摘要:
Contemplated devices and methods reduce heat loss and energy demand in a ring furnace by heating an additional oxygen containing stream in a supplemental oxygen conduit that is thermally coupled to a flue duct of a cooling zone. The so heated additional oxygen containing stream is then fed to the firing and/or pre-heat zones to increases combustion of volatiles and to reduce fuel demand by recyclmg waste heat to the firing and/or pre-heat zones.
摘要:
An oil spill cleanup device is described. The device includes a container and at least one flexible hollow elongated member extending from the container. The device floats in water and can be used to collect and separate oil from the contaminated water. Water is collected by the elongated member, which has several exterior one-way valves that allow contaminated water to enter the member. The contaminated water is pushed towards and into the container by the wave motions of the surrounding water. The elongated member has internal one-way valves that help to direct the contaminated water towards the container. Once in the container, the contaminated water can separate into water and oil due to differences in specific gravity. Multiple devices can be connected together to form a barrier for containing the contaminated water within a limited area.
摘要:
Plants and method of treating a combustion gas are presented in which NOx compounds are removed from the combustion gas to a predetermined level to thereby create a pre-cleaned combustion gas from which CO2 is removed in an absorber using an amine solvent. Preferably, the predetermined level of NOx compounds reduces nitro-amines, especially nitrosamine emission from the absorber to quantities of equal or less than 100 ppb.
摘要:
Oil-containing water is separated in a separator in an automated/continuous operation using devices that are free of moving parts in the separation container. Operation is preferably entirely controlled via adjustment of various flow rates, typically using flow control valves and/or feed pumps in response to measurement of a guided wave radar device or other IDLT.
摘要:
A plant for treating a feed gas (1) having an H2S concentration of less than 10% and comprising carbon dioxide, comprising: a first absorber (51) fluidly coupled to a regenerator (53), wherein the first absorber (51) is configured to promote absorption of hydrogen sulfide from a feed gas (1) by a portion of a lean hydrogen-sulfide-selective solvent (10, 19, 20, 21, 2), and wherein the regenerator (53) is configured to produce the lean hydrogen sulfide-selective solvent (10, 19, 20, 21, 2) and to promote formation of a hydrogen-sulfide rich gas (9) from the hydrogen-sulfide selective solvent (4, 7, 34, 35, 36, 8); a second absorber (72) fluidly coupled to the regenerator (53) and further configured to receive another portion of the lean solvent (10, 19, 20, 21, 32), wherein a portion (17) of the hydrogen sulfide-rich gas (9) of the regenerator (53) is fed to the first absorber (51) to thereby allow for an increase in a hydrogen sulfide concentration in the hydrogen-sulfide-rich gas (9) whose formation is promoted by the regenerator (53); a Claus plant (70) that receives another portion (18) of the hydrogen-sulfide-rich gas (9) of the regenerator (53) and produces a tail gas (30) that is fed to a hydrogenation unit (71) to produce a hydrogenated gas that is fed to the second absorber (72); and wherein the first and second absorbers (51, 52/72) are configured to allow production of an overhead product (3, 23, 24, 33) that is enriched in carbon dioxide and substantially depleted in hydrogen sulfide.
摘要:
Risk management systems and methods for plant EPCCOM are described. The system comprises a risk management database for storing risk objects, each object representing a real-world risk mitigation factor. A risk recommendation engine is communicatively coupled to the risk management database and is configured to provide recommendations for mitigating and managing risks as a function of efficacy attributes of the risk objects. The efficacy attributes represent the effectiveness of previously implemented and/or simulated risk mitigation strategies. The efficacy attributes are preferably multi-variable dependent and are defined by prioritizing and weighing different objectives.
摘要:
A syngas treatment plant is configured to remove sulfurous compounds and carbon dioxide from shifted or un-shifted syngas in a configuration having a decarbonization section and a desulfurization section. Most preferably, the solvent in the decarbonization section is regenerated and cooled by flashing, while the solvent is regenerated in the desulfurization section via stripping using external heat, and it is still further preferred that carbonylsulfide is removed in the desulfurization section via hydrolysis, and that the so produced hydrogen sulfide is removed in a downstream absorber.
摘要:
LNG is regasified with concurrent power production in systems and methods where the refrigeration content of the LNG condenses a low pressure working fluid vapor and in which the combined refrigeration content of the warmed LNG and low pressure working fluid condensate condenses an intermediate pressure working fluid vapor.
摘要:
Contemplated plant configurations and methods employ a vaporized and supercritical LNG stream at an intermediate temperature that is expanded, wherein refrigeration content of the expanded LNG is used to chill one or more recompressor feed streams and to condense a demethanizer reflux. One portion of the so warmed and expanded LNG is condensed and fed to the demethanizer as reflux, while the other portion is expanded and fed to the demethanizer as feed stream. Most preferably, the demethanizer overhead is combined with a portion of the vaporized and supercritical LNG stream to form a pipeline product.