcinogenic substances. No respiratory problems or oxygen deficiency. No injuries caused by inadequate lightning or structural tank failure. Containers are equipped with gas detectors. Insulated pipes, valves and flanges. Etc. 17Training Thorough training by Oreco in operating the system. Thorough training in safety procedures. 18Non-man entry No personnel inside tank during cleaning process.

Is the BLABO® system suitable for your tanks? For difficult-to-clean tanks such as Tank capacityTank Diameter Crude oil Heavy fuel oil (HFO) Heavy gas oil (HGO) Ballast water Catalytic cracker residue Slop oil Rail tanker etc. Up to 200,000m (Up to 1,240,000bbl) 30 – 100+ m (98 – 308+ ft) Benefits of the BLABO® technology