Abstract: A control device and a method for controlling an exhaust gas aftertreatment system comprising a diesel particulate filter is provided. The method comprises a step of, in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be equal to or less than 600 ppm. An exhaust gas aftertreatment system as well as a vehicle comprising the control device are also described.

Abstract: The present disclosure relates to a method of compacting an ash deposited in a particulate filter for a vehicle exhaust gas system, the method includes the steps of: a) providing a low-temperature melting salt to the particulate filter, thereby forming a mixture of the ash and the low-temperature melting salt: and b) heating the particulate filter to a compaction temperature, thereby compacting the mixture of the ash and the low-temperature melting salt. The disclosure further relates to engine oils, dosage products, engine systems and vehicles for implementing such a method.

Abstract: The present invention relates to use of a lubrication oil that forms water-soluble ash when combusted in an engine system, where the engine system comprises an internal combustion engine; an exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, including the water-soluble ash; and an exhaust gas conduit to lead exhaust gases from the internal combustion engine to the exhaust gas system, and to collect condensed water formed by a cold start and/or a cold operation of the internal combustion engine and lead the condensed water through the diesel particulate filter, thereby dissolving and removing the water-soluble ash from the diesel particulate filter.

Abstract: The present disclosure relates to a method of compacting an ash deposited in a particulate filter for a vehicle exhaust gas system, the method comprising the steps of: a) providing a low-temperature melting salt to the particulate filter, thereby forming a mixture of the ash and the low-temperature melting salt: and b) bringing the particulate filter to a compaction temperature, thereby compacting the mixture of the ash and the low-temperature melting salt. The disclosure further relates to engine oils, dosage products, engine systems and vehicles for implementing such a method.

Abstract: An engine system is provided that uses lubrication oil that forms water-soluble ash when combusted. The engine system comprises an internal combustion engine lubricated by the lubrication oil; an exhaust gas system for cleaning exhaust gases from the internal combustion engine, the exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, wherein the particulate matter comprises the water-soluble ash; an exhaust gas conduit to lead exhaust gases from the internal combustion engine to the exhaust gas system; and condensation means to accumulate condensed water and/or to form an increased amount of condensed water and arranged in fluid connection with the exhaust gas flow upstream of the diesel particulate filter. The exhaust gas conduit is arranged to collect condensed water and lead the condensed water through the diesel particulate filter, thereby dissolving and thus removing the water-soluble ash from the diesel particulate filter.

Abstract: The present invention relates to use of a lubrication oil that forms water-soluble ash when combusted in an engine system, where the engine system comprises an internal combustion engine; an exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, including the water-soluble ash; and an exhaust gas conduit to lead exhaust gases from the internal combustion engine to the exhaust gas system, and to collect condensed water formed by a cold start and/or a cold operation of the internal combustion engine and lead the condensed water through the diesel particulate filter, thereby dissolving and removing the water-soluble ash from the diesel particulate filter.

Abstract: An engine system comprising an internal combustion engine operated by a fuel and lubricated by a lubrication oil comprising at least one additive that renders ash formed by combustion of the lubrication oil ammonia-soluble ash; an exhaust gas system for cleaning an exhaust gas flow from the internal combustion engine , the exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, wherein the particulate matter comprises the ammonia-soluble ash; an exhaust gas conduit to lead exhaust gases from the internal combustion engine through the exhaust gas system; and an injection device to add a solvent comprising ammonia or an ammonia-forming compound into the exhaust gas flow upstream of the diesel particulate filter, wherein the exhaust gas conduit collects the solvent and lead the solvent through the diesel particulate filter, thereby dissolving and thus removing the ammonia-soluble ash from the diesel particulate filter.

Abstract: Device for collection of liquid samples has a pump (16) for pumping sampling liquid (24), a tube (7) for delivering the sampling liquid, sample container (23) for collection of the sampling liquid, and a transport device for moving the tube in succession from one sample container to the next sample container in at least one row of sample containers. An elastic cloth (22) is sealingly applied over the openings of the sample containers, and a slit (21), in which the tube (7) runs, is arranged in the cloth. The transport device is arranged to stop the tube when it is in a position over the sample container.

Abstract: A method is disclosed for the recovery of a peptide-containing compound from a solution by the use of a ligand attached to a carrier which ligand is capable by biospecific affinity of fixing onto the peptide-containing compound. The carrier which, for example, may be a soluble macromolecule, e.g., cellulose or dextran, with ligand attached thereto, is utilized in dissolved form. The choice of ligand is determined by the type of peptide-containing compound for which it is to be used. Example of ligands which may be used are immunoglobulins, Fc-receptors, certain surface receptors from bacteria, e.g., protein A from S. aureus, co-factors and certain sugar-containing proteins. The ligand may be attached to the carrier by bonds of a covalent character, which may be achieved by periodate activation and subsequent coupling or by diimidazole coupling.