摘要:
A crude oil feedstream is treated to remove or reduce the content of undesired metal components including nickel and/or vanadium by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired metal components from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorted boiling ranges of products having a lowered content of the undesired metal components, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process.
摘要:
A system, method and computer program product are provided for calculating the cetane number, octane number, pour point, cloud point and aniline point of crude oil fractions from the density and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) of a sample of the crude oil.
摘要:
A process for stabilization of heavy hydrocarbons to reduce sludge formation in storage tanks and/or transportation lines and to enhance the hydrocarbon yield includes mixing a paraffinic or heavy naphtha solvent having carbon numbers in the range 10 to 20 with the feedstock to solvent-flocculate a relatively small, predetermined portion of asphaltenes present in the feedstock, separating and flashing the sediment to recover a light hydrocarbon fraction, flashing the heavy hydrocarbon/solvent phase and recycling the solvent to stabilize the heavy hydrocarbons without significantly affecting the yield of valuable products.
摘要:
Initial high sulfur levels of a hydrocarbon feedstock are reduced to desired low levels without the need for integration of substantial new equipment or hardware with existing hydroprocessing reactors. Ionic liquids are utilized as organic sulfur extraction agents and are added to and mixed with the hydrocarbon feedstock containing organosulfur compounds in, or upstream of, an existing cold separator vessel. The ionic liquid and hydrocarbon mixture is maintained in contact under conditions which promote the formation of ionic sulfur-containing derivatives that are soluble in the ionic liquid to be formed, thereby enabling extractive removal and separation of the organosulfur compounds from the feedstock.
摘要:
Initial high sulfur levels of a hydrocarbon feedstock are reduced to desired low levels without the need for integration of substantial new equipment or hardware with existing hydroprocessing reactors. Ionic liquids are utilized as organic sulfur extraction agents and are added to and mixed with the hydrocarbon feedstock containing organosulfur compounds downstream of an existing cold separator vessel. The ionic liquid and hydrocarbon mixture is maintained in a contact vessel under conditions which promote the formation of ionic sulfur-containing derivatives that are soluble in the ionic liquid to be formed, thereby enabling extractive removal and separation of the organosulfur compounds from the feedstock.
摘要:
A system and a method for characterizing a crude oil sample from the weight and ultraviolet visible spectroscopy of the sample, including calculating a crude oil ultraviolet visible index and using the index to calculate the API gravity and the aromaticity of the sample.
摘要:
A cost-effective solution is provided for eliminating refinery process waste, including spent catalytic and non-catalytic adsorbent materials, as well as adsorbate process reject materials derived from desorption, while minimizing conventional waste handling demands. An asphalt composition includes asphalt and spent adsorbent material from a solvent deasphalting unit. The asphalt can comprise asphaltic material obtained from a solvent deasphalting unit, and spent adsorbent material in the asphalt composition was previously utilized in the solvent deasphalting unit. The asphalt composition can also include process reject materials.
摘要:
Aromatic extraction and hydrocracking processes are integrated to optimize the hydrocracking units design and/or performance. By processing aromatics-rich and aromatic-lean fractions separately, the hydrocracking operating severity and or catalyst reactor volume requirement decreases.
摘要:
A cost-effective solution for the disposal of solvent deasphalting process bottoms that include spent solid adsorbent material containing ash-producing constituents, asphalt and process reject materials is provided by introducing them in the form of a flowable slurry into a membrane wall gasification reactor to produce a synthesis gas and, optionally, subjecting the synthesis gas to a water-gas shift reaction to produce a more hydrogen-rich product stream; process steam and electricity are produced by recovering the sensible heat values from the hot synthesis gas.
摘要:
A process for upgrading hydrocarbon oil feedstreams employs a solid adsorption material to lower sulfur and nitrogen content by contacting the hydrocarbon oil, with a solid adsorbents in a mixing vessel; passing the slurry to a membrane separation zone to separate the solid adsorption material with the adsorbed sulfur and nitrogen compounds from the treated oil; recovering the upgraded hydrocarbon product having a significantly reduced nitrogen and sulfur content as the membrane permeate; mixing the solid adsorbent material with aromatic solvent to remove and stabilize the sulfur and nitrogen compounds; transferring the solvent mixture to a fractionation tower to recover the solvent, which can be recycled for use in the process; and recovering the hydrocarbons that are rich in sulfur and nitrogen for processing in a relatively small high-pressure hydrotreating unit or transferring them to a fuel oil pool for blending.