Navigation Links
Thermochemical process converts poultry litter into bio-oil
Date:8/19/2007

Foster Agblevor, associate professor of biological systems engineering, is leading the team of researchers in the College of Agriculture and Life Sciences (www.cals.vt.edu) at Virginia Tech (www.vt.edu) developing transportable pyrolysis units that will convert poultry litter into bio-oil, providing an economical disposal system while reducing environmental effects and biosecurity issues.

Agblevor will present the research during the 234th American Chemical Society National Meeting in Boston on August 19-23.

Agblevor is working with poultry growers to test technology that would convert poultry litter to three value-added byproducts pyrodiesel (bio-oil), producer gas, and fertilizer. The pyrolysis unit heats the litter until it vaporizes. The vapor is then condensed to produce the bio-oil, and a slow release fertilizer is recovered from the reactor. The gas can then be used to operate the pyrolysis unit, making it a self-sufficient system.

More than 5.6 million tons of poultry litter are produced each year in the United States. The litter consists of a mixture of bedding, manure, feathers, and spilled feed. According to Agblevor, current disposal methods, such as land application and feeding to cattle, are under pressure because of pollution of water resources due to leaching and runoff and concern about mad cow disease contamination in the food chain. There are also concerns that poultry litter can harbor such diseases as avian influenza. While avian influenza is not harmful to humans, people can spread it on their shoes, with their vehicles, or through movement of litter.

The self-contained transportable pyrolsis unit will allow poultry producers to process the litter on site rather than having to haul the litter to a separate location, Agblevor said. In addition, the thermochemical process destroys the microorganisms reducing the likelihood of the transmission of disease to other locations.

Poultry litter from broiler chickens and turkeys and bedding materials (wood shavings or peanut hulls) were converted into bio-oils in a fast pyrolysis fluidized bed reactor.

According to Agblevor, bio-oil yields ranged from 30 to 50 percent by weight, depending on the age and the bedding content of the litter. Bedding material that was mostly hardwood shavings yielded bio-oil as high as 62 percent by weight. The higher heating value of the poultry litter bio-oil ranged from 26 to 29 mega joules per kilogram while bio-oil from bedding material was only 24 mega joules per kilogram. The bio-oils had relatively high nitrogen content ranging from 4 percent to 7 percent by weight, very low sulfur content, below 1 percent by weight, and were very viscous. The char yield ranged from 30 percent to 50 percent by weight, depending on the source, age, and composition of the poultry litter. The char also had a high ash content, ranging from 30 percent to 60 percent by weight, depending on the age and source of litter.

The type of poultry litter used will affect the amount and quality of the bio-oil produced and ultimately will impact the producers profitability, Agblevor said. Finding the right set of conditions for the poultry litter is key to the adaptation of this technology.


'/>"/>

Contact: Lori Greiner
lgreiner@vt.edu
540-231-5863
Virginia Tech
Source:Eurekalert

Related biology news :

1. Newly Discovered Branding Process Helps Immune System Cells Pick Their Fights
2. Virologists make major step towards understanding the process of HIV infection
3. Researchers pioneer new gene therapy technique using natural repair process
4. Studies reveal how plague disables immune system, and how to exploit the process to make a vaccine
5. Genomic sequences processed in minutes, rather than weeks
6. Multi-species genome comparison sheds new light on evolutionary processes, cancer mutations
7. Most important actors in the growth process of neurons identified
8. Carnegie Mellon University research reveals how cells process large genes
9. Elderly mice yield clues to the process of growing old
10. Insight into the processes of positive and negative learners
11. New processing method reduces peanut allergenicity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/24/2016)... Cercacor today introduced Ember TM Sport ... non-invasively measure hemoglobin, Oxygen Content, Oxygen Saturation, Perfusion ... in approximately 30 seconds. Smaller than a smartphone, using ... to key data about their bodies to help monitor ... Hemoglobin carries oxygen to muscles. When hemoglobin ...
(Date:11/19/2016)... 18, 2016 Securus Technologies, a leading provider ... safety, investigation, corrections and monitoring, announced today that it ... to have an independent technology judge determine who has ... high tech/sophisticated telephone calling platform, and the best customer ... do most of what we do – which clearly ...
(Date:11/15/2016)...  Synthetic Biologics, Inc. (NYSE MKT: SYN), a ... gut microbiome, today announced the pricing of an ... common stock and warrants to purchase 50,000,000 shares ... the public of $1.00 per share and accompanying ... offering, excluding the proceeds, if any from the ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... -- According to the new market ... Instruments, Automated Cell Expansion System), Cells Types (Human, ... Cancer, and Cell-Based Research), End-users (Biopharmaceutical and Biotechnology ... Trends, Growth, Share, Size and Forecast to 2022", ... expansion market is expected to reach USD 18.74 ...
(Date:12/5/2016)... Mich. , Dec. 5, 2016 NxGen MDx announced today ... bringing the test in house, we,ve been able to improve customer service ... for patients," says Alan Mack , CEO of NxGen MDx. ... , , ... test volume has led to more job opportunities at the Grand Rapid ...
(Date:12/5/2016)... -- The U.S. Biotechnology industry is the ... revenue and some $890 billion of total market value. In ... and this figure is expected to exceed $220 billion ... four equities for assessment: Northwest Biotherapeutics Inc. (NASDAQ: ... ACAD ), Acorda Therapeutics Inc. (NASDAQ: ACOR ...
(Date:12/4/2016)...  In five studies being presented today during the ... Exposition in San Diego , researchers ... delivery of life-saving treatments to patients with a variety ... carry therapies directly to the sites in the body ... substantial advantage over traditional, systemic methods. The studies highlight ...
Breaking Biology Technology: