Cotton farming ginners marketplace october 2017 by One Grower Publishing

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Ginners Marketplace COTTON FARMING IS THE OFFICIAL PUBLICATION OF THE GINNING INDUSTRY.

Cotton Gin Trash Finds New Life In Power Production Northern Lucus Apr 14 R_CF 11/13 template 3/7/14 3:26 PM Page 1

Finding sustainable markets for gin trash, wood chips and other waste products could be viable in producing more electrical power for a growing global population, according to researchers. A demonstration was held recently on the campus of Texas A&M University in College Station showcasing a biomassfueled fluidized bed gasifier, using cotton gin trash and wood chips to power an electric generator. The fluidized bed gasification system was developed in the 1980s when a patent was issued to Drs. Calvin Parnell Jr. and W.A. Lepori, who were both part of the Texas Agricultural Experiment Station, now Texas A&M AgriLife Research. Cotton gin trash and other biomass feedstocks have been used as fuel to generate heat energy for power production. The technology has been a focal point for Dr. Sergio Capareda, a Texas A&M AgriLife Research agricultural engineer in the department of biological and agricultural engineering at Texas A&M. He researched the technology while working on his graduate degree during the late 1980s. Parnell and Lepori were Capareda’s graduate advisers.

From left, Drs. Calvin B. Parnell Jr., Sergio Capareda and W.A. Lepori have conducted work with a fluidized bed gasification system that uses cotton gin trash and wood chips to generate power.

The Gasiﬁcation Process Cotton gin trash is produced in abundance at cotton gins across Texas and usually left unused, Capareda says. During harvest season, piles of cotton gin trash can be found at gins

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throughout the state. “The process is gasiﬁcation,” Capareda says. “We limit the amount of air to thermally convert the biomass so the products are combustible gases. These are collectively called synthesis gas. Carbon monoxide and hydrogen, plus a little methane and ethlyene, are a combustible mixture. Combustible in a sense that you can feed it into an internal combustible engine coupled with a generator so you can turn this fuel into electrical power. “It’s easier said than done, because you have to remove the biochar and all the tar in the syngas before it goes into the engine. We have cleaned up the gas very well in this technology.” The technology converts biomass into electrical power, making it an attractive opportunity for the ag, processing industry and electric utilities.

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Dry And Consistent Are Key “For this particular demonstration, we used the conversion of cotton gin trash into electrical power,” Capareda says. “We also used wood waste and turned it into electrical power. With the price of electrical power at 10 cents per kilowatt-hour, the economics are very simple. If you run a 1 megawatt system and sell power for 10 cents per kilowatt an hour, your gross revenue is $1 million. If you ﬁnd some countries overseas where power is very high, this technology is very attractive.” Capareda says the biomass used in the system has to be consistent, meaning whether you are using cotton gin trash or wood chips, it has to be relatively dry

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Lummus Corporation has available the following quality, high-capacity used gin machinery. All machinery is offered “as is, where is” (unless noted otherwise) and is subject to prior sale. “As is” machinery can be repaired/reconditioned for an additional charge. 1 – Consolidated 96” R-5000 Stick Machine* 2 – Consolidated 120” R-5000 Stick Machines* 1 – Lummus 60” overshot Standard Battery Condenser* 1 – Consolidated 72” undershot Standard Battery Condenser* 1 – Consolidated 72” undershot MC Battery Condenser* 1 – Belt-Wide 75-HP Flooded-Suction Hydraulic Booster Pumping Unit

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1 – Lubbock Electric Hydraulic Pumping Unit for Gin Dor-Les® or E.E. Dor-Les® Press (single reservoir with multiple motor/pump groups)

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and clean without soil, rocks or metals. “That’s how you begin, make sure it is dry and consistent,” he says. “Then you can run this system 24/7. We need 1.5-2 tons per hour or about 36 tons a day to generate 1 megawatt depending on the type of biomass. High-energy content biomass would need a little less than that. It also depends on heating value and moisture content of biomass.” Bob Avant, director of corporate relations for AgriLife Research, says, “(This technology) has taken a very evolutionary approach going from a very basic system to one that is computerized. We’re very excited about it and think it has some good applications. We have a number of very big companies interested in this intellectual property.” To see the system in action, check out the YouTube video: https://youtu.be/1W7er2YaLRk.

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Blair Fannin, who authored this article, is a media relations specialist with Texas A&M AgriLife Communications. Contact him at 979-845-2259 or b-fannin@tamu.edu. Contact Dr. Sergio Capareda at 979-458-3028 or scapareda@tamu.edu.

Contact Sales Manager Scott Emerson 386-462-1532 • semerson@onegrower.com

Cotton’s Calendar 2017 ■ Oct. 11: Plains Cotton Growers Inc. Board Meeting, Bayer Museum of Agriculture, Lubbock, Texas ■ Oct. 18: Plains Cotton Cooperative Association Board Meeting and Delegate Body Meeting, Lubbock, Texas ■ Nov. 15: PCCA Board Meeting, Lubbock, Texas ■ Dec. 5-6: Texas Plant Protection Conference, Brazos Center, Bryan, Texas

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