Process Application Definition
Process
compressors are typically used in petroleum, chemical and gas industry
services for handling process air or gas with either lubricated or non-lubricated
cylinders. These
are moderate speed compressors meeting the demands of API-618 for critical
service. API-618
has defined these compressor applications as having and expected uninterrupted
operation of at least 3 years (as a design criteria).
Process Compressors are separated
from Oil and Gas compressors by function and required maintenance intervals.
Oil
and Gas compressors are commonly driven by gas engines with maintenance
intervals of up to 18 months, determined by engine driver maintenance
intervals. Process
compressors are generally electric motor driven and require a longer interval
between maintenance.
Ariel has developed a line of
compressors to meet the demands for longevity and reliability dictated
within API-618. This
includes moderate speed application, low piston speeds, component design
and materials selections, piston wear band loading and emissions control
capabilities.
For applications guidelines on
the Ariel Process Compressor refer to the Process Table of Contents.
These generally include:
Excluded from Process Definition:
Lubricated natural gas services
Lubricated fuel gas boosters
with up to 50% hydrogen
Lubricated refrigeration
Lubricated air, nitrogen or
carbon dioxide
Non-lubricated fuel gas boosters
Ariel Corporation Process Application Manual
3 August 2004