Feasibility studies on cleaning of high sulfur coals by
· Feasibility studies on cleaning of high sulfur coals by using ionic liquids can cause ash deposition and erosion damage to the boiler tube. The acid dew point of flue gas is also determined by loaded into a vacuum chamber (base pressure of 1 9 10-8
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Claus processencyclopedia articleCitizendium
· The Claus process is a catalytic chemical process for converting gaseous hydrogen sulfide (H 2 S) into elemental sulfur (S). The process is commonly referred to as a sulfur recovery unit (SRU) and is very widely used to produce sulfur from the hydrogen sulfide found in raw natural gas and from the by-product sour gases containing hydrogen sulfide derived from refining petroleum crude oil and
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Study of die break strength and heat-affected zone for
· This paper focuses on identifying the laser characteristics attributes and process factors that impact the mechanical flexural strength of ∼50 μm silicon substrates. Heat-affected zone (HAZ) is a term used to encompass the damage caused to a material during and after irradiance by a laser pulse. The impacts to die strength for laser induced HAZ are understood to be related to HAZ size and
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Sulfur Operations SupportSultrap
· Sulfur dioxide can be produced externally and injected into a thermal reactor reaction vessel or at any location where hydrogen sulfide is present. This process can significantly increase the capacity of a Claus and tail gas unit. This procedure also reduces the cost for new plant sulfur recovery unit applications by eliminating the
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STUDIES ON SULFUR RECOVERY PLANT
Sulfur recovery is a core process in both midstream and downstream oil and gas industries. Changing the feed composition temperature and pressure degrading the equipment and catalysts suboptimal operations due to inadequate control of temperature pressure and air flow rate are some of the obstacles which reduce the performance of the sulfur recovery units.
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Sulfur Recovery Unit Equipment — Sulfur Recovery
· Claus Reactors contain Alumina and/or Titania catalyst that must be protected from Claus contaminants/poisons thermal shock (sulfur fires) amine condensed water liquid sulfur and soot. Claus catalyst can be permanently poisoned by BTEX heavy hydrocarbons amine and methanol. Thermal shock from sulfur fires as well as condensed water and
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Pumping Molten Sulfur A Challenge for Pump Design
· When designing a pump for molten sulfur it is important that the properties of sulfur are taken into consideration. Due to the abnormal variation of viscosity with temperature sulfur can only be pumped satisfactorily within the °F ( °C) range. Most pumps
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Characterization of Claus Plant Emissions
The capacity of u.s. plants to re- cover sulfur from hydrogen sulfide increased 40 from 1 659 000 long tons/year (LT/YR) at (he end of 1961 to 2 737 000 LT/YR at end of 1967. At year-end 1968 ihc capacity of 3 036 000 LT/YR will be nea-.l/ double the 1961 recovered sulfur capacity.
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Natural Gas Processing Unit Modules Definitions
· The "Claus Process" in the 2 most common method used is the recovery of elemental sulfur. The "Claus" technology consists 3 of a thermal stage (combustion chamber waste heat boiler) and two or three catalytic reaction 4 stages (reheater reactor and condenser). The sulfur produced in the thermal
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THERMAL OXIDIZERSBanks Engineering
· · Claus sulfur recovery plants generate a waste gas containing H2S CO water vapor and inert gases. Waste flow is steady. Waste flow is steady. TOX operation ranges from 1200 o F to 1500 o F with furnace retention time of 0.6 to 1.0 second.
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minerals epsomite mirabilite and natron under Europa
Thermal and radiation stability of the hydrated salt minerals epsomite mirabilite and natron under Europa environmental conditions Thomas B. McCord 1 Thomas M. Orlando 2 3 Glenn Teeter 2 Gary B. Hansen 1 Matthew T. Sieger 2 4 Nikolay G. Petrik 2 and Lisa Van Keulen 1 Abstract.
Get PriceThermal damage of sulfur processed chamber under Claus
The claus reaction is industrially important process to recover sulfur from corrosive acid and sour gases. To achieve claus reaction high temperature reactor is utilized under controlled conditions. The Claus combustion reaction heater made of 94 alumina refractory bricks were damaged under ideal equilibrium operating conditions.
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Speciation of organosulfur compounds in carbonaceous
· The found signals belong mainly to pure hydrocarbons (CH-class 13 ) oxygenated organics (68 CHO x) and Sulphur-species (4 CHS x ). Other
Get PriceSulfur Recovery Unit Equipment — Sulfur Recovery
· Claus Reactors contain Alumina and/or Titania catalyst that must be protected from Claus contaminants/poisons thermal shock (sulfur fires) amine condensed water liquid sulfur and soot. Claus catalyst can be permanently poisoned by BTEX heavy hydrocarbons amine and methanol. Thermal shock from sulfur fires as well as condensed water and
Get PriceSulfur Operations SupportSultrap
· Sulfur dioxide can be produced externally and injected into a thermal reactor reaction vessel or at any location where hydrogen sulfide is present. This process can significantly increase the capacity of a Claus and tail gas unit. This procedure also reduces the cost for new plant sulfur recovery unit applications by eliminating the
Get Price
Sulfur Operations SupportSultrap
· Sulfur dioxide can be produced externally and injected into a thermal reactor reaction vessel or at any location where hydrogen sulfide is present. This process can significantly increase the capacity of a Claus and tail gas unit. This procedure also reduces the cost for new plant sulfur recovery unit applications by eliminating the
Get Price
Draft Guidance for Industry Hazard Analysis and Risk
· product is placed into a chamber and immersed in water or some other pressurizing fluid then subjected to the high pressure for a time of 120 minutes depending on
Get PriceStandard Practice for Heat Treatment of Aluminum-Alloy
· vapor or contain compounds of sulfur. Surface discoloration is a normal result of solution heat treatment of aluminum alloys and should not be interpreted as evidence of damage from overheating or as heat treat induced porosity. 4.3 Automatic Recording and Control Equipment Ñto con-trol temperature of air furnaces shall be capable of maintaining
Get PriceCorrosion/Erosion in Sulfur Recovery (Real-Life Examples)
· 2011 Sulfur Recovery Symposium Vail Colorado September 12 -16 2011 High Temperature Sulfide Attack Claus Waste Heat Boiler Tubesheet Leaks The metal loss on the tube to tubesheet welds observed on this Claus Unit Thermal Reactor WHB tubesheet are caused high temperature sulfide corrosion. This resulted from poor hot-gas
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Debottlenecking Claus Sulfur Recovery Units An
· The partial combustion Claus process is used for H2S rich gases with H2S concentrations above 50-60 . It consists of a thermal stage and several catalytic stages for conversion of H2S to Sulfur. In the thermal stage the gas is burnt with sufficient air to convert 1/3rd of the H2S to SO2. This gives a product with an H2S to SO2 ratio of 2 1 and
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Corrosion/Erosion in Sulfur Recovery (Real-Life Examples)
· 2011 Sulfur Recovery Symposium Vail Colorado September 12 -16 2011 Wet H 2 S Corrosion 550# Steam Claus ReheaterTube Failure Slide 2 of 3 A few of the extracted tubes were found to have excessive deep pitting on the inlet side most likely due to under deposit corrosion where sulfur impregnated into the metal matrix.
Get PriceNatural Gas Processing Unit Modules Definitions
· The "Claus Process" in the 2 most common method used is the recovery of elemental sulfur. The "Claus" technology consists 3 of a thermal stage (combustion chamber waste heat boiler) and two or three catalytic reaction 4 stages (reheater reactor and condenser). The sulfur produced in the thermal
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Reduction of sulfur dioxide by Desulfovibrio desulfuricans
In addition to damage to ecosystems acid rain causes major damage to materials such as metals limestone marble and mortar. Sulfur di- oxide and related pollutants have also been linked to vari- ous categories of human There are several engineering solutions to the problem of SO emissions from the combustion of sulfur-bearing
Get PriceFeasibility studies on cleaning of high sulfur coals by
· Feasibility studies on cleaning of high sulfur coals by using ionic liquids can cause ash deposition and erosion damage to the boiler tube. The acid dew point of flue gas is also determined by loaded into a vacuum chamber (base pressure of 1 9 10-8
Get Price
Reduction of sulfur dioxide by Desulfovibrio desulfuricans
In addition to damage to ecosystems acid rain causes major damage to materials such as metals limestone marble and mortar. Sulfur di- oxide and related pollutants have also been linked to vari- ous categories of human There are several engineering solutions to the problem of SO emissions from the combustion of sulfur-bearing
Get Price
Major Accidents at Chemical/Refinery Plants Hazardous
Sulfur Recovery Unit #3 was being shut down on the morning of 4/23/02 to address concerns about SO2 stack emissions which were approaching the BAAQMD 250 ppm/hr limit. SRU#3 converts acid gas consisting of SO2 and H2S to elemental sulfur in a catalytic reactor utilizing the "Claus" process.
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Natural Gas Processing Unit Modules Definitions
· The "Claus Process" in the 2 most common method used is the recovery of elemental sulfur. The "Claus" technology consists 3 of a thermal stage (combustion chamber waste heat boiler) and two or three catalytic reaction 4 stages (reheater reactor and condenser). The sulfur produced in the thermal
Get PriceThermal stability of monolayer WS2 in BEOL conditions
· Monolayer tungsten disulfide (WS 2) has recently attracted a great deal of interest as a promising material for advanced electronic and optoelectronic devices such as photodetectors modulators and sensors.Since these devices can be integrated in a silicon (Si) chip via back-end-of-line (BEOL) processes the stability of monolayer WS 2 in BEOL fabrication conditions should be studied.
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Claus Plant Combustor Survey ResultsBanks Engineering
· In its simplest form the activity of any Claus sulfur plant can be summarized as H 2 S O 2 => H 2 O S. In the 1800 s researchers found that this reaction occurred best on the solid surfaces of their test equipment. About 1890 the Claus process was commercialized with H 2 S being oxidized with air over a bauxite catalyst in a single reactor. In 1937 I. G. Farbenindustrie improved the process by
Get Priceminerals epsomite mirabilite and natron under Europa
Thermal and radiation stability of the hydrated salt minerals epsomite mirabilite and natron under Europa environmental conditions Thomas B. McCord 1 Thomas M. Orlando 2 3 Glenn Teeter 2 Gary B. Hansen 1 Matthew T. Sieger 2 4 Nikolay G. Petrik 2 and Lisa Van Keulen 1 Abstract.
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