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Terry Spittler, research and development director of New Earth, and Cornell University professor, Gary Harman, chief scientific officer of New Earth, and their hydrogen sulfide separation technology test system. The biogas is injected into the bottom of the barrel and a special medium is formed by the excrement. When the biogas passes through the medium, the hydrogen sulfide removed will be removed.
According to the Environmental News Network, a botany scientist at Cornell University in New York, USA, has developed a new approach that allows the separation of hydrogen sulfide (Hydrogen Sulfide), a toxic substance in biogas, from manure and other farm by-products. Biogas itself is a kind of renewable energy resource that is decomposed from animal excrement. After removing hydrogen sulfide, biogas will be more environmentally friendly.
Those who have studied chemistry know that hydrogen sulphide forms acid rain when it meets water, and acid rain may corrode machine engines. Therefore, separating hydrogen sulfide from biogas means that biogas will become a more practical alternative fuel source. According to the Environmental News Network, this technology for separating hydrogen sulfide from biogas will be promoted on the market in the name of SulfaMaster.
The Cornell University New York State Agricultural Experiment Station in Geneva, New York, is well known in agriculture and botany. Gary Harman, professor of plant biology at the lab, and Terry Spittler, retired analytical chemist at Cornell University, at Cornell Agriculture and Food Technology Park in Geneva. ) Founded a small company, the company named "Terrenew" will be responsible for the marketing of "sulfur master" technology. In addition, the company is also responsible for the promotion of two other products used to clean up environmental contaminants. These two products are also used to clean up environmental pollutants, such as the use of agricultural waste to separate oil and heavy metals from water.
Professor Harman said: "The 'master sulfur control' has great potential for the application of small bio-energy production plants located throughout the United States."
There are about 9 million cows in the United States. Each cow produces about 120 pounds (1 pound or 0.4536 kilograms) of manure per day. As a result, biogas has become a major energy resource for many sustainable farms. The conversion from animal dung to biogas requires an anaerobic digestion process, which is the process by which microorganisms decompose feces and other organic matter in anoxic conditions. After anaerobic decomposition, the resulting biogas contains a large amount of methane and carbon dioxide, as well as a small amount of hydrogen sulfide. Most methods for separating hydrogen sulfide require expensive industrial purifiers, and small farms are unlikely to own such purifier equipment. Harman said: "In most cases, this type of (hydrogen sulphide separation) method is mainly applicable to large-scale refineries and is not suitable for small-scale farms."
In addition, the "New Earth" company's hydrogen sulfide separation process uses feces as a major component of a special medium. Harman explained: "Their method is to put this special medium in a wooden barrel first." Then the biogas is filled into the bottom of the barrel. When the biogas passes through the special medium in the barrel, the hydrogen sulfide in the biogas is It was removed," Harman explained. The remaining (with carbon dioxide) clean methane can be used as an energy source. â€
Harman estimates that the special medium for hydrogen sulphide used in this “master Sulfur Control†can be reused six times and then replenished with this special medium in the biogas mixture. In addition, the "master sulfur control" technology is not limited to use on the farm. Biogas is also common in sewer processing plants and landfills, especially in places where construction and demolition waste are received. These sites can get cleaner biogas and provide energy directly to the operation of their factories.
New Earth raised some funds from the New York State Energy Research and Development Authority and showed positive results for the dehydrogenation of H2S products in the El-Vi farm area of ​​Phelps in New York last summer. . The company intends to do another experiment before removing “sulfur masters†from the market to remove hydrogen sulfide from biogas in landfills. Earlier, Cornell Center for Technology, Enterprise & Commercialization applied for a patent and business license for the company's hydrogen sulphide removal technology.
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