摘要:
Process for the preparation of isopropanol is provided, wherein a benzene-containing feed of acetone is hydrogenated to obtain isopropanol and hydrogenation products of benzene.Combination of such a process with a process for the preparation of phenol and combination of such a process with a series of separation steps is provided.
摘要:
A process for the manufacture of carbon disulphide comprising the following steps reacting carbon dioxide with hydrogen sulphide to form carbonyl sulphide and water; and absorbing at least a portion of the water with a sorbent, leaving a mixture comprising carbonyl sulphide, carbon dioxide, and hydrogen sulphide.
摘要:
A process for the preparation of a catalyst or catalyst precursor, comprising the steps of: (a) admixing: (i) a catalytically active metal or metal compound (ii) a carrier material (iii) a gluing agent; and (iv) optionally one or more promoters, and/or one or more co-catalysts; (b) forming the mixture of step (a); and (c) drying the product of step (b) for more than 5 hours at a temperature up to 100 C to form the catalyst or catalyst precursor. The catalyst material mixture does not need to be calcined after forming to achieve the required minimum strength for use in a suitable reaction, such as Fischer Tropsch.
摘要:
A system for producing oil and/or gas from an underground formation comprising a first array of wells dispersed above the formation; a second array of wells dispersed above the formation; wherein the first array of wells comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation while the second array of wells comprises a mechanism to produce oil and/or gas from the formation for a first time period; a means to convert at least a portion of the miscible enhanced oil recovery formulation within the formation into another compound during a second time period; and a means to recover at least a portion of the another compound during a third time period.
摘要:
The invention provides a process for the manufacture of carbon disulphide by reacting carbon monoxide with elemental sulphur to form carbonyl sulphide and disproportionating the carbonyl sulphide formed into carbon disulphide and carbon dioxide, the process comprising contacting a gaseous stream comprising carbon monoxide with a liquid elemental sulphur phase containing a solid catalyst at a temperature in the range of from 250 to 700° C. to obtain a gaseous phase comprising carbonyl sulphide, carbon disulphide and carbon dioxide. The invention further provides the use of a liquid stream comprising carbon disulphide, carbonyl sulphide and carbon dioxide obtainable by such process for enhanced oil recovery.
摘要:
A process for the preparation of a catalyst precursor for use in a reactor, comprising the steps of: (a) coating one or more promoter(s) and/or one or more co-catalyst(s) onto a carrier material to form a coated carrier material; (b) combining a catalyst material with the coated carrier material of step (a); and (c) calcining the material of step (b).
摘要:
A method of manufacturing a catalyst, a catalyst precursor, or a catalyst support comprising: (a) mixing a refractory metal oxide or precursor thereof with a liquid to form a paste; (b) adding said paste to an extruder, the extruder having a die plate comprising one or more dies, each die having a plurality of apertures, the outlet of each aperture having a cross sectional area of 6 mm2 or less; (c) extruding the paste through the apertures to form catalyst support extrudates;wherein the inlet of the apertures has a greater cross sectional area than the outlet of said apertures; and wherein for at least one die the combined cross sectional area of all apertures at the inlet relative to the total cross sectional area of the die at the inlet is higher than 50%.
摘要:
The present invention provides a process for purifying natural gas, comprising removing mercaptans from a natural gas stream by a combination of an amine-based separation unit and a selective oxidation unit to obtain a purified natural gas stream, wherein at least part of the mercaptans are converted into at least elemental sulphur in the selective oxidation unit by selective catalytic oxidation.
摘要:
A system for producing oil and/or gas comprising a mechanism for releasing at least a portion of a sulfur containing compound into a formation; a first mechanism for converting at least a portion of the sulfur containing compound into a carbon disulfide formulation and/or a carbon oxysulfide formulation, the first mechanism for converting within the formation; and a second mechanism for converting at least a portion of the carbon disulfide formulation and/or a carbon oxysulfide formulation into another compound, the second mechanism for converting within the formation.
摘要:
A process for the preparation of a packed bed comprising an iron enriched cobalt catalyst for use in a Fischer-Tropsch reaction, the process comprising the steps of: (a) providing a packed bed with one or more catalyst particles comprising metallic cobalt; (b) contacting a part of the catalyst particle(s) in the packed bed with an iron containing compound. The process is preferably conducted in situ which conveniently results in an iron containing cobalt catalyst with a higher C5+ selectivity. In certain preferred embodiments the concentration of iron increases towards the surface of the resulting catalyst particles whereas the cobalt concentration is constant which further increases the selectivity of the catalyst to producing C5+ hydrocarbons.