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Topic: Acid gas

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	Acid Gas Removal Systems: Carbon-dioxide-equipment.com: Carbon dioxide equipment, carbon dioxide (CO2) generators and ...
		Typically, a stack gas system employs a patented solvent to recover CO2 from exhaust streams emanating from a boiler, an engine, a turbine, etc. The common characteristic is that the exhaust has from one to fifteen percent (1%-15%) oxygen in the exhaust stream.
		Gas treating is the absorption of acid gases such as carbon dioxide and hydrogen sulfide from natural gas, synthesis gas, refinery tail gas, and flue gas.
		The most important raw gas condition is the acid gas partial pressure (mole fraction of acid gas times the total pressure, usually expressed in mm Hg).
	www.carbon-dioxide-equipment.com /agr.html (1240 words)

	Acid Gas Removal Systems: Carbon-dioxide-equipment.com: Carbon dioxide equipment, carbon dioxide (CO2) generators and ...
		Typically, a stack gas system employs a patented solvent to recover CO2 from exhaust streams emanating from a boiler, an engine, a turbine, etc. The common characteristic is that the exhaust has from one to fifteen percent (1%-15%) oxygen in the exhaust stream.
		Gas treating is the absorption of acid gases such as carbon dioxide and hydrogen sulfide from natural gas, synthesis gas, refinery tail gas, and flue gas.
		The most important raw gas condition is the acid gas partial pressure (mole fraction of acid gas times the total pressure, usually expressed in mm Hg).
	www.wittemann.com /agr.html (1240 words)

	gas chamber, death, prison
		The history of the use of hydrogen cyanide gas for execution purposes and the development of the gas chamber is strictly a United States phenomenon.
		Gas Valve (10) is utilized as a seal for testing the integrity (pressure test) of the chamber, as well as, the mechanism for controlling the Cyanide Briquet (pellet) drop, while the actuator additionally controls the opening of the Gas Generator Vent Stack Valve (A).
		Hydrogen Cyanide gas is generated within the chamber due to the chemical reaction of the sodium cyanide and the sulfuric acid.
	www.angelfire.com /fl3/starke/gaschamber.html (4928 words)

	Greenhouse (CO2) and Acid Gas (H2S) Geological Sequestration (Site not responding. Last check: 2007-10-25)
		Greenhouse (CO2) and Acid Gas (H2S) Geological Sequestration
		Carbon Dioxide and Acid Gas (CO2 and H2S) Geological Sequestration in Alberta
		Develop methods and implement techniques for the assessment of CO2 sequestration in oil and gas reservoirs, deep saline aquifers and coal and salt beds.
	www.ags.gov.ab.ca /activities/CO2/CO2_main.shtml (213 words)

	Flatulence and Natural Remedy - Homeopathic Acid Reflux Gas Cure
		Flatulence is an excess of gas in the digestive tract, particularly the stomach and intestines.
		Some of the most notorious foods for producing excess gas are vegetables like cabbage, cauliflower and broccoli (cruciferous vegetables), beans, pulses and whole grains, carbonated beverages and most foods that are high in dietary fiber, especially refined fiber.
		is excellent for absorbing excess gas and toxins in the body and is particularly effective for individuals who suffer from indigestion, sporadic constipation and diarrhea, sour belching, wind and bloating.
	www.nativeremedies.com /gasolve-relief-flatulence-remedy.html (1529 words)

	Acid Gas Patent
		The purpose of the Acid Gas Absorption Process ("Process") is to eliminate atmospheric emissions thereby simplifying the permitting procedure and providing a safe, economical, and simple method of acid gas disposal.
		Amine plant acid gas is composed of primarily carbon dioxide (CO2) and/or hydrogen sulfide (H2S).
		The water was saturated with H2S at atmospheric conditions prior to mixing with the acid gas.
	www.beardengineering.com /patent.htm (552 words)

	Gay-Lussac and Thenard
		Even plumbago changed the latter gas into ordinary muriatic gas, that is to say, muriatic acid containing water; and since the most strongly ignited charcoal produces the same change, we must conclude that it is the hydrogen gas contained in these bodies which is the true cause of the change.
		Only nitrous gas when mixed with oxygenated muriatic gas slightly altered its colour, changing it to a slightly orange green; but this we doubt not should be attributed to a little water or oxygen, as we had remarked that the drier and purer these two gases were, the less marked was the change of colour.
		Vitreous boracic acid does not decompose either fused muriate of silver, or that of baryta, or that of soda, whilst, if vapour of water is made to pass, at a red heat, over a mixture of one of these salts and boracic acid, muriatic gas is disengaged very abundantly and borates are formed.
	web.lemoyne.edu /~giunta/thenard.html (2995 words)

	Acid Rain
		Acid rain affects the life in the water as well as the life on land.
		Acid rain also harms the soil that the trees are growing in by taking most of the valuable nutrients away from the soil.
		Acid rain also leaves a lot of aluminum in the soil, which can be harmful to the trees that grow there.
	library.thinkquest.org /CR0215471/acid_rain.htm (2087 words)

	Acid Gas - AcidGas (Site not responding. Last check: 2007-10-25)
		Acid gas or Sour gas, also sour acid gas or acid sour gas, is natural gas which contains up to 20% hydrogen sulfide contaminant by weight.
		Due to the presence of hydrogen sulfide, acid gas is toxic.
		Before this type of natural gas can be used, the acid gas is treated to remove the hydrogen sulfide, producing elemental sulphur as a by-product.
	www.kopete.org /Acid-Gas.html (88 words)

	The World Youth Manifesto Project
		Acid rain primarily affects sensitive bodies of water, located in watersheds whose soils have a limited ability to neutralize acidic compounds.
		Acid rain weakens trees by damaging their leaves, limiting the nutrients available to them, and exposes them to toxic substances slowly released from the soil, such as aluminum.
		Acid rain is a major problem in North America and is also a major concern in parts of Europe, particularly Scandinavia, and is a developing issue in China and other industrializing areas around the world.
	www.pwc.k12.nf.ca /cida/manifesto/acidrain.html (1683 words)

	Flue gas desulfurization Summary
		Flue gas desulfurization (FGD) is the current state-of-the art technology used for removing sulfur dioxide (SO) from the exhaust flue gases in power plants that burn coal or oil to generate the steam for the steam turbines that drive their electricity generators.
		In some ways this can be thought of as being similar to the reversable liquid-liquid extraction of an inert gas such as xenon or radon (or some other solute which does not undergo a chemical change during the extraction) from water to another phase.
		While a chemical change does occur during the extraction of the sulfur dioxide from the gas mixture, it is the case that the extraction equilibrium is shifted by changing the temperature rather than by the use of a chemical reagent.
	www.bookrags.com /Flue_gas_desulfurization (2368 words)

	ESENA:Technological Alternatives to Reduce Acid Gas and Related Emissions from Energy-Sector Activities in Northeast ...
		Acid gases can also be adsorbed to particles in the atmosphere, and fall as to the ground as "dry deposition" with particles or as ions, becoming acidic when wetted.
		Gas use in the sector, however, is constrained by the cost and infrastructural hurdles of supplying gas that were described above in the context of fuel-switching alternatives for electricity generation.
		This means that an effective effort to reduce acid gas emissions in the region must focus not only on these "big ticket" facilities, both existing and new, but also on the much smaller-sized equipment in the industrial, commercial, and transport sectors that produce, and will continue to produce, the lion's share of acid gas emissions.
	www.nautilus.org /archives/papers/energy/dvhtech.html (13902 words)

	Delta F Application Note No. 103 - Acid Gas
		Measurement of trace or percent oxygen in the presence of acid gases is among the more difficult applications required of on-line oxygen analyzers, because of the adverse effects that acid gases have on most oxygen-measuring cells.
		Second, if an acid gas is present, anions formed by the neutralization reaction are drawn to the anode where three possible reactions can occur.
		If the acid gas is carbon dioxide, carbonate anions are formed during the neutralization reaction with the electrolyte.
	www.delta-f.com /AppNotes/apnote3.htm (1667 words)

	John Davy
		The protoxide of antimony fused in the gas rapidly decomposed it; the butter of antimony and the infusible peroxide were formed; there was no change of the volume of the gas, and the residual gas was carbonic oxide.
		It is similar to acids in other respects; in decomposing the dry sub-carbonate of ammonia, one part in volume of it, expelling two parts of carbonic acid gas; and in being itself not expelled from ammonia by any of the acid gasses, or by acetic acid.
		Though the gas is decomposed by water, yet it appears to be absorbed unaltered by common spirits of wine, which contains so considerable a quantity of water; it imparted its peculiar odour to the spirit, and its property of affecting the eyes; five measures of the spirit condensed sixty measures of the gas.
	web.lemoyne.edu /~giunta/jdavy.html (1483 words)

	Blood Gas Text
		This acid is in the form of CO2, and after circulation to the lungs, is removed from the body in expired air.
		As this acid cannot be expired through the lungs as CO2 is, it remains in circulation, causing metabolic acidosis.
		In this case, acid buildup is due to acetoacetic and betahydroxybutyric acids.
	www.madsci.com /manu/gas_acid.htm (2425 words)

	Zyklon-B and the German Delousing Chambers
		Instead of blowing the hydrocyanic acid vapors to atmosphere through the vent pipe at the end of a typical fumigation cycle, the same gas could have been blown through another pipe into the “shower room” located approximately in the middle of the same building about 60 feet away.
		According to Müller, the “Zyclon B gas crystals”[19] were dropped, presumably from the outside of the chamber, into hollow perforated pillars with spirals.
		This is probably one of the main reasons why gas masks have to be worn in the gas chamber as part of the complex procedure for removing the body of an executed prisoner.
	www.nazigassings.com /zyklondelousing.html (8053 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-25)
		Whereas an acid gas is any gas that contains significant amounts of acidic gases such as carbon dioxide (CO) or hydrogen sulfide.
		Before a raw natural gas containing hydrogen sulfide and/or carbon dioxide can be used, the raw gas must be treated to remove those impurities to acceptable levels, commonly by an amine gas treating process.
		Processes within oil refineries or natural gas processing plants that remove mercaptans and/or hydrogen sulfide are commonly referred to as sweetening processes because they results in products which no longer have the sour, foul odors of mercaptans and hydrogen sulfide.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=acid_gas (255 words)

	Master Corporation - Acid Gas Disposal
		If the acid gas is high purity CO it is simply vented to the atmosphere.
		Since CO is a "greenhouse" gas, its release into the atmosphere may soon be restricted as a contributor to global warming.
		The process eliminates the need for a Sulfur Recovery Unit, does not require intermediate dehydration of the compressed acid gas and utilizes the SWD utility, common with most gas plants, needed to dispose of process and produced water.
	www.mastercorporation.com /acid_gas.htm (361 words)

	Barlow Projects, Inc. - Acid-Gas Scrubbing
		There, the reagent and fly ash are separated from the flue gas and retained on the outside of the filter bags.
		As the gas passes through the particulate cake on the bags, further reduction of the acid gas occurs during reaction with unspent reagent present in the filter cake.
		Collected fly ash and acid gas reaction by-products as well as untreated reagent are then discharged or re-circulated in the process by mechanical or pneumatic conveying systems.
	www.barlowprojects.com /430000.htm (234 words)

	First Full-Scale Application Set for Novel Morphysorb® Solvent
		Acid gases degrade the heating value of the natural gas and also can cause operational problems for pipelines that carry the gas to customers.
		The natural gas is then piped to DEGTC’s Pine River Gas Plant for final gas clean-up for pipeline transmission through Canada and the United States.
		Release of the acid gas taken up by the solvent is achieved by pressure reduction, in a process called “flashing”.
	www.gastechnology.org /webroot/app/xn/xd.aspx?it=enweb&xd=6newsroom/firstfullscaleapplicationsetfornovelmorphysorbsolvent.xml (596 words)

	Hydrogen Chloride
		In the laboratory, a mixture of Cuprous Chloride, and Hydrochloric Acid, is used for converting Benzene Diazonium Chloride, to Chlorobenzene, in the Sandmeyer Reaction.
		The gas is bubbled through water to remove any traces of hydrochloric gas that may be present and then it is dried by bubbling it through concentrated sulphuric acid.
		The gas is bubbled through Water, to remove any traces of Hydrochloric Acid gas, that may be present and then it is dried by bubbling it through concentrated Sulphuric Acid.
	www.ucc.ie /academic/chem/dolchem/html/comp/hcl.html (823 words)

	Faraday Lectures: Nitric Acid or Aquafortis -- Ammonia or Volatile Alkali -- Muriatic Acid or Spirit of Salt -- Chlorine
		Charcoal was oxidized to carbon dioxide, sulfur oxidized to sulfuric acid.
		Demonstrated the difference in the volume of a bottle of the gas and the volume of gas remaining undissolved when it is inverted over water thus illustrating the high degree of solubility.
		The mass of a standard volume of this gas was probably determined in the same manner as in Exp.
	www.woodrow.org /teachers/chemistry/institutes/faraday/lect4.html (1235 words)

	Acid Gas Injection - Epic Consulting Services Ltd. - Reservoir Engineering, Characterization and Simulation (Site not responding. Last check: 2007-10-25)
		As an alternative, Epic investigated the feasibility of injecting the acid gas into an abandoned portion of a producing reservoir.
		Of critical importance to the study was the breakthrough time of the acid gas after onset of injection.
		Combined with low solubility at high temperatures, the acid gas would immediately segregate to the top of the pinnacle structures into which the gas was being injected.
	www.epiccs.com /Acid.Gas.Injection.htm (175 words)

	Nitric Acid
		There is a very tiny bit of nitric acid gas in Earth's atmosphere.
		Nitric acid is one of the acids in acid rain.
		This nitric acid falls from the sky as acid rain.
	www.windows.ucar.edu /tour/link=/physical_science/chemistry/nitric_acid.html (224 words)

	Best Method for Hydrochloric Acid Gas
		Confirmation that it is muriatic acid comes when the top is taken off the bottle and the characteristic fog of acid vapor rises out of the bottle.
		If the sulfuric acid is not stirred, a layer of muriatic acid will form on top of the sulfuric acid and when the flask is moved for any reason the two layers will mix with violent release of HCl(g).
		The gas bubbler is another important part of the set-up because it allows visual evidence of how much gas is being produced and it removes any water vapor that might come over with the HCl(g).
	www.erowid.org /archive/rhodium/chemistry/hclgas.argox.html (2644 words)

	Faraday Lectures: Sulphur, Phosphorus, Carbon and their Acids
		A sample of gas is poured toward the audience until the odor is detected.
		Concentrated sulfuric acid is used to write on a white sheet of paper.
		dissolves and a gas remains equal in bulk to the oxygen - this is Carbonic acid gas.
	www.woodrow.org /teachers/chemistry/institutes/faraday/lect5.html (1199 words)

	Outotec - Sulfuric acid plants/off-gas handling
		For maximum sulfur-conversion efficiency, the sulfuric acid plant must be a total concept incorporating waste-water treatment, dust, slag, heavy metals and scrubbing acid equipment.
		Our sulfuric acid plants are tailor-made to meet customers' individual production needs and provide a good return on technological investment.
		We have been a major designer and supplier of sulfuric acid plants for more than 90 years, with an impressive track record of over 600 plants installed.
	www.outokumputechnology.com /pages/Page____6954.aspx (204 words)

	Gas Sector Jargon Buster
		A measure of the ability of a single fluid (such as water, gas or oil) to flow' through a rock formation when the formation is totally filled (saturated) with the single fluid.
		Acids are usually sour, corrosive and turn blue litmus red.
		In the onshore treatment plant, acid gas accumulates in the sulfinol unit (there is one unit on each LNG train), then it is vented to the atmosphere.
	www.energyweb.net /gas/jargon (665 words)

	Sound nutritional advice for excess stomach acid, excess gas and acid reflux
		More than 95% of people who think they are suffering from "acid reflux", excess gas and poor digestion are actually suffering from a triple threat I call S.A.D. or "The Standard American Diet." Here is what is most likely happening to you.
		This is not "acid reflux"; it's a gaseous eruption.
		If the gas is actually going in the proper direction but you have another undigested meal in your intestines blocking natures' passage, the pressure of the trapped gas can double you over in lower abdominal pain.
	www.shokos.com /ExcessStomachAcid-AcidReflux.htm (1294 words)

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