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Dec 20, 2014· Calcined petroleum coke is used for the production of carbon anodes in the HallHéroult aluminum smelting process due to a combination of low impurity levels, ready availability, and relatively low cost. This article provides a review of the history and use of calcined petroleum coke for anode production and describes the different calcining technologies used by the industry.
Coke Production General ... volatile coals that are generally low in sulfur and ash. Blending is required to control the properties of the ... moisture content, rate of underfiring, and the desired properties of the coke. When demand for coke is low, coking times can be extended to 24 hours for blast furnace coke and ...
Read more about Use of Pet Coke and Furnace Oil in Industries on Business Standard. The Supreme Court imposed a ban on use of pet coke and furnace oil on in DelhiNCR states. Since the ban has been imposed recently, its impact is yet to be assessed. Various categories of industries such as cement, thermal power plant,
The industry only uses lowsulphur (< per cent) imported petcoke with a blending limit of 15 per cent as the presence of sulphur is detrimental to steel quality. Increase in the sulphur content would require additional volumes of limestone to remove the sulphur as slag. It will further increase the coke requirement per tonne of crude steel.
Sep 14, 2015· The amount of fresh lime injection is not limited by flue gas temperature thus allowing greater SO 2 scrubbing performance over a wider range of fuel sulfur content.
• Injection of absorbents such as hydrated lime (Ca(OH) 2), calcium oxide (CaO), or fly ashes with high CaO content into the exhaust gas before filters; • Use of wet or dry scrubber SO 2 emissions in lime manufacturing are generally lower than in cement because of the lower sulfur content of raw materials. Techniques to limit SO
A. A Boateng, in Rotary Kilns (Second Edition), 2016. Abstract. Petroleum coke is a byproduct of the coker process in the oil industry. In its raw form, it is also called "green coke" or green petroleum coke. Calcined petroleum coke is an important industrial commodity that links the oil and the metallurgical industries as it provides a source of carbon for various metallurgical ...
Jul 01, 1990· The sulfur content of petroleum coke has steadily increased in recent years, and forecasts show levels will rise even further. This increase in sulfur content comes at a time when environmental awareness is at a peak, and regulatory restrictions are likely to place limits on the amount of sulfur permitted. Fortunately for aluminum smelters, several methods of reducing the sulfur content .
May 01, 1989· Here, the effect of calcium to sulphur molar ratio on the retention of sulphur dioxide is shown to be similar to that observed for combustion tests in a FUEL,1989, Vol 68, May 583 Fluidized bed combustion of petroleum coke: A. Majid et a I. Ca:S MOLE RATIO Figure 1 Ca:S ratio effect on the retention of SO^ by lime:, fluidizedbed; ...
Emissions of sulfur dioxide after burning the coal / pet coke in boiler causes serve damage not only to the environment, historical monuments like TajMahal but also to the human health. Because of the ecological and human health impacts of sulfur dioxide regulatory standards have been set to bring down the SO 2 emission into the atmosphere. This
Jun 12, 2013· Free lime to %. Flame Momentum % m/s. Liquid % %. Fuel CV . ... I suspect your dusty conditions and kiln inlet ring are the result of very high sulphur recirculation as a consequence of using petcoke. Even though you may have no CO in the kiln inlet, the large amount of SO3 introduced by the petcoke may not be ...
Sulphur is a constituents of fuel found from its ultimate analysis about 1% to 8% as per quality of fuel. Basically Pet coke having higher sulfur percentage which is a byproduct of Petroleum refinery. Sulfur racts with oxygen to produce se ulfur dioxide (SO₂) sulfur xide (SO₃). Molar mass: gm/mol . Formula: S . Melting point ...
Sulphur is a constituents of fuel found from its ultimate analy sis about 1% to 8% as per quality of fuel. Basically Pet coke having higher sulfur percentage which is a byproduct of Pe troleum refinery. Sulfur reacts with oxygen to produce sulfur dioxide (SO₂) sulfur xide (SO₃). Molar mass: gm/mol. Formula: S. Melting point ...
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A = 0%). The sieve with hole size "k" is the hypothetical sieve through which no coke will pass (k=0mm, K=). Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) When coke descends in the blast furnace, it is subjected to reaction with countercurrent CO 2 and abrasion. These concurrent processes weaken the coke and chemically ...
Jun 23, 2013· Sulphur content of the BF coke has also got its affect on the BF productivity. A decrease of sulphur content of coke by % improves the BF productivity by % to %. Fuel (pulverized coal/ natural gas/ coke oven gas/oil/coal tar) injected at the tuyere level is normally accompanied by oxygen enrichment of the hot air blast.
Reduction in the emission level Mg/Nm3 500 300 Complying with new standard 12. Ash Generation Total Ash with fuel mix Or with coal Includes ash generated from lime injection Fly Ash generation (tpd) with fuel mix (29 % ash in fuel mix) Or with Coal ... (Pet Coke)8 Sulphur content in fuel (%) % max. (Coal ...
Reduction in the first 30 min was selected as the effective reaction for the application of CLC, which gave an oxygen transport capacity of about %. ... impurities and sulfur content of the ...
The sulphur content of HSFO is typically %S which if refined to % S, would equate to the removal of million tonnes of sulphur although CRU this scenario to be achievable in 2020. The near term change in sulphur supply will be dependent on investment in refining capacity, spare capacity at existing refineries and changes in ...
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Jul 11, 2015· Limitations of use of Petcoke A few of the limitations of the use of petcoke are as under mentioned: * Since the sulphur content in the petcoke is high, the quantity of its use is limited by the molar ratio of oxides of alkalies to sulphur in hot meal entering the kiln which must be .
Petroleum coke (petcoke) is a black colored solid composed primarily of carbon, and may contain limited amounts of elemental forms of sulfur, metals and nonvolatile inorganic compounds. Petcoke is the coproduct of several processes used in petroleum refining to upgrade "residuum" into gasoline and middle distillaterange fuels.
Green Petroleum Coke is to be Calcined after extraction. Calcining is done in a rotary kiln to temperatures of 1600oC. CPC has Fixed Carbon Content of 99% +/ and Volatile Content %. Sulphur content varies depending on the crude used to make the Green Petroleum Coke .
Sep 09, 2013· C2S which has sulphur incorporated into its crystal structure is stabilised and therefore has a reduced tendency to react with additional CaO to form C3S. This results in an increase in the quantity of C2S and a corresponding reduction in the C3S content of the final clinker, despite there being sufficient free lime to convert the C2S into C3S.
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