Abstract: Methods of cleaning an N-methyl-2-pyrrolidone (NMP) purification and recovery system having an NMP-containing chemical waste stream, a separation tower fluidically coupled with the chemical waste stream, a reflux drum fluidically coupled with an upper section of the separation tower, a reboiler fluidically coupled with a lower section of the separation tower, and a purified NMP stream fluidically coupled with the reboiler. The methods include injecting a cleaning solution into the reflux drum and the reboiler with an amount of the cleaning solution sufficient to at least substantially fill the reflux drum and the reboiler, the cleaning solution comprising a solvent having a primary amine and a hydroxyl group, circulating the cleaning solution through at least the separation tower, the reflux drum, the reboiler for a period of time to solubilize foulants contained within the system, and draining the cleaning solution having foulants solubilized therein from the system.

Abstract: A hose conducts high-temperature steam combined with cleaning solution in a cleaning operation. The hose comprises an external liner, an intermediate conduit, and an internal liner. The external liner comprises first braiding and is disposed along a longitudinal length of the hose. The intermediate conduit is disposed in the external liner along the longitudinal length of the hose. The intermediate conduit has a plurality of corrugations disposed laterally in the tubular wall of the intermediate conduit. The internal liner comprises second braiding and is disposed in the intermediate conduit along the longitudinal length of the hose. The internal liner provided a full bore for the hose configured to conduct the high temperature steam combined with the cleaning solution in a volatilized mixture.

Abstract: Disclosed is an improved process for removing heavy oil, bitumen and/or paraffinic materials in oil production or storage wells including onshore and offshore petroleum wells, petroleum residual disposal wells and Steam Assisted Gravity Drainage (SAGD) or Cyclic Steam Stimulation (CSS) producing wells used in the oil sands industry. This process helps restore the operating efficiency of organically contaminated hydrocarbon producing wells in a safe, fast and effective manner without the need to insert any equipment to mechanically remove organic contaminants. Used is a heated terpene-based chemical injected with or without steam following a hot water or steam pre-heat to create a very effective cleaning process.

Abstract: Disclosed is a novel process for interior cleaning and by cleaning, removing noxious gas and/or restoring the operating efficiency of organically contaminated hydrocarbon processing equipment in a safe and effective manner and in a very short period of time, without a need to manually enter an unsafe environment and mechanically remove organic contaminants. Used is a formulation of non-aqueous, monocyclic saturated terpene mixed with a non-ionic surfactant package. The terpene-based chemical is injected into organically contaminated equipment using a novel process involving high-pressure steam to form a very effective cleaning vapor.

Abstract: Disclosed is a novel process for interior cleaning and by cleaning, removing noxious gas and/or restoring the operating efficiency of organically contaminated hydrocarbon processing equipment in a safe and effective manner and in a very short period of time, without a need to manually enter an unsafe environment and mechanically remove organic contaminants. Used is a formulation of non-aqueous, monocyclic saturated terpene mixed with a non-ionic surfactant package. The terpene-based chemical is injected into organically contaminated equipment using a novel process involving high-pressure steam to form a very effective cleaning vapor.