CATEGORY: ENERGY MANAGEMENT
Computers
& Chemical Engineering, Volume 56, 13 September 2013, Pages 68–79
Simultaneous study on energy consumption and
emission generation for an ethylene plant under different start-up strategies
Jie
Fu, Qiang Xu, Dan F. Smith
Department of Chemical Engineering, Lamar University, Beaumont, TX 77710, USA
Abstract
Chemical plant start-ups are critical dynamic
operations. They consume large amounts of energy and generate large quantities
of off-spec products for flaring, resulting in significant emissions. While a
number of studies have been conducted on energy savings or emission reductions
under plant normal conditions, quantitative studies on simultaneous energy
consumption and emission generation for chemical plant start-ups are still
lacking. Researchers used plant-wide dynamic simulations to study energy
consumption and emission generation for an ethylene plant under various
start-up strategies. \
They
conducted dynamic modeling and simulations for two start-up designs associated
with three start-up operating procedures. They obtained and analyzed dynamic
profiles of energy consumption and emission generation during the plant
start-up based on plant-wide dynamic simulations. Details of energy accounting
on cooling and heating duties of key distillation towers, auxiliary heat
exchanger duties, and power consumption for compressor system are provided for
each start-up case. Through comprehensive analysis, they have determined the
most desirable start-up solution. The virtual study not only characterizes the
emission generation during the plant start-up, supporting flare minimization
activities that benefits environmental sustainability, but also enhances
critical research on energy and raw material savings during the plant start-up
that will benefit the industrial sustainability.
Full Text Source (Subscription or Fee): http://www.sciencedirect.com/science/article/pii/S0098135413001671
No comments:
Post a Comment