Trading silicon for carbon: how to reduce energy usage through automation
The average plant can conservatively achieve 15% energy savings through this technology
Energy is the largest variable operating cost after raw
materials for most of the process industries and its efficient
use is key to sustaining profitable operation. Natural gas is
the most common incremental fossil fuel and its general
increase in price and in price volatility over the past few
years are well known with most experts projecting these trends to continue
in the future. Table 1 gives typical specific energy usage
(Btu/t product) for common processes1 and the value
of a 10% energy reduction in terms of increased financial
operating margin at an energy price of $7 per million Btu
(mBtu). This value is a significant portion of the total
operating margin for most of these processes.
In addition to the direct energy price, it seems likely that
the US will eventually adopt some regulations regarding
greenhouse-gas emissions. If the regulations in
other countries are a guide, these may take the form of a "cap
and trade" on CO2 emissions.
To continue reading please, log in to hydrocarbonprocessing.com.
Subscribe now for premium access and unlimited access to the site, including archived articles and the process handbooks. Start a free trial to gain access to articles from the current issue of Hydrocarbon Processing.
Already have an account?
Subscribe today and gain unlimited and immediate access to the site. Plus, you'll receive the next 12 issues of the magazine in your choice of print or digital format. Start your subscription today.
Start a free trial and gain immediate access to the current issue of the magazine plus additional, select content.
30 Day Trial