Abstract: A broad aspect of the present disclosure relates to a process for conversion of a feedstock containing at least 5 wt % aromatics, originating from thermal decomposition of solids, comprising the steps of directing the feedstock to contact a material catalytically active in hydrodeoxygenation under hydrodeoxygenation conditions in the presence of dihydrogen, to provide a deoxygenated intermediate, directing at least an amount of the deoxygenated intermediate to contact a material catalytically active in hydrodearomatization under hydrodearomatization conditions in the presence of dihydrogen, to provide an dearomatized intermediate. This has the associated benefit of converting a feedstock such as pyrolysis oil to a product or an intermediate compatible with diesel fuel requirements with a minimal yield loss.

Abstract: A process and reactor system are provided for production of a CO-containing stream. The process includes the steps of supplying a carbon-containing first feed and an optional co-feed to the electrically-heated reactor and allowing them to undergo a CO-forming reaction, while heating the electrically-heated reactor by means of electrical power; and outletting a CO-containing stream from electrically-heated reactor, wherein the content of sulfur-containing species in the total gas mixture supplied to the electrically-heated reactor—measured in terms of H2S—is in the range of 1-50 ppm.

Abstract: A plant and process for producing a hydrogen rich gas are provided, said process comprising the steps of: steam reforming a hydrocarbon feed into a synthesis gas; shifting the synthesis gas and conducting the shifted gas to a hydrogen purification unit, subjecting CO2-rich off-gas from the hydrogen purification unit to a carbon dioxide removal and recycling CO2-depleted off-gas rich in hydrogen to the process.

Abstract: Process and plant for producing a gasoline product from an oxygenate feed stream, the process including the provision of a methanol-to-gasoline reactor in a gasoline synthesis loop. The process and plant may include combination of an overhead stream from a de-ethanizer, e.g. a fractionation column, located downstream the cooling and separation of the raw gasoline produced in the methanol-to-gasoline reactor, in the gasoline synthesis loop.

Abstract: A gas heating section and a reforming section are provided, in which flue gas is used as an anode (oxygen) sweeping gas in an electrolysis unit. The resulting combined gas stream is fed to the gas heating section/reforming section as combustion gas stream. By continuously feeding the combined gas stream to said at least one burner and combusting it, a flue gas stream of high purity CO2 can be obtained. A chemical plant, and a process for providing a syngas stream are also provided.

Abstract: The invention relates to a process and plant for removing one or more impurities from a feedstock, said process comprising the step of contacting said feedstock with a guard bed comprising a porous material, thereby providing a purified feedstock; wherein the porous material comprises at least 80 wt % of magnesium aluminate spinel (MgAl2O4), titania (TiO2), or a mixture thereof; and the porous material has a total pore volume of 0.50-0.90 ml/g, as measured by mercury intrusion porosimetry. The invention envisages also a process and plant in which the guard bed comprises a porous material which is at least 80 wt % SiO2.

Abstract: Process and plant for producing a synthesis gas by catalytic steam reforming of a hydrocarbon feedstock in a steam reforming unit, wherein water is removed from the synthesis gas as a process condensate, wherein boiler feed water is introduced in the process, and wherein said process or plant produces at least two separate steam streams: a pure steam which is generated from at least a portion of said boiler feed water by the cooling of synthesis gas, and a process steam which is generated by evaporating at least a portion of the process condensate by using synthesis gas, optionally together with pure steam and/or flue gas from the steam reforming unit.

Abstract: Method and system for producing a hydrogen product from ammonia, comprising: optionally at least one pre-cracking reactor, such as an adiabatic pre-cracking reactor, arranged to receive an ammonia feed stream, thereby producing a partly converted ammonia feed stream comprising ammonia, hydrogen and nitrogen; an ammonia cracking reactor such as an electrically heated reactor. The reactor is arranged to receive the partly converted ammonia feed stream or the ammonia feed stream for producing an effluent gas stream comprising hydrogen and nitrogen and optionally also unconverted ammonia; and a hydrogen recovery unit arranged to receive the effluent gas stream for producing the hydrogen product and an off-gas stream comprising hydrogen, nitrogen and optionally unconverted ammonia.

Abstract: A composition including, on water free basis, at least 80 wt % molecules including from 8 to 35 C-atoms, the composition including, on water free basis, 9.5-12 wt % H, 3-45 wt % 0 and less than 5 wt ppm halogens, the use of such a composition as a marine fuel and a process for producing such a composition by partial hydrodeoxygenation.

Abstract: A process and process plant for partial hydroprocessing of a feedstock including oxygenates, including the steps of directing the feedstock, an amount of make-up hydrogen and a recycle gas to a catalytic hydrotreatment process under conditions converting 30-95% of oxygenates to hydrocarbons, to provide a partially hydroprocessed product stream, adding an amount of recycled wash water including at least 0.1 wt % oxygenates, to an amount of the hydroprocessed product stream, optionally in combination with a further amount of wash water, to provide a combined hydroprocessed product stream, cooling the combined hydroprocessed product stream and separating it in a vapor product fraction, a liquid aqueous fraction and a liquid product fraction, withdrawing as a waste stream a first amount of the liquid aqueous fraction either as a purge or by a purification process, directing as the amount of recycled wash water, at least a second amount of said liquid aqueous fraction.

Abstract: Process for the removal of particulate matter from an aqueous stream containing a concentrated acid, preferably concentrated sulfuric acid, the process including mechanical filtration by passing the aqueous stream through a filter unit, the filter unit including a metallic, ceramic or polymeric filter, or a filter including a filter aid on a septum. The aqueous stream is the exit stream of a sulfuric acid condenser, optionally the exit stream of a sulfuric acid concentrator arranged downstream the sulfuric acid condenser.

Abstract: A hydrogen plant and process for production of a hydrogen stream are provided. The hydrogen plant comprises a steam superheater, arranged to superheat at least a portion of a first steam stream from a steam drum, and thereby provide a superheated steam stream via heat exchange with a first shifted syngas stream. At least a first portion of said superheated steam stream is arranged to heat the first stream comprising hydrocarbons before said first stream is fed to the prereformer unit. In this manner, the use of fired heaters, or electrical heaters, can be reduced or avoided.

Abstract: A nickel-based alloy is coated with a silicate based nickel aluminide slurry diffusion coating.

Abstract: A process for regeneration of a process enclosure and a catalyst comprising precipitated ammonium salts, and a process and a process plant for continuous hydrotreating a feedstock comprising nitrogen and halides.

Abstract: A process for producing synthesis gas, the process comprising the steps of a) reforming a hydrocarbon feed in a reforming section thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O and impurities comprising ammonia; b) shifting the synthesis gas in a shift section comprising one or more shift steps in series to a shifted synthesis gas; c) separating from the shifted synthesis gas a process condensate originating from cooling and optionally washing of the shifted synthesis gas; d) passing the process condensate to a condensate steam stripper, wherein dissolved shift byproducts comprising ammonia, methanol and amines formed during shifting the synthesis gas are stripped out of the process condensate using steam resulting in a stripper steam stream, e) adding a part of the stripper steam stream from the process condensate steam strip-per to the hydrocarbon feed and/or to the synthesis gas downstream the reforming section, up-stream the last shift step, wherein the remaining part of stripper st

Abstract: The present application relates to a process for producing a catalyst, said process comprising the steps of: providing a carrier and following modifying said carrier by a first impregnation with at least one alkaline earth metal in a first metal precursor solution. The first metal precursor is decomposed to form at least one metal oxide or metal hydroxide thereby obtaining a modified carrier and a second impregnation is carried out by incipient wetness by a second precursor solution comprising at least one metal Me in a second solution. Finally the second precursor is decomposed thereby obtaining a catalyst body having an enrichment of the at least one metal Me in the outer shell of the catalyst body, said at least one metal being present in a concentration having either as an egg-shell profile or a hammock profile.

Abstract: Method for the control of pressure in a loop for the preparation of ammonia or methanol by means of an anti-surge control valve of a compressor and/or a compressor flow regulation valve for the recirculation of loop recirculation gas at variating flow supply of fresh synthesis gas.

Abstract: A thermal configuration for use during sulfidation and operation is disclosed which may involve multiple of the following heating steps, (a) heating a process feed by a charge heater, heating (b) a process feed stream or a recycle oil stream by heat exchange with a process effluent, heating (c) a process feed stream or a recycle oil stream by heat exchange with a said process feed after having been heated in the charge heater. Furthermore, the steps may be made independent by controlling the ratio of the streams directed to (b) or (c), controlling an amount of feed stream or recycle oil stream by-passed around the heating of (b) or (c) and controlling the temperature of step (a).

Abstract: A method for the control of pressure in a loop for the preparation of ammonia or methanol by using an anti-surge control valve of a compressor and/or a compressor flow regulation valve for the recirculation of loop recirculation gas at variating flow supply of fresh synthesis gas.

Abstract: The present invention relates to a method for thermolytic fragmentation of a sugar into C1-C3 oxygenates, comprising cooling the fragmentation product downstream of the reactor to a cooling temperature of from 230° C. to 390° C. and then separating solids from the fragmentation product cooled to the cooling temperature. The present invention also relates to a system for performing the thermolytic fragmentation of a sugar into C1-C3 oxygenates. The method and the system are suitable for industrial scale production.