An apparatus for improving thermal-mechanical stress resistance in a delayed coking drum having a drum shell. The apparatus includes a support skirt section configured to mount to and to assist in supporting the coking drum above a ground surface. A joining edge joins the support skirt section to an exterior portion of the drum shell. A T-shaped slot is formed in the support skirt section and is located proximate the joining edge. The T-shaped slot may be formed by a vertical slot portion and a horizontal slot portion joined together as a single slot.

An apparatus for improving thermal-mechanical stress resistance in a delayed coking drum having a drum shell. The apparatus includes a support skirt section configured to mount to and to assist in supporting the coking drum above a ground surface. A joining edge joins the support skirt section to an exterior portion of the drum shell. A T-shaped slot is formed in the support skirt section and is located proximate the joining edge. The T-shaped slot may be formed by a vertical slot portion and a horizontal slot portion joined together as a single slot.

The invention relates to processes for producing anode grade coke from whole crude oil. The invention is accomplished by first deasphalting a feedstock, followed by processing resulting DAO and asphalt fractions. The DAO fraction is hydrotreated or hydrocracked, resulting in removal of sulfur and hydrocarbons, which boil at temperatures over 370 C., and gasifying the asphalt portion in one embodiment. This embodiment includes subjecting hydrotreated and/or unconverted DAO fractions to delayed coking. In an alternate embodiment, rather than gasifying the asphalt portion, it is subjected to delayed coking in a separate reaction chamber. Any coke produced via delayed coking can be gasified.

The invention relates to processes for producing anode grade coke from whole crude oil. The invention is accomplished by first deasphalting a feedstock, followed by processing resulting DAO and asphalt fractions. The DAO fraction is hydrotreated or hydrocracked, resulting in removal of sulfur and hydrocarbons, which boil at temperatures over 370 C., and gasifying the asphalt portion in one embodiment. This embodiment includes subjecting hydrotreated and/or unconverted DAO fractions to delayed coking. In an alternate embodiment, rather than gasifying the asphalt portion, it is subjected to delayed coking in a separate reaction chamber. Any coke produced via delayed coking can be gasified.

An integrated system is provided for producing deasphalted oil, high quality petroleum green coke and liquid coker products. An enhanced solvent deasphalting system, is used to treat the feedstock to reduce the level of asphaltenes, N, S and metal contaminants and produce a deasphalted oil with reduced contaminants. A coking system is integrated to produce liquid and gas coking unit products, and petroleum green coke.

An integrated system is provided for producing deasphalted oil, high quality petroleum green coke and liquid coker products. An enhanced solvent deasphalting system, is used to treat the feedstock to reduce the level of asphaltenes, N, S and metal contaminants and produce a deasphalted oil with reduced contaminants. A coking system is integrated to produce liquid and gas coking unit products, and petroleum green coke.

Process for reclaiming useful products from a waste oil, comprising a thermal separation step performed in a vessel at conditions, of temperature and pressure, allowing to substantially avoid cracking of the waste oil and to assure the separation of said heated waste oil into a first heavy oil fraction and into a second light oil fraction having, in comparison with the waste oil, a low content in solids and/or in other contaminants that are different from water and from inert gas. The process is further characterized in that while, during the thermal separation treatment, the waste oil is heated to a temperature about the boiling temperature of the heavy oil fraction, and below the cracking temperature of the waste oil, and at a pressure that is preferably below the atmospheric pressure, the heavy oil fraction of the vapours existing the vessel, in contact with a cooler surface, condenses and falls back into the vessel, while the second fraction, in a gaseous state, is eventually submitted to at least one further separation treatment. When water is present in the waste oil, said water is used to improve the amount of recovered light oils; and/or when no water is present in the waste oil, water or at least one inert gas or at least one component that may become an inert gas by heating may be added to the waste oil or to the thermal separation unit. Uses of the process for environmental applications and for treating used oils and to prepare oil products. Systems for reclaiming useful products from waste oils comprising at least one rotating kiln and at least one self-refluxing condenser and/or at least one dephlegmator.

Process for reclaiming useful products from a waste oil, comprising a thermal separation step performed in a vessel at conditions, of temperature and pressure, allowing to substantially avoid cracking of the waste oil and to assure the separation of said heated waste oil into a first heavy oil fraction and into a second light oil fraction having, in comparison with the waste oil, a low content in solids and/or in other contaminants that are different from water and from inert gas. The process is further characterized in that while, during the thermal separation treatment, the waste oil is heated to a temperature about the boiling temperature of the heavy oil fraction, and below the cracking temperature of the waste oil, and at a pressure that is preferably below the atmospheric pressure, the heavy oil fraction of the vapours existing the vessel, in contact with a cooler surface, condenses and falls back into the vessel, while the second fraction, in a gaseous state, is eventually submitted to at least one further separation treatment. When water is present in the waste oil, said water is used to improve the amount of recovered light oils; and/or when no water is present in the waste oil, water or at least one inert gas or at least one component that may become an inert gas by heating may be added to the waste oil or to the thermal separation unit. Uses of the process for environmental applications and for treating used oils and to prepare oil products. Systems for reclaiming useful products from waste oils comprising at least one rotating kiln and at least one self-refluxing condenser and/or at least one dephlegmator.

An integrated process for upgrading a hydrocarbon oil feed stream includes solvent deasphalting the hydrocarbon oil stream to form at least a deasphalted oil stream and heavy residual hydrocarbons, delayed coking the heavy residual hydrocarbons to form petroleum coke and a delayed coker product stream; hydrotreating the delayed coker product stream and the deasphalted oil stream to form a C.sub.3-C.sub.4 hydrocarbon stream, a light C.sub.5+ hydrocarbon stream, and a heavy c.sub.5+ hydrocarbon stream; dehydrogenating the C.sub.3-C.sub.4 hydrocarbon stream to form propylene and butylene; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream to form a light steam enhanced catalytically cracked product stream including olefins, benzene, toluene, xylene, naphtha, or combinations thereof; and steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream to form a heavy steam enhanced catalytically cracked product including olefins, benzene, toluene, xylene, naphtha, or combinations thereof.

An integrated process for upgrading a hydrocarbon oil feed stream includes solvent deasphalting the hydrocarbon oil stream to form at least a deasphalted oil stream and heavy residual hydrocarbons, delayed coking the heavy residual hydrocarbons to form petroleum coke and a delayed coker product stream; hydrotreating the delayed coker product stream and the deasphalted oil stream to form a C.sub.3-C.sub.4 hydrocarbon stream, a light C.sub.5+ hydrocarbon stream, and a heavy c.sub.5+ hydrocarbon stream; dehydrogenating the C.sub.3-C.sub.4 hydrocarbon stream to form propylene and butylene; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream to form a light steam enhanced catalytically cracked product stream including olefins, benzene, toluene, xylene, naphtha, or combinations thereof; and steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream to form a heavy steam enhanced catalytically cracked product including olefins, benzene, toluene, xylene, naphtha, or combinations thereof.