Abstract: Systems and methods include acquisition of a database system workload comprising a plurality of database queries, replay of the database system workload on each of a plurality of database systems to generate a plurality of failed events, each of the plurality of failed events associated with a plurality of attributes, assignment of a root cause to each of the plurality of failed events, and training of a classification model, based on the plurality of failed events an assigned root causes, to infer an output root cause based on an input plurality of attributes.

Abstract: A continuous process for upgrading a heavy hydrocarbon includes the steps of: obtaining a heavy hydrocarbon; heating the heavy hydrocarbon; contacting the heavy hydrocarbon with a solvent at upgrading conditions so as to produce a first product comprising a mixture of upgraded hydrocarbon and solvent and a second product comprising asphaltene waste and water; continuously feeding the first product and the second product to a first separator; heating the first product; and continuously feeding the first product to a second separator to separate the upgraded hydrocarbon from the solvent. A system is also provided.

Abstract: A continuous process for upgrading a heavy hydrocarbon includes the steps of: obtaining a heavy hydrocarbon; heating the heavy hydrocarbon; contacting the heavy hydrocarbon with a solvent at upgrading conditions so as to produce a first product comprising a mixture of upgraded hydrocarbon and solvent and a second product comprising asphaltene waste and water; continuously feeding the first product and the second product to a first separator; heating the first product; and continuously feeding the first product to a second separator to separate the upgraded hydrocarbon from the solvent. A system is also provided.

Abstract: A continuous process for upgrading a heavy hydrocarbon includes the steps of: obtaining a heavy hydrocarbon; heating the heavy hydrocarbon; contacting the heavy hydrocarbon with a solvent at upgrading conditions so as to produce a first product comprising a mixture of upgraded hydrocarbon and solvent and a second product comprising asphaltene waste and water; continuously feeding the first product and the second product to a first separator; heating the first product; and continuously feeding the first product to a second separator to separate the upgraded hydrocarbon from the solvent. A system is also provided.

Abstract: A process for upgrading a heavy hydrocarbon includes the steps of obtaining a heavy hydrocarbon; contacting the heavy hydrocarbon with a solvent at upgrading conditions so as to produce a first product comprising a mixture of upgraded hydrocarbon and solvent and a second product comprising asphaltene waste, water and solvent; and feeding the first product to a separator to separate the upgraded hydrocarbon from the solvent. A system is also provided.

Abstract: A continuous process for upgrading a heavy hydrocarbon includes the steps of: obtaining a heavy hydrocarbon; heating the heavy hydrocarbon; contacting the heavy hydrocarbon with a solvent at upgrading conditions so as to produce a first product comprising a mixture of upgraded hydrocarbon and solvent and a second product comprising asphaltene waste and water; continuously feeding the first product and the second product to a first separator; heating the first product; and continuously feeding the first product to a second separator to separate the upgraded hydrocarbon from the solvent. A system is also provided.

Abstract: A process for upgrading a heavy hydrocarbon includes the steps of obtaining a heavy hydrocarbon; contacting the heavy hydrocarbon with a solvent at upgrading conditions so as to produce a first product comprising a mixture of upgraded hydrocarbon and solvent and a second product comprising asphaltene waste, water and solvent; and feeding the first product to a separator to separate the upgraded hydrocarbon from the solvent. A system is also provided.

Abstract: A method for forming a stable bimodal emulsion comprises admixing a viscous hydrocarbon with an aqueous buffer solution under controlled conditions so as to obtain a first monomodal emulsion having an average hydrocarbon droplet size of less than 5 microns. The monomodal emulsion is thereafter diluted with water and additional viscous hydrocarbon is admixed with the diluted monomodal emulsion under a second mixing energy sufficient to produce a bimodal emulsion wherein the average small hydrocarbon droplet size is less than or equal to 5 microns and the average large hydrocarbon droplet size is less than or equal to about 30 microns.

Abstract: The present invention relates to an improved sorbent for use in removing effluents such as sulfur dioxide from combustion gas streams. The sorbent comprises a hydroxide formed from an alkaline-earth based material such as lime and having incorporated therein an iron and organic compound promotion addition to enhance its ability to remove effluents from the gas stream. The sorbent is formed by co-dissolving an iron salt and an organic compound in a hydration solution and thereafter mixing the hydration solution containing the iron salt and the organic compound with an alkaline-earth based material. The sorbent thus produced may be injected into a gas stream in either dry or slurry form to remove the effluents.

Abstract: A process for the preparation of stable hydrocarbon in water emulsions employing heavy crudes and bitumens having high viscosities and the resulting viscosity stable emulsion products.