Petroleum Coke And Cadmium

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Petroleum coke - Wikipedia

Petroleum 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 in units termed coker units . [1] (

Petroleum Coke - an overview | ScienceDirect Topics

Petroleum coke is used because of its high purity. Metal impurities more noble than aluminum, such as iron and silicon, are deposited in the aluminum while less noble impurities, such as calcium and magnesium, accumulate as fluorides in the electrolyte. The anodes are baked at temperatures between 1000 and 1200°C. Steel stubs are inserted into sockets provided at the top of the anode and fixed in …

MANAGING CHINA’S PETCOKE PROBLEM

Petroleum coke is a carbon-rich solid that emerges as a by-product of crude oil refining and other “cracking” processes, in which complex organic molecules such as heavy hydrocarbons are broken down into simpler, and more valuable, lighter petroleum products. Low-sulfur, high-grade petcoke is widely used in metal manufacturing, and

Adsorption of some toxic heavy metals from aqueous ...

Petroleum Coke The coke used in this work is a product of the delayed coking process at the Homs Oil Refinery. Study of the different types of petroleum coke indicates that the porous sponge coke is most suited for activation and production of activated carbon suitable for adsorption purposes [1, 9]. Previous work shows that the adsorption

Petroleum coke | EKC.AG

Petroleum coke, a very high-carbon, low-ash solid, is formed during crude oil processing. In dried form, cleaned of volatile components, the raw material is also referred to as calcine or calcined petroleum coke. Green coke, on the other hand, still contains hydrocarbons. For foundry and steel products with the highest quality requirements, graphitised petroleum coke, which consists of more than 99 % carbon, …

Petroleum Coke Particle Size Effects on the Treatment of ...

EAF dusts were mixed with petroleum coke and irradiated together under microwave for a pyrometallurgical treatment. It was found that particle size of the reducing agent played an important role in affecting the reduction degree. Both zinc removal and metallization degree increased with the decreasing of the coke particle size. By changing both microwave time and

Locating and Estimating Sources ofCadmium

8-2 coke production capacity for integrated iron and steel facilities in the united states in 1991 .....8-6 8-3 cadmium releases reported by iron and steel facilities in 1990 tri .....8-13 8-4 cadmium emissions reported from bethlehem steel, sparrows point, maryland .....8-14 8-5 cadmium …

CHARACTERIZATION OF PETROLEUM COKE AND BUTTS USED IN …

contact angle of calcined petroleum coke and anode butt recycled differs by 9º.The wettability increases (contact angle decreases) with time for both coke and butt. Recycled anode butt has a lower contact angle compared to petroleum coke at all times, showing that the butt is wetted better than the coke by pitch. It is observed that the contact angle for recycled anode butt

Petroleum Coke - an overview | ScienceDirect Topics

Petroleum coke is a chunky powdered carbon product derived from petroleum. If petroleum coke is heated to a high temperature, it may emit volatiles such as polynuclear aromatic hydrocarbons, which could be suspect carcinogens. Such exposures can occur in coke oven workers. The production of coke by the carbonization of bituminous coal leads to the release of chemically complex emissions from ...

(PDF) Fly ashes from coal and petroleum coke combustion ...

cadmium, lead, selenium and mercury, which can limit the The demand of petroleum coke is also expected to potential applications of CFA (Querol et al. 2001b, Izquierdo increase. Its current use is mainly as primary and co-firing fuel et al. 2007, 2008). The study of Jegadeesan et al. (2008) based for power generation (Swain 1997) and it is expected that the on chemical sequential extraction ...

Direct evaluation of cadmium in petroleum by atomic ...

Direct evaluation of cadmium in petroleum by atomic absorption analysis. Full Record; Other Related Research; Abstract. An atomic absorption procedure for the determination of Cd in petroleum is outlined. The procedure is as sensitive as activation analysis and requires much less time. (JSR) Authors: Abu-Elgheit, M Publication Date: Sat Feb 01 00:00:00 EST 1975 Research Org.: ...

Fly ashes from coal and petroleum coke combustion: …

07/05/2009· Current combustion technologies allow the burning of fuels with high sulfur content such as petroleum coke, generating non-CFA, such as petroleum coke fly ash (PCFA), mainly from fluidized bed combustion processes. The disposal of CFA and PCFA fly ashes can have severe impacts in the environment such as a potential groundwater contamination by the leaching of heavy metals and/or …

US20130089491A1 - Raw petroleum coke composition …

Provided is a raw petroleum coke composition as a raw material of an anode carbon material that can improve, when a battery is discharged at a high current, the ratio capable of maintaining the capacity obtained during discharge at a low current. More specifically, provided is a raw petroleum coke composition for an anode carbon material of a lithium ion secondary battery, the raw petroleum ...

XRF Elemental Analysis

Sulfur in petroleum coke; Magnesium, potassium, sulfur, calcium, barium, zinc, and molybdenum in lubricating oils; Sulfur, chloride, arsenic, lead, and cadmium in waste oils and waste fuel oils; and additional applications XRF analysis and testing resources: Sulfur Testing for Fuels, Crude Oil and Hydrocarbons; Oil Condition Monitoring; Mineral Assay and Testing; X-Ray Fluorescence Analysis ...

China Is Quietly Burning A Fuel Dirtier Than Coal -- And ...

15/07/2015· Petroleum coke is a cheap byproduct of oil refining that China has increasingly consumed in the last decade, as runaway demand for industrial fuel has driven up coal prices.

Locating and Estimating Sources ofCadmium

cadmium oxide, pigments, and stabilizers) .....4-27 4-11 cadmium compound manufacturers (other than cadmium oxide, pigments, and stabilizers .....4-30 4-12 manufacturers of inorganic compounds reporting cadmium emissions in the 1990 toxic chemicals release inventory .....4-31 5-1 market areas for cadmium coatings .....5-3 5-2 composition and operating parameters of cadmium cyanide plating …

NEA | Annex VIII

Waste from the production or processing of petroleum coke and bitumen (A3020) Waste mineral oils unfit for their originally intended use (A3030) Wastes that contain, consist of or are contaminated with leaded anti-knock compound sludge (A3040) Waste thermal (heat transfer) fluids (A3050)

BP oil refinery waste piles up on Southeast Side - …

18/10/2013· China is by far the largest buyer of American petroleum coke exports, which increased to 26 million barrels last year from 2.1 million barrels in 2007, according to federal records. Much of the ...

(PDF) Fly ashes from coal and petroleum coke combustion ...

cadmium, lead, selenium and mercury, which can limit the The demand of petroleum coke is also expected to potential applications of CFA (Querol et al. 2001b, Izquierdo increase. Its current use is mainly as primary and co-firing fuel et al. 2007, 2008). The study of Jegadeesan et al. (2008) based for power generation (Swain 1997) and it is expected that the on chemical sequential extraction ...

6. ANALYTICAL METHODS

lower than that found in coal tar, creosote, petroleum, coke, and quenching oils. However, petrol engines produced five times more pyrene than diesel engines (Granella and Clonfero 1993). AAS is the most commonly used method to selectively detect and identify the metal components (lead, cadmium, manganese, copper, nickel, iron, and zinc) of used mineral-based crankcase oil in air (Clausen and ...

[PDF] Petroleum coke and soft tailings sediment in ...

Petroleum coke treatments produced significantly elevated levels of Ni. We also found unexpectedly higher concentrations of metals in "consolidated tailings" waste materials, potentially due to the use of oil sands-produced gypsum, and higher background concentration of elements in the sediment used in the controls. A trend of higher concentrations of V, Ni, La, and Y was present in the ...

Removal of Cu(II) ions from aqueous solutions using ...

19/03/2019· Petroleum coke (PC)-derived porous carbons were developed through chemical activation using KOH and applied to adsorb Cu(II) ions from aqueous solutions. The effects of KOH/PC mass ratio and activation temperature on the preparation and physical properties of porous carbon were studied. Also, the effects of the initial solution pH, contact time, operating temperature, dosage of adsorbent, …

Petroleum coke circulating fluidized bed combustion ...

The combustion of petroleum coke with limestone in a circulating fluidized bed (CFB) to remove SO2 from flue gas creates a product that may be used in agriculture. However, there are no reports on changes of soil chemical properties by application of petroleum coke CFB product. Two field experiments were conducted to determine elements in topsoil, subsoil, and soil water after CFB …

US20130089491A1 - Raw petroleum coke composition …

Provided is a raw petroleum coke composition as a raw material of an anode carbon material that can improve, when a battery is discharged at a high current, the ratio capable of maintaining the capacity obtained during discharge at a low current. More specifically, provided is a raw petroleum coke composition for an anode carbon material of a lithium ion secondary battery, the raw petroleum ...

China Is Quietly Burning A Fuel Dirtier Than Coal -- And ...

15/07/2015· Petroleum coke is a cheap byproduct of oil refining that China has increasingly consumed in the last decade, as runaway demand for industrial fuel has driven up coal prices.

Petroleum Refining Catalysts - Deactivation & how to …

06/09/2017· Petroleum refining catalysts are expensive materials and are protected by refinery staff to ensure long reactivity life. Controlling the impurities present in the feedstock crude oil streams being processed, controlling operational conditions, minimizing in-process contamination sources and insuring that processing aides and cleaning processes and products do not cause undue presence of ...

NEA | Annex VIII

Waste from the production or processing of petroleum coke and bitumen (A3020) Waste mineral oils unfit for their originally intended use (A3030) Wastes that contain, consist of or are contaminated with leaded anti-knock compound sludge (A3040) Waste thermal (heat transfer) fluids (A3050)

Fly ash - Wikipedia

Fly ash or flue ash, also known as pulverised fuel ash in the United Kingdom, or coal combustion residuals (CCRs), is a coal combustion product that is composed of the particulates (fine particles of burned fuel) that are driven out of coal-fired boilers together with the flue gases.Ash that falls to the bottom of the boiler's combustion chamber (commonly called a firebox) is called bottom ash.