Abstract: A reactor vessel for performing a steam reforming reaction having a vessel inlet for natural gas and steam; a vessel inlet for a hot gaseous medium; a vessel outlet for the steam reforming product; and a reactor space which is a bed of steam reforming catalyst, which reactor space inlet is fluidly connected to the inlet for natural gas and steam and at its outlet end fluidly connected with the outlet for the gaseous product; wherein inside the catalyst bed a passageway is provided fluidly connected to the vessel inlet for the hot gaseous medium for passage of hot gaseous mixture counter currently to the flow of reactants in the catalyst bed.

Abstract: A pipe part (100) for conveying a solid particulate material, comprising an outer tubular element (1) stretching along a longitudinal axis (A) and having first (9) and second (12) sections axially displaced from each other. An inner tubular element (20) is disposable inside the outer tubular element (1) and adapted for longitudinally conveying the solid particulate material from one end to another end. The inner tubular element (20) comprises an aeration-fluid-permeable wall part (23), and is sealingly connected with—and flexibly supported by—the first and second sections (9,12) to form an aeration fluid distribution chamber (40) between the first and second sections (9,12) and the inner (20) and outer (1) tubular elements. The aeration fluid distribution chamber (40) is provided with an aeration fluid inlet (15) to define an aeration fluid flow path (19) between the aeration fluid inlet (15) through the aeration-fluid-permeable wall part (23) via the aeration fluid distribution chamber (40).

Abstract: The invention pertains to a vessel (1) for storing particulate matter, such a pulverized coal or fly ash, comprising a main part (2) and, at its bottom portion, at least one discharge device (3), which comprises a converging outer shell (10) and a permeable, converging inner shell (14) positioned in the outer shell (10), the discharge device (3) being connected to the main part (2) by means of a first flange (9) at or near the lower rim of the bottom portion of the main port (2) and a second flange (11) at or near the upper rim of the outer shell (10). The inner shell (14) is secured to the inner wall of the outer shell (10) of the discharge device (3), preferably to the inner wall of the second flange (11). Thus the number of gaskets is reduced an/or the positioning of the inner shell becomes less critical.

Abstract: The invention pertains to a vessel (1) for storing particulate matter, such a pulverized coal or fly ash, comprising a main part (2) and, at its bottom portion, at least one discharge device (3), which comprises a converging outer shell (10) and a permeable, converging inner shell (14) positioned in the outer shell (10), the discharge device (3) being connected to the main part (2) by means of a first flange (9) at or near the lower rim of the bottom portion of the main port (2) and a second flange (11) at or near the upper rim of the outer shell (10). The inner shell (14) is secured to the inner wall of the outer shell (10) of the discharge device (3), preferably to the inner wall of the second flange (11).

Abstract: Sluice vessel (1) for feeding solid particulates into a pressurized pressure vessel, the sluice vessel (1) having a low pressure state and a high pressure state, the sluice vessel (1) comprising means for charging the sluice vessel with a load of the solid particulates when the sluice vessel is in its low pressure state, at least one discharge port (4), and pressurising means (6) for increasing the pressure inside the vessel by bringing a pressurising fluid into the vessel, to bring the vessel into its high pressure state before discharging the load via the discharge port (4), whereby the pressurising means (6) comprises one or more pressurising fluid inlet means arranged to be submerged under the load of solid particulates.

Abstract: The invention pertains to a vessel (1) for storing particulate matter, such as pulverised coal or fly ash, comprising a main part (2) and, at its bottom portion, at least one discharge device (3), which comprises a converging outer shell (10) and a permeable, converging inner shell (14) positioned in the outer shell (10), the discharge device (3) being connected to the main part (2) by means of a first flange (9) at or near the lower rim of the bottom portion of the main port (2) and a second flange (11) at or near the upper rim of the outer shell (10). The inner shell (14) is secured to the inner wall of the outer shell (10) of the discharge device (3), preferably to the inner wall of the second flange (11). Thus, the number of gaskets is reduced and/or the positioning of the inner shell becomes less critical.

Abstract: A reactor vessel for performing a steam reforming reaction having a vessel inlet for natural gas and steam; a vessel inlet for a hot gaseous medium; a vessel outlet for the steam reforming product; and a reactor space which is a bed of steam reforming catalyst, which reactor space inlet is fluidly connected to the inlet for natural gas and steam and at its outlet end fluidly connected with the outlet for the gaseous product; wherein inside the catalyst bed a passageway is provided fluidly connected to the vessel inlet for the hot gaseous medium for passage of hot gaseous mixture counter currently to the flow of reactants in the catalyst bed.

Abstract: A reactor vessel for performing a steam reforming reaction having a vessel inlet for natural gas and steam; a vessel inlet for a hot gaseous medium; a vessel outlet for the steam reforming product; and a reactor space which is a bed of steam reforming catalyst, which reactor space inlet is fluidly connected to the inlet for natural gas and steam and at its outlet end fluidly connected with the outlet for the gaseous product; wherein inside the catalyst bed a passageway is provided fluidly connected to the vessel inlet for the hot gaseous medium for passage of hot gaseous mixture counter currently to the flow of reactants in the catalyst bed.

Abstract: A process for the preparation of hydrogen and carbon monoxide from a carbonaceous feedstock by: (a) partially oxidizing the feedstock in a vertically oriented tubular partial oxidation reactor vessel having a burner at its upper end thereby obtaining a first gaseous product of hydrogen and carbon monoxide; (b) catalytic steam reforming a carbonaceous feedstock in the presence of steam in a convective steam reformer zone thereby obtaining a steam reformer product; (c) reducing the temperature of the product of step (a) by mixing this product with the product of step (b); (d) contacting the mixture obtained in step (c) with a post reforming catalyst; and (e) providing the required heat for the convective steam reforming reaction zone in step (b) by convective heat exchange between the mixture obtained in step (d) and the steam reformer reactor zone thereby obtaining a hydrogen and carbon monoxide containing gas having a reduced temperature.

Abstract: A heat exchanger is provided having a shell, tubes, a tubesheet, partition box having a ring, and compression bolts. The heat exchanger includes resilient elements of compacted graphite or compacted carbon-graphite which are located between the ends of the compression bolts and the partition-box ring to aid in preventing leakage during changes in operating conditions.