Download or read book Hydrogen Sulfide Removal from Biogas with a Fixed Bed of Rusted Iron Turnings written by Carlos Gonzalo Cañas and published by . This book was released on 1986 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removing Hydrogen Sulfide from Synthesis Gas with Iron Oxide at Elevated Pressure written by Glenn E. Johnson and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Hydrogen Sulfide from Biogas Using Cow manure Compost written by Steven McKinsey Zicari and published by . This book was released on 2003 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogen Sulfide Removal from Biogas Using a Salak Fruit Seeds Packed Bed Reactor with Sulfur Oxidizing Bacteria as Biofilm written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Anaerobic Digestion of Yard Waste and Biogas Purification by Removal of Hydrogen Sulfide written by Phil Boone Cherosky and published by . This book was released on 2012 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Lignocellulosic biomass feedstocks, in particular yard waste, are highly desired for anaerobic digestion as they are widely available and tipping fees are commonly associated with disposal. The high concentration of lignin presents a major challenge for utilizing yard wastes as a feedstock for anaerobic digestion. Therefore, additional steps are necessary to increase the biodegradability of yard waste. The initial focus of this study was to test two potential methods for increasing the methane production of yard waste: pretreatment and co-digestion. Sodium hydroxide (NaOH) pretreatment was studied at NaOH concentrations of 3% and 5%. It was found that 3% NaOH pretreatment had no significant improvement on methane production while 5% NaOH pretreatment had a significant negative effect on methane production. The second method studied was co-digestion of yard waste and food waste. Co-digestion at a ratio of 75% food waste and 25% yard waste showed a four-fold increase in methane yield compared to digestion of 50% food waste and 50% yard waste and a two-fold increase in methane production compared to digestion of 100% food waste. Anaerobic digestion of food waste containing protein and other sulfur containing substances produces hydrogen sulfide in biogas. Hydrogen sulfide (H2S) in biogas causes corrosion of metal components such as regulators, gas meters, valves, and mountings. Combustion of biogas containing H2S produces poisonous sulfur dioxide (SO2). The SO2 also dissolves in engine oil causing the oil to become acidic and lose its ability to lubricate. One method for H2S removal involves using hydrated iron oxides supported on a media comprised of wood chips or wood shavings. The iron oxide reacts with the H2S in the gas to form iron sulfide and water. This method is called an iron sponge. The second focus of this study was to test hydrogen sulfide removal using the iron sponge method. The first goal was to determine the optimum operating parameters of an iron sponge system. Using ground yard waste, ideal operating parameters for the iron sponge were determined to be 0.1875" particle size and 15%-25% moisture content. Moisture was found to be a critical factor in the operation of the H2S scrubber system. Optimum moisture content varies with particle size and the materials' ability to absorb water. The iron sponge needs water to properly facilitate H2S conversion to Fe2S3, but high moisture can be problematic. The second and primary goal of this research was to develop and test iron sponge materials using alternative media to the commercial material, SulfaMasterTM, and to identify those with equal or superior performance. An iron sponge using digested yard waste from an anaerobic digester as a media material at 25% moisture was determined to be an ideal alternative to the SulfaMasteTM material removing 90% of the hydrogen sulfide in biogas at initial levels near 1000ppm H2S. The digested yard waste had similar performance to SulfaMasterTM and is an inexpensive substitute. Ground yard waste at 0.1875" particle size performed similarly but results were more erratic. Spent tobacco was not an effective medium for the iron sponge.
Download or read book A New Method to Evaluate Hydrogen Sulfide Removal from Biogas written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen sulfide in biogas fuel increases the speed at which the system utilizing the biogas corrodes. This corrosion may be prevented by separating and removing hydrogen sulfide from the biogas. There are multiple technologies available to remove hydrogen sulfide (such as the gas-gas membrane tested in this thesis); however, evaluating the effectiveness of hydrogen sulfide removal in an inexpensive manner is difficult to do. A device was constructed capable of a virtually simultaneous high precision volumetric flow and concentration measurements on moving biogas. The volumetric flow was measured by sampling the pressure from the center of two different points along a rigid tube and correlating pressure sensor voltage to the maximum velocity measured with a velocity probe. The hydrogen sulfide and methane concentrations were measured using chemical gas sensors. A mass balance was completed around a reverse selective membrane system with the calculated difference between flows based on known input and measured output concentrations coming within 15% of each other. Though the volumetric flow measurements were in doubt, this device was able to determine that using a 20 cm2 polyamide membrane under low pressures suitable for a digester (2 PSI) will increase methane concentration in biogas from 60% to 62% but is not effective at removing 1000 ppm of hydrogen sulfide. This device was primarily designed for determining the feasibility of adapting a membrane system to a farm scale biogas generation process.
Download or read book Studies on Hot Gas Hydrogen sulfide Removal Sorbents in Fixed bed Reactors at High Temperatures written by Miguel Jorge Bagajewicz and published by . This book was released on 1992 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Method to Evaluate Hydrogen Sulfide Removal from Biogas written by Jerry Hughes Martin and published by . This book was released on 2008 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: Bioenergy, Biogas, Animal Wastes, Anaerobic Digestion, Agricultural Waste, Selective Permeability, Methane Production, Methane, Energy Recovery, Hydrogen Sulfide, Membrane.
Download or read book Micro aeration for Hydrogen Sulfide Removal from Biogas written by Thanapong Duangmanee and published by . This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operating Conditions for Hydrogen Sulfide Removal from Biogas in a Pig Farm written by and published by . This book was released on 2009 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biogas Energy written by Tasneem Abbasi and published by Springer Science & Business Media. This book was released on 2011-11-03 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the importance of biogas energy has risen manifold and has become universal. This is due to the realization that biogas capture and utilization has great potential in controlling global warming. By capturing biogas wherever it is formed, we not only tap a source of clean energy, but we also prevent the escape of methane to the atmosphere. Given that methane has 25 times greater global warming potential than CO2, methane capture through biogas energy in this manner can contribute substantially towards global warming control.
Download or read book The Handbook of Biogas Utilization written by Charles C. Ross and published by . This book was released on 1996 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a single source of information needed to help.0 guide industry in its choice of technologies for cost effective utilization of the biogas from anaerobic treatment systems. It is not designed to provide a how-to approach to biogas utilization design. Rather, it is intended as a technical resource for those interested in biogas applications. Contents: biogas sources and characteristics; biogas properties; conversion; handling and storage; instrumentation and controls; health, safety and environmental considerations; and system economics. Vendor listings.
Download or read book Biogas from Waste and Renewable Resources written by Dieter Deublein and published by John Wiley & Sons. This book was released on 2008-04-18 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written as a practical introduction to biogas plant design and operation, this book fills a huge gap by presenting a systematic guide to this emerging technology -- information otherwise only available in poorly intelligible reports by US governmental and other official agencies. The author draws on teaching material from a university course as well as a wide variety of industrial biogas projects he has been involved with, thus combining didactical skill with real-life examples. Alongside biological and technical aspects of biogas generation, this timely work also looks at safety and legal aspects as well as environmental considerations.
Download or read book The Biogas biofertilizer Business Handbook written by Michael Arnott and published by . This book was released on 1984 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Onsite Wastewater Treatment Systems Manual written by and published by . This book was released on 2002 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This manual contains overview information on treatment technologies, installation practices, and past performance."--Introduction.
Download or read book Principles of Food Sanitation written by Norman G. Marriott and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large volume food processing and preparation operations have increased the need for improved sanitary practices from processing to consumption. This trend presents a challenge to every employee in the food processing and food prepara tion industry. Sanitation is an applied science for the attainment of hygienic conditions. Because of increased emphasis on food safety, sanitation is receiving increased attention from those in the food industry. Traditionally, inexperienced employees with few skills who have received little or no training have been delegated sanitation duties. Yet sanitation employees require intensive training. In the past, these employees, including sanitation program managers, have had only limited access to material on this subject. Technical information has been confined primarily to a limited number of training manuals provided by regulatory agen cies, industry and association manuals, and recommendations from equipment and cleaning compound firms. Most of this material lacks specific information related to the selection of appropriate cleaning methods, equipment, compounds, and sanitizers for maintaining hygienic conditions in food processing and prepara tion facilities. The purpose of this text is to provide sanitation information needed to ensure hygienic practices. Sanitation is a broad subject; thus, principles related to con tamination, cleaning compounds, sanitizers, and cleaning equipment, and specific directions for applying these principles to attain hygienic conditions in food processing and food preparation are discussed. The discussion starts with the importance of sanitation and also includes regulatory requirements and voluntary sanitation programs including additional and updated information on Hazard Analysis Critical Control Points (HACCP).
