Removal of sulfur from petroleum coke with lime Download PDF Info Publication number US4981667A. US4981667A US07/508,422 US50842290A US4981667A US 4981667 A US4981667 A US 4981667A US 50842290 A US50842290 A US 50842290A US 4981667 A US4981667 A US 4981667A Authority US United States Prior art keywords sulfur pitch …
Get MoreA system to selectively remove metal compounds and sulfur from a petroleum feedstock includes a mixing zone configured to mix a pre-heated water stream and a pre-heated petroleum feedstock to form a mixed stream, a first supercritical water reactor configured to allow conversion reactions to occur to produce an upgraded stream, a carbon dispersal zone configured to mix …
Get MorePetroleum Coke Petroleum coke is the product of crude oil after distillation to separate light and heavy oil, and then the heavy oil is then thermally cracked. The physical and chemical properties of petroleum coke include ash, sulfur, volatiles, true density, porosity, resistivity, thermal expansion coefficient, and mechanical properties.
Get MoreGraphite Petroleum Coke is graphitized at a high temperature of 3000 °C in the Acheson graphitization furnace to form graphitized graphite coke. ... slag removal operation of hot metal should be avoided to prevent carburizer from being taken out of the furnace with slag. 3. It is suggested that the recycled material or pig iron should be added ...
Get Moremetal impurities in the petroleum coke. The spare gasifier is normally in a hot-standby condition. That is, it is preheated with natural gas or purge gas and is ready to be switched into ser-vice if necessary. To put a gasifier into service, the preheat burner is remove d and a feed injector is inserted. The feed lines are bolted up and the gasi-
Get MoreThe ash content indicates the presence of inorganic admixtures in coke. Metal concentrations increased through calcining, due to the weight loss from removal of the volatile matter; the coke samples revealed the higher content of nickel (151 to 279 ppm) which is the most represented metal component in the coking feedstock.
Get MorePetroleum coke is a product formed by separating light and heavy oil from crude oil through distillation and then transforming heavy oil through thermal cracking. From its appearance, coke is a black block (or particle) with irregular shapes and different sizes, with a metallic luster. The particles of coke have a porous structure.
Get MoreSINTERED POROUS METAL FILTRATION SYSTEMS FOR PETROLEUM REFINING APPLICATIONS Abstract: Currently, petroleum products are the largest source of energy used in United States, with 90 percent of these products being fuels such as gasoline, coke, kerosene, aviation fuels, distillate, residual oil and liquefied petroleum gas. Refineries convert
Get Moreusing biological methods[5-9]. Removal of heavy metals by adsorption is widely investigated area of investigation[10-12]. The batch and column studies have been reported on heavy metal removal by low cost adsorbents[13]. The heavy metal removal is very important because of its effect on man and environment [14-17].
Get MoreCokes. Coke is a synthetic raw material used for producing carbon in combination with binding agents (or binders). There are different kinds of coke, e.g. petroleum coke, pitch coke, metallurgical coke, carbon black, needle coke. For a summary of …
Get MorePetroleum coke (PC), a by-product from petrochemical industry, is a potential substance to replace activated carbon mercury removal adsorbent. Most of …
Get MoreA method for removing furfural-derived coke from metallic surfaces by heating in an oxygen-containing gas, such as air, for a time and at a temperature sufficient to change the crush strength of the furfural coke to a point which will permit easy removal of such coke, without such an evolution of heat that the metallurgical properties of said metal surfaces are undesirably …
Get MoreNiasar et al.4 studied heavy metal removal using activated petroleum coke. After activation the petroleum coke surface area was found to be 1726 m2/g with the KOH to coke ratio of 3 and at activation temperature of 790 °C. Lu et al.5 studied the influence of K 2 CO 3 in activation of petroleum coke and compared the data to that of coke
Get MoreUS2744853A US361859A US36185953A US2744853A US 2744853 A US2744853 A US 2744853A US 361859 A US361859 A US 361859A US 36185953 A US36185953 A US 36185953A US 2744853 A US2744853 A US 2744853A Authority US United States Prior art keywords oil petroleum compounds iodine metal Prior art date Legal status (The …
Get MoreIt is shown that the process is highly promising for the production of an activated carbon aimed at the removal of heavy metals from wastewater. activated carbon, metal removal, petroleum coke, SEM, wastewater treatment
Get MoreZinc removal, for temperatures around 1100 ºC, in an experiment of 45 minutes and using 10% of petroleum coke, was approximately 85%. It …
Get MoreThe effects of permanent poisons cannot be overstated. Blockages of the porosity, removal of active metal sites and agglomeration of the active metal by poisons often lead to an increase of in the relative rate of coke formation and carbon deposition. This can lead to severe process problems caused by poisoned petroleum refining catalysts.
Get Moreeven after regeneration catalysts activity is often not restored to the origina [level, because the main mass of metals remains in metal removal from petroleums and petroleum products 121 the pores. 209 t metal may be deposited every year in a desulphurizing plant (7950 m3/ /day) on the catalyst, from a feed containing 0.01% of metal; the metal …
Get MoreThe calcined petroleum cokes are used in production of aluminum anode-grade, graphite electrode, needle-grade, titanium dioxide pigments. Petroleum coke (green and calcined) is produced by the ...
Get MorePETROLEUM COKE Petroleum coke is a black carbonaceous solid material produced as a by-product of delayed coking or ... If the by-product coke is of a low sulfur and low metal content, it can be further upgrad- ... and nitrogen removal from liquid product is …
Get MoreCarbon rejection entails removal of heavy petroleum subfractions and includes asphaltene removal under high energy-intensiveness thermal separation into petroleum coke. Petroleum coke has been ...
Get MorePetroleum coke, abbreviated coke or petcoke, is a final carbon-rich solid material that derives from oil refining, and is one type of the group of fuels referred to as cokes.Petcoke is the coke that, in particular, derives from a final cracking process—a thermo-based chemical engineering process that splits long chain hydrocarbons of petroleum into shorter chains—that takes place …
Get Moreupgrading caltinations. The calcinated petroleum coke are used in production of aluminium, anode-grade, graphite electrodes, needle-grade, TiO 2 pigments [1]. A number of factors determine the quality of petroleum coke, such as: density, metal and sulphur content, electrical resistivity. Knowledge of structure parameters also contributes to the ...
Get MoreIn this study, we activated different samples of petroleum coke, an economical carbonaceous substance with great potential as an activated carbon material for the removal of SO 2, via six common methods, viz., hydrothermal, high-temperature, acid-based, alkali-based, H 2 O 2-based and Cu 2+-based treatment, and evaluated the desulfurization efficiency of each …
Get MoreA number of processes ranging from purely physical such as solvent extraction to thermal or chemical treatment using different agents including …
Get Moreheavy metal removal using activated petroleum coke (). After activation, the petroleum coke surface area was found to be 1726 m2/g with the KOH to coke ratio of 3 and at acti- vation temperature of 790 C. Lu et al5studied the influence of K 2CO 3in activation of petroleum coke and compared the data to that of coke activated using KOH. The author
Get MoreA method for removing furfural-derived coke from metallic surfaces by heating in an oxygen-containing gas, such as air, for a time and at a temperature sufficient to change the crush strength of the furfural coke to a point which will permit easy removal of such coke, without such an evolution of heat that the metallurgical properties of said metal surfaces are undesirably …
Get Moremetal surface or collection by an electrostatic precipitator (ESP). The gas still contains 75 percent of ... petroleum). Straw oil acts as an absorbent for the light oils, and is later heated to release the light oils for recovery and refinement. The last cleaning step is the removal of hydrogen sulfide from the gas. ... coke removal, (6) hot ...
Get MoreThe petroleum coke component is a hydrocarbon, which contains 90-97% carbon, 1.5-8% hydrogen, and also contains nitrogen, chlorine, sulfur, and heavy metal compounds. Petroleum coke is a by-product when the feedstock oil of the delayed coking unit is cracked at high temperatures to produce light oil.
Get MoreFigure 3 Effects of petroleum coke size on the zinc removal (left) and metallization degrees (right), MW power 1.1kW, processing time 15min, coke addition 15 wt% The original dusts have most particles smaller than 2 µm. As the coke particle size went smaller, the surface areas for chemical reactions became larger.
Get MorePetroleum coke is a residue with high carbon content and low ash content. Due to its practically amorphous structure, it is a material of little commercial value, being considered a troublesome residue, both to economically and to the environment. Therefore, the use of petroleum coke for the production of AC and
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