Abstract: Installation for gas treatment by a liquid phase comprising a) a column (C) that comprises means (1) for introducing gas at one end of said column, means (9) for drawing off gas from the other end of column (C) and, from upstream to downstream in the direction of circulation of the liquid phase: a first internal (2) that comprises means for distribution of a liquid phase, a first bed (6) that comprises a packing or catalytic particles, a second internal (3) that comprises means for separating liquid/gas mixture (19, 20) that is obtained from first bed (6), first means (32, 4) for collecting and evacuating the separated liquid phase, means (100) for passing through internal (3) of the treated gas, and distribution means (31, 101) of a liquid phase with said gas, a second bed (8), second means (10) for collecting and evacuating the liquid phase at the lower outlet of column (C), b) Means for recycling the collected liquid phase.

Abstract: The method allows to remove mercaptans contained in a gaseous feed comprising hydrocarbons by carrying out the following stages: a) contacting, in a reactor R1, gaseous feed 1 with a liquid stream 13 comprising olefins, in the presence of a first acid catalyst so that the mercaptans react with the olefins so as to form sulfides, b) discharging an effluent 3 from reactor R1 and separating the effluent into a gas phase and a liquid phase so as to obtain a mercaptan-depleted treated gas 4 and a sulfide-laden liquid, c) separating the sulfide-laden liquid into a first fraction 6 and a second fraction 5, the volume flow rate of first fraction 6 being at least three times higher than the volume flow rate of second fraction 5, d) recycling first fraction 6 to stage a) as a first portion of said liquid stream to be fed into said reactor R1, e) regenerating second fraction 5 by cracking so as to obtain a sulfide-depleted second fraction 2 that is recycled to stage a) as a second portion of said liquid stream.

Abstract: The process of the invention describes a set of steps for preparing a solid lignocellulosic biomass type feed, alone or mixed with a liquid hydrocarbon phase with a view to supplying a unit for gasification of said feed. The various steps include drying, torrefaction, milling and constituting a suspension of particles of biomass in a hydrocarbon cut.

Abstract: The invention relates to a method of pretreating a natural gas, water-saturated or not, essentially comprising hydrocarbons, a substantial amount of hydrogen sulfide and possibly carbon dioxide. The method according to the invention comprises an H2S-rich stream recycling stage.

Abstract: The method allows pretreatment of an acid gas that can comprise more than 10% H2S, for example a natural gas or a gas associated with the production of a crude petroleum effluent. The gas is dehydrated in unit DH, then cooled by heat exchangers E9 to E12 and by expansion carried out through valve V7. Cooling allows part of the H2S contained in the gas to be condensed. The condensates are separated from the gas in drum B1. The liquid recovered at the bottom of drum B1 is pumped and injected into well P to be sequestered in an underground reservoir or a geologic structure. The gas discharged at the top of drum B1 is depleted in H2S. This gas is sent through line 43 to a treating site in order to be subjected to additional treatments prior to being used.

Abstract: The invention relates to a method for treating a natural gas, saturated or not with water, containing essentially hydrocarbons, a substantial amount of hydrogen sulfide and possibly carbon dioxide. The method of the invention comprises a condensation stage intended to condense a major part of the water, a distillation stage wherein a gaseous effluent depleted in hydrogen sulfide and substantially free of water is recovered, and a contacting stage wherein the gaseous effluent from the previous stage is contacted with a solvent so as to obtain a treated gas substantially free of hydrogen sulfide and possibly of carbon dioxide.

Abstract: The natural gas is successively contacted in column CA with a relatively methanol-rich solvent flowing in through line 4, then with a relatively poor solvent flowing in through line 9. The acid gas-containing solvent recovered through line 3 at the bottom of column CA is expanded through valves V1 and V2 to release acid gases through line 6. A fraction of the expanded solvent is distilled in column CR. The regenerated solvent obtained at the bottom of column CR is sent to the top of column CA through line 9. A second fraction of the expanded solvent is mixed with a solvent drawn off from column CR at an intermediate point between the bottom and the top of this column. This mixture of solvents is sent through line 4 into column CA.

Abstract: Installation for gas treatment by a liquid phase comprising a) a column (C) that comprises means (1) for introducing gas at one end of said column, means (9) for drawing off gas from the other end of column (C) and, from upstream to downstream in the direction of circulation of the liquid phase: a first internal (2) that comprises means for distribution of a liquid phase, a first bed (6) that comprises a packing or catalytic particles, a second internal (3) that comprises means for separating liquid/gas mixture (19, 20) that is obtained from first bed (6), first means (32, 4) for collecting and evacuating the separated liquid phase, means (100) for passing through internal (3) of the treated gas, and distribution means (31, 101) of a liquid phase with said gas, a second bed (8), second means (10) for collecting and evacuating the liquid phase at the lower outlet of column (C), b) Means for recycling the collected liquid phase.

Abstract: The invention relates to a method for treating a natural gas, saturated or not with water, containing essentially hydrocarbons, a substantial amount of hydrogen sulfide and possibly carbon dioxide. The method of the invention comprises a condensation stage intended to condense a major part of the water, a distillation stage wherein a gaseous effluent depleted in hydrogen sulfide and substantially free of water is recovered, and a contacting stage wherein the gaseous effluent from the previous stage is contacted with a solvent so as to obtain a treated gas substantially free of hydrogen sulfide and possibly of carbon dioxide.

Abstract: A process for pretreating a very acid natural gas containing a substantial amount of hydrogen sulfide (H2S), possibly combined with carbon dioxide (CO2), includes at least a stage wherein the initial natural gas is contacted in a distillation column with a liquid condensate itself resulting from cooling of the gaseous fraction obtained during the contacting stage. This solution allows to eventually recover at a lower cost a gas enriched in methane, depleted in hydrogen sulfide and freed from substantially all of the water it contains, and a liquid phase containing most of the hydrogen sulfide, substantially all of the water and depleted in hydrocarbon. Control of the thermodynamic conditions during the stages that characterize the process, according to the water content of the gas during treatment, allows progressive exhaustion of the water contained in the gas while preventing hydrates formation.

Abstract: The natural gas is successively contacted in column CA with a relatively methanol-rich solvent flowing in through line 4, then with a relatively poor solvent flowing in through line 9. The acid gas-containing solvent recovered through line 3 at the bottom of column CA is expanded through valves V1 and V2 to release acid gases through line 6. A fraction of the expanded solvent is distilled in column CR. The regenerated solvent obtained at the bottom of column CR is sent to the top of column CA through line 9. A second fraction of the expanded solvent is mixed with a solvent drawn off from column CR at an intermediate point between the bottom and the top of this column. This mixture of solvents is sent through line 4 into column CA.

Abstract: In a process for treating a gas containing acid gases, the gas is contacted with a methanol-containing aqueous phase and is then contacted in an absorption column with a mixture of solvents including mehtanol, water and a solvent heavier than methanol. Then, the mixture of solvents is at least partly regenerated through pressure reduction and/or heating. The treated gas is cooled by producing at least a methanol-containing aqueous phase that is at least partly recycled. The mixture of solvents flowing out at the bottom of the absorption column is cooled, then re-introduced at a higher level of the absorption column so as to control the temperature in the absorption column.

Abstract: The invention is directed to fabric-based inserts and layers for use with tires in order to provide an improved level of puncture resistance to the tire. Disclosed embodiments of the invention include tire anti-puncture layers including puncture-resistant layers that comprise a single or multiple layers of fabric. Preferably, for low cost and low abrasion, the puncture-resistant layers comprise fibers having a tensile strength or tenacity of less than about 15 g/denier. In some preferred constructions, especially where the puncture-resistant layer comprises a single layer of fabric, the puncture-resistant layer comprises a high cover factor, tightly woven fabric, for example having a round packed cover factor of at least about 40% of full in the warp direction and at least about 65% of full in the fill direction.

Abstract: Process for pretreating a very acid natural gas containing a substantial amount of hydrogen sulfide (H2S), possibly combined with carbon dioxide (CO2), comprising at least a stage wherein the initial natural gas is contacted in a distillation column with a liquid condensate itself resulting from cooling of the gaseous fraction obtained during said contacting stage. This solution allows to eventually recover at a lower cost a gas enriched in methane, depleted in hydrogen sulfide and freed from substantially all of the water it contains, and a liquid phase containing most of the hydrogen sulfide, substantially all of the water and depleted in hydrocarbon. Control of the thermodynamic conditions during the stages that characterize the process, according to the water content of the gas during treatment, allows progressive exhaustion of the water contained in said gas while preventing hydrates formation.

Abstract: Process for treating a gas containing acid gases, wherein:

Abstract: A connecting dropper provides a mechanical articulated and electrical linkage between a carrying cable and a conductor, particularly a contact wire of an overhead electrical traction line. The dropper wire provides a continuous electrical connection between the carrying cable and the contact wire. The dropper wire (14) is connected to respective connecting clips (18,18') providing the connection to the carrying cable (10) and the contact wire (12) via sleeves (20,20';32,32') in which the ends of the dropper wire are pinched, and the connecting clips (18,18') consist of two detachable parts that are snapped together to grip the carrying cable (10) and the contact wire (12) respectively.