Abstract:
A method for producing ILSAC GF5 or higher compatible oils from used oil, comprising separating material having a boiling point less than about 350°F from recovered oil to produce de- volatized oil fraction and light oil fraction. Separating material with a boiling point greater than about 350°F and less than about 650°F from the de-volatized oil fraction to produce fuel oil fraction and heavy oil fraction. Separating material with a boiling point greater than about 1200°F from the heavy oil fraction to produce partially purified oil fraction and residual fraction. Treating the partially purified oil fraction to separate it into purified oil fraction and contaminant fraction. Hydrogenating the contaminant fraction to remove predetermined compounds, further saturating the fraction and thereby creating a saturated oil fraction. Fractionating the saturated oil stream to produce one or more of naphtha fraction, diesel oil fraction and base oil fraction.
Abstract:
A presente invenção diz respeito a um processo de obtenção de bioquerosene de aviação e a uma composição de querosene de aviação contendo o bioquerosene de aviação assim produzido. O processo consiste em simultaneamente combinar três condições básicas: seleção de matéria-prima; condições de processamento; e controle de determinadas características do produto. A composição se classifica como uma composição semi-sintética de querosene de aviação podendo conter até 20% em peso do bioquerosene de aviação, atendendo os limites preconizados nas especificações internacionais para querosene de aviação.
Abstract:
A process is described for producing deasphalted steam cracker tar comprising feeding steam cracker tar to a vacuum pipestill (VPS) including a flash zone separated from a zone comprising trays by at least one annular entrainment ring and obtaining as an overheads a deasphalted tar product and as a bottoms an asphaltenic heavy tar product. Also according to the invention, there is a system for the upgrading of tar comprising said VPS with at least one annular entrainment ring.
Abstract:
A process and apparatus are disclosed that relate generally to a process for reducing harmful or unwanted emissions during the production of asphalt, such as blue smoke. The process includes the introduction of a pump around of the wax oil fraction for re-introduction into the vacuum tower. Additional desirable features includes stripping trays below the wax oil collection tray and the feed zone. The results is to produce an asphalt product that creates less blue smoke in the hot mix plant. Another desirable feature is that a product can be created that meets Performance Grade specification with the addition of polymers or other additives.
Abstract:
A process and apparatus are disclosed that relate generally to a process for reducing harmful or unwanted emissions during the production of asphalt, such as blue smoke. The process includes the introduction of a pump around of the wax oil fraction for re-introduction into the vacuum tower. Additional desirable features includes stripping trays below the wax oil collection tray and the feed zone. The results is to produce an asphalt product that creates less blue smoke in the hot mix plant. Another desirable feature is that a product can be created that meets Performance Grade specification with the addition of polymers or other additives.
Abstract:
The present invention pertains to the field of petro-chemistry and to the petroleum-conversion industry. This invention essentially relates to a system which comprises a vacuum rectifying column as well as a vacuum generating device on the basis of a liquid-gas jet apparatus. The system of the present invention further comprises a jet pump, wherein the nozzle of said pump is connected to a duct for discharging the liquid fraction in the column, while its inlet for the medium to be pumped is connected to the outlet of the liquid-gas jet apparatus. The outlet of said pump is further connected to a separator. The system of the present invention has an increased efficiency when compared with analogous systems or its prototype.
Abstract:
Systems and methods are provided for improving operation of a fluid catalytic cracker as part of an integrated processing environment including a deasphalting unit and a hydroprocessor. Optionally, a coker can be included in the integrated system to allow for further improvements. The improved processing can be facilitated based on a process configuration where a combination of deasphalting and hydroprocessing are used to perform conversion on more refractory compounds, so that the fluid catalytic cracker can be operated at lower severity conditions. This can allow for improved production of desirable olefins and reduced production of light paraffins and coke. Additionally or alternately, the processing configuration can allow the bottoms fraction from fluid catalytic cracking to be incorporated into a higher value use than the typical regular sulfur fuel oil disposition.
Abstract:
Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking, fluid catalytic cracking and conversion of naphtha to chemical rich reformate. Feeds to the mixed feed steam cracker include light products from hydroprocessing zones within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline and FCC naphtha aromatics extraction zone within the battery limits. Chemical reformate from straight run naphtha streams is used as an additional feed to the aromatics extraction zone and or the mixed feed steam cracker.