Peter Brotherhood - the Peterborough, UK, based supplier of engineered
equipment for the petrochemical and process industries - has just
delivered two innovative compressor packages to a Chinese refinery
under a £1.52 million ($2.2 million) contract.
The machines were ordered by Sinopec
International E & M Trade Company for installation at the
Changling Petrochemical Company refinery at Changling in China's
southern Hunan province.
Each package is based around what
appears to be a single four-cylinder reciprocating compressor - but
two cylinders of each machine will handle hydrogen make-up gas whilst
the other two simultaneously handle hydrogen recycle gas for diesel
Each compressor is designed to meet
the refinery’s total make-up and recycle gas requirement. Having two
such machines will therefore ensure continuous availability for this
critical application because one machine can be on stand-by while the
other is operating.
Conventionally this type of
requirement would be met with two medium-sized reciprocating
compressors to handle make-up gas (one running and one on stand-by).
The recycle gas would be handled by a single centrifugal compressor,
which would have to be backed up with a full set of spares (including
a spare rotor).
Opting for Peter Brotherhood’s
solution of two large reciprocating compressors, each capable of
handling the full make-up and recycle load, will provide a higher
level of reliability at a lower initial cost and with lower power
demand than the more conventional solution.
These machines are larger versions of
two supplied for the same application at Yanshan Refinery during 2000.