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United States Department of Agriculture

Agricultural Research Service

Research Project: LARGE FACTORY STUDIES ACROSS THE SEASON TO DETERMINE HOW DIFFERENT LEVELS OF TRASH IMPACT UPSTREAM AND DOWNSTREAM PROCESSING Project Number: 6435-41000-103-06
Project Type: Trust

Start Date: Aug 01, 2009
End Date: Aug 01, 2012

Objective:
To conduct large factory trials across the Louisiana processing season to determine how different levels of trash impact upsteam and downstream processing. The trials will provide crucial knowledge on what levels and types of trash are impeding the manufacture of VHP/VLC sugar for the new LA refineries, what the critical level of trash that causes VHP/VLC sugar to be produced over raw sugar, and also provide optimum ground and fan speeds to control the levels of processed trash for VHP/VLC sugar manufacture that is of economical benefit and satisfactory to both parties.

Approach:
Different harvest treatments from the same commercial field of ripener-treated sugarcane (same variety per trial) will be evaluated. At least 3 treatments of green billets subjected to different combinations of extraction fan and ground speeds on a newer model combine harvester designed for green harvesting. Each harvest treatment will have 2 reps that will be delivered to the factory on the same day; each rep will represent -50 short tons. Four random grab samples (-35 lb) will be collected from each treatment rep in the cane yard, and separated into different tissues and weighed. Factory core lab results will be obtained for each treatment rep as well as the direct analysis of shredded cane (DAC) randomly removed from the factory conveyor belt. Tandem milling rates, etc., and any chokes will be monitored at the factory. After the whole tandem mill has first been purged with part of the treatment supply, composite mixed juice (MJ) and bagasse samples will be collected at the factory. The MJ will then quickly transported to New Orleans and processed across the SRRC sugar processing pilot plant into clarified juice, syrup, massecuite, molasses, raw and affinated VHP sugar. The factory trials will be repeated three times across the season to cover environmental variations.

Last Modified: 12/22/2014
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