HPCL Rajasthan Refinery in Pachpadra, India, has awarded the contract for four new cryogenic double wall storage tanks (DWST) to Chemie-Tech.
The 45 m diameter tanks will have a comibined capacity of 96,000 m3 and will store refrigerated ethylene and propylene. The outer tank will have an RCC post tension wall and the inner tank will be made from 9% nickel steel.
Under the terms of the engineering, procurement, construction and commissioning (EPCC) contract, Chemie-Tech will also construct the associated facilities such as the vaporisation system, BOG compressors, heating packages, cold-blowdown system and in-tank pumps. It will also be responsible for the tanks’ pile foundations, piping, electrical works, cathodic protection, instrumentation, firefighting system and associated accessories with statutory approvals.
The contract scope covers project management, residual process design, detailed design and engineering, procurement, construction, pre-commissioning and commissioning with single point responsibility of above ground, flat bottom, vertical, full containment type double wall storage tank.