摘要:
A method is provided for reprocessing a petroleum-based waste oil feedstock into diesel fuel. The method includes forming a treated feedstock by (a) filtering the feedstock, thereby removing solids and metals from the feedstock, and (b) dehydrating the feedstock; vaporizing the treated feedstock to produce an oil vapor; passing the oil vapor through at least one catalyst bed and subsequently through a cooler, thereby converting the oil vapor to a hydrocarbon liquid product with a diesel product boiling point range; and removing contaminants from the hydrocarbon liquid product, wherein the contaminants are selected from the group consisting of particulates and color precursors.
摘要:
The present invention relates to a method for the physical separation of solids and asphaltenes with a conversion degree higher than or equal to 90%, present in refinery purge streams. Said method provides for heating a refinery purge stream to a temperature higher than or equal to 185°C and not exceeding 220°C and, subsequently, subjecting said heated purge to sedimentation by progressively lowering the temperature in a controlled manner to a minimum temperature of 100°C, without stirring the purge, so as to form a light phase and a heavy phase defined in relation to the density.
摘要:
Systems and methods of integrated gas oil separation are disclosed. Systems include a high pressure production trap (HPPT), a low pressure production trap (LPPT), a low pressure degassing tank (LPDT), a first knockout drum (KOD) fluidly coupled to the LPDT and operable to accept an atmospheric pressure off-gas from the LPDT, an atmospheric pressure compressor fluidly coupled to the first KOD and operable to compress the atmospheric pressure off-gas to introduce the atmospheric pressure off-gas from the LPDT into the LPPT inlet feed stream, a second KOD fluidly coupled to the LPPT and operable to accept a low pressure off-gas from the LPPT, and a low pressure compressor fluidly coupled to the second KOD and operable to compress the low pressure off-gas to introduce the low pressure off-gas from the LPPT into the crude oil inlet feed stream.
摘要:
A process for the hydroprocessing of heavy oils and/or oil residues, the process comprising the steps of contacting a non-metallised carbonaceous material with an acid to form a non-metallised carbonaceous additive; and contacting the heavy oils and/or oil residues with the non-metallised carbonaceous additive in the presence of a hydrogen- containing gas at a temperature of from 250°C to 600°C.
摘要:
A system has a heater that heats a contaminated input hydrocarbon to a process temperature. An ionizer applies an electron inducing voltage to the heated hydrocarbon and a flocculent supply provides a charged flocculent into the ionized hydrocarbon. A separator removes the flocculent and contaminants from the hydrocarbon to produce solid waste and oil.
摘要:
Techniques for dewatering thick fine tailings may include one or more pre-treatment steps, such as pre-shearing to reduce the yield stress prior to flocculation, hydrocarbon removal below a threshold to improve flocculation and dewatering, flocculant dosing on a clay basis, and providing certain properties of the thick fine tailings related to coarse and fine particle sizes and/or chemistry such as divalent cation content. Various advantages may result from pre-treatments based on thick fine tailings properties, such as reduced flocculant dosage requirements, improved dispersion of flocculant into the thick fine tailings and/or enhanced dewatering, for example. One or more of the pre-treatments may be performed.
摘要:
A composition useful for reducing catalyst fines in an FCC slurry oil from a fluid catalytic cracking process is disclosed wherein the composition comprises a first resin which is an nonyl-phenol formaldehyde resin that has been ethoxylated and a second resin which is a p-t-amyl-phenol formaldehyde resin that has been ethoxylated.
摘要:
Methods for conversion of a hydrocarbon feed to a total product are described. Contact of the hydrocarbon feed with one or more catalysts produces the total product. The total product includes a crude product that is a liquid mixture at 25 °C and 0.101 MPa and has a micro-carbon residue content of at most 90% of the micro-carbon residue content of the hydrocarbon feed.
摘要:
Systems and methods for producing a crude product are described herein. Systems include an upstream contacting zone and a downstream contacting zone coupled to the upstream contacting zone. The upstream contacting zone and the downstream contacting zone include one or more catalysts. Contact of a hydrocarbon feed with the one or more of the catalysts produces a hydrocarbon feed/total product mixture having a molybdenum content of at most 90% of the molybdenum of the hydrocarbon feed. Contact of the hydrocarbon feed/total product mixture in downstream with one or more downstream catalysts produces a crude product having a molybdenum content of at most 90% of the molybdenum content of the hydrocarbon feed and at most 90% of the residue content of the hydrocarbon feed. Methods of producing a crude product using said systems are described herein. Compositions of said crude product produced from said systems and methods are described herein.
摘要:
Systems, methods, and catalysts for conversion of a hydrocarbon feed to a total product are described. Contact of the hydrocarbon feed with one or more catalysts produces the total product. The total product includes a crude product that is a liquid mixture at 25 °C and 0.101 MPa having a residue content of at most 90% of the residue content of the hydrocarbon feed. At least one of the catalysts includes a metal from Column 6 of the Periodic Table, mineral oxide fines and a support.