August 2009

Columns

HP Water Management: Update on water treatment for ethanol plants

Several refiners have recently purchased ethanol plants; here are some insights into the water treatment issues in these plants. The unit operation with the most stringent water requirement is the low..

Huchler, L. A., MarTech Systems, Inc.

Several refiners have recently purchased ethanol plants; here are some insights into the water treatment issues in these plants. The unit operation with the most stringent water requirement is the low-pressure boiler (~ 150 psig) that provides steam to the fermentation unit, distillation unit and/or the evaporators: permeate from a reverse osmosis (RO) unit is suitable. These plants also require cooling water and will have a cooling tower. In most cases, ethanol plants are located near their feedstock source. In the US, over 95% of these plants use corn and are located in the central and northern Midwest. Most facilities use well water, although some plant owners may have a withdrawal perm

Log in to view this article.

Not Yet A Subscriber? Here are Your Options.

1) Start a FREE TRIAL SUBSCRIPTION and gain access to all articles in the current issue of Hydrocarbon Processing magazine.

2) SUBSCRIBE to Hydrocarbon Processing magazine in print or digital format and gain ACCESS to the current issue as well as to 3 articles from the HP archives per month. $409 for an annual subscription*.

3) Start a FULL ACCESS PLAN SUBSCRIPTION and regain ACCESS to this article, the current issue, all past issues in the HP Archive, the HP Process Handbooks, HP Market Data, and more. $1,995 for an annual subscription.  For information about group rates or multi-year terms, contact email Peter Ramsay or call +44 20 3409 2240*.

*Access will be granted the next business day.

Related Articles

From the Archive

Comments

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}