Abstract: A method for removing organic sulfur compounds from a vent gas is described. Also described is an apparatus for absorbing organic sulfur compounds from vent gas.

Abstract: A compact sulfur recovery system is disclosed which includes an upflow orientation for the gases through a primary structure including a catalytic partial oxidation reaction zone, a first temperature-control zone, a first Claus catalytic reaction zone, a second temperature-control zone, a first liquid sulfur outlet, and a first effluent gas outlet. The upward flow of the gases puts the hottest gases in contact with the tubes and tube sheet in the waste heat boiler where there is greater confidence in having liquid water in most continuous therewith. In some embodiments, a secondary structure follows the primary structure and comprises a second Claus catalytic reaction zone, a third temperature-control zone, a second liquid sulfur outlet, and a second effluent gas outlet. One or more components of the system employ heat transfer enhancement material in the temperature-control zones, and one or more components deter accumulation of liquid sulfur in the Claus catalytic reaction zones.

Abstract: A process for purifying a light hydrocarbon stream containing H2S is disclosed in which the selective catalytic partial oxidation of the H2S component is carried out while the hydrocarbon components slip through substantially unconverted. A catalyst that favors the partial oxidation of H2S over conversion of the hydrocarbon component of a gaseous H2S-light hydrocarbon mixture is employed. Apparatus for selectively cleaning up light hydrocarbon streams containing low concentrations (e.g., less than 25 vol. %), and apparatus for selectively cleaning up light hydrocarbon streams having higher concentrations (e.g., greater than 25 vol. %) of H2S are also disclosed.

Abstract: The disclosed sulfur recovery system and process avoid some of the operational problems of conventional Claus plants and processes by replacing the reaction burner and furnace tube of a conventional Claus plant with a more efficient short contact time catalytic reactor assembly containing a SPOC™ catalyst that operates efficiently at elevated temperatures. Such Claus plant modification also reduces or avoids the negative effects of hydrocarbons, CO2 and ammonia in Claus sulfur plant feeds, and permits efficient processing of dilute to concentrated H2S feeds. The disclosed modification makes possible the expansion of Claus plant capacity at lower cost.

Abstract: Apparatus and process for recovering elemental sulfur from a H2S-containing waste gas stream are disclosed. The apparatus preferably comprises a first reaction zone for carrying out the catalytic partial oxidation of H2S, a second reaction zone for the catalytic partial reduction of any incidental SO2 produced in the first reaction zone, and a cooling zone including a sulfur condenser. According to a preferred embodiment of the process, a mixture of H2S and O2 contacts a catalyst in the first reaction zone very briefly (i.e, less than about 200 milliseconds) producing primarily S0 and H2O. Some SO2 is also present in the first stage product gas mixture. A reductant gas (e.g. CO, or CH4 or natural gas) is fed together with the first stage product gas mixture to a second catalytic reaction zone where the partial reduction of the SO2 component to elemental sulfur and CO2 is carried out.

Abstract: A multistage oxygen-added catalytic partial oxidation process and apparatus for converting H2S in an acid gas stream to elemental sulfur and water are disclosed. Each staged addition of oxygen or air at the top of the catalyst bed and at points along the catalyst bed maintain oxygen-limited H2S catalytic partial oxidation conditions whereby incidental SO2 production is minimized.

Abstract: A method for removing organic sulfur compounds from a vent gas is described. Also described is an apparatus for absorbing organic sulfur compounds from vent gas.

Abstract: A device for applying a patterning liquid to a web, particularly to a carpet web, has an exit slit with a plurality of valves distributed over the width of the web and arranged ahead of it, which can all be activated independent of one another, and which each supply the patterning liquid to a specific width section of the application slit. The valves are located as close as possible to the exit location so that the segment from the closing location of the valves to the exit location is as short as possible.

Abstract: A textile web, for example, a carpet web, is provided with a patterning agent including a thickening agent and subsequently steamed in a steamer. The agent residues remaining on the textile web are at least partially removed by mechanical means, and cleaned and decolorized in a cleaning unit, leaving a virtually pure thickening agent which can be reused for preparing a new batch of patterning agent in the batching tank.

Abstract: The present invention relates to the use of a modified fatty amine of formulaR--NR.sub.3 --(R.sub.1 --O).sub.n --R.sub.2 (1),whereinR is C.sub.9 -C.sub.24 alkyl or acyl, R.sub.1 is C.sub.2 -C.sub.4 alkylene, R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or acyl, R.sub.3 is hydrogen or (R.sub.1 --O).sub.m, n and m are each independently of the other an integer from 2 to 100, and (R.sub.1 --O).sub.n is n identical or different radicals (R.sub.1 --O), and (R.sub.1 --O).sub.m is m identical or different radicals (R.sub.1 --O),for reducing or preventing low molecular weight by-product deposits developing in the course of the polyester fiber material production process on textile materials consisting of polyester fibers or containing these fibers in blends with other fibers.

Abstract: A process and device are disclosed for moistening a moving web of material (10), in particular for moistening again a printed then dried printed material. As soon as possible after the thermal drying process is concluded, preferably in the area of the cooling cylinders, a moistening agent is pressed on one or both sides of the web of material (10) by an applicator (12) by means of a smooth cylinder (15), against a guiding element (11).

Abstract: An installation for the thermal drying of strips, sheets, etc., which are conveyed along a path over guide elements past dryer unit in a drying device. The installation has a cooling unit whose coolant is fed through suitable coolant lines to the guide elements in the drying zone and to the dryer units, from where the coolant is fed to a heat exchanger. The installation also has an air extractor to extract the air from the drying zone. In order to provide a space saving installation, the heat exchanger in the cooling unit is located in the vicinity of the air-extraction aperture of the air extractor, adjacent to the drying zone.

Abstract: In a steamer for the steaming of a web of textile material laden with liquid supplied by an applicator device, steam is continuously fed to the steamer. The quantity of steam fed to the steamer is calculated in dependence upon the amount of liquid previously applied to the web and accurately corresponds to the amount of steam necessary in order to heat the web of material to the steaming temperature.

Abstract: A process for the manufacture of coffee flavoring substances is described; this process comprises enzymatically proteolyzing soya meal, heating the proteolyzate and isolating the resulting water-soluble material from the reaction mixture. Furthermore, there are described: flavoring substance compositions which contain these novel coffee flavoring substances, foodstuffs and semi-luxury consumable which contain such coffee flavoring substances or flavoring substance compositions, and the use of the novel flavoring substance compositions or coffee flavoring substances for the flavoring of foodstuffs and semi-luxury consumables or as coffee substitutes.

Abstract: An apparatus for applying a treatment fluid, such as dye, onto an advancing web of material has a run-off surface sloping down toward the web that extends above and over the width of the web. The dye flows onto the web from the lower edge of the run-off surface. The dye is applied onto an upper zone of the run-off surface from individual nozzles, which are a constituent part of nozzle combs that are pivotable about a transverse axis between a first position disposed above the run-off surface and a second position over a run-off gutter.

Abstract: An apparatus for applying a treatment fluid on a web of material includes a run-off surface extending transversely over a web to be treated. The run-off surface slopes down obliquely onto the web and has an upper portion upon which treatment fluid applied thereto flows down over the run-off surface onto the web via the lower edge thereof. A flow homogenizing baffle is provided on the run-off surface. The baffle is formed from closely spaced deflection elements that even out any irregularities that exist in the fluid film flowing over the upper portion of the run-off surface.

Abstract: A process for the continuous measurement of the density of a liquid by means of an aerometer body swimming in the liquid is characterized by the feature that the liquid is allowed to flow periodically at an increased flow rate past the aerometer body in order to clean the same of foreign matter, gas bubbles or the like disturbing the measuring, with the measuring procedure being interrupted during this cleaning period. In an apparatus for performing this process, an aerometer body is surrounded in a measuring vessel by a partition wall at a small distance therefrom, and line is provided, through which liquid to be measured may be introduced at a relatively high flow rate into the space between the aerometer body and the partition wall in order to periodically clean the aerometer body.

Abstract: In apparatus for applying application liquid to a web of material moving therebelow, the apparatus including a pan, an application roll supported for rotation in said pan and a doctor blade which can be brought into contact with the edge of said roll to scrape liquid therefrom, the doctor blade being directed so that the liquid will flow in a film onto the web of material therebelow, the apparatus is made self supporting to permit it to be disposed directly above and closely adjacent to the web by a construction which includes: first and second side plates spaced apart with the roll extending between the side plates and supported in suitable bearings; a cross beam attached to said two side plates extending therebetween directly behind the roll, the pan being disposed between the plates and having a portion extending below the roll, with a plurality of rods attached to the inside of the bottom of the pan and supported by the cross beam; and a pan stiffener which is an integral portion of said pan secured to th

Abstract: Alkali metal salts of carboxylic acids containing from 2 to 20 carbon atoms are unique in comparison to salts of other elements, including stannous octoate, in their ability to retain catalytic activity when stored in the presence of rigid polyurethane foam precursors.

Abstract: A roadway with a noise protecting assembly for controlling sound emanating from the roadway. The assembly comprises a plurality of walls having a width disposed vertically above the roadway and a length disposed in a direction parallel to the center line of the roadway. The walls are laterally spaced with respect to each other across the width of a frame structure thereby forming intervals therebetween. The assembly is effective to prevent the direct path of sound from a source of noise on the roadway to objects in the vicinity of the roadway which is the source of the noise.