Abstract:
A system of monitoring a black cell environment using sensors is presented, in which the sensors can be easily replaced during a sealed period of the black cell environment. The black-cell monitoring system includes at least one sealed vessel that is disposed within the black cell environment. The vessel is configured to store a hazardous mixed substance and is sealed from the external environment for a pre-determined amount of time. The black-cell monitoring system also includes at least one tubing that extends from the outside of the vessel to the inside of the vessel. The black-cell monitoring system also includes a fiber optic cable that is disposed within the lumen of the tubing. At least a portion of the fiber optic cable is disposed within a portion of the tubing located inside the sealed vessel.
Abstract:
Plants and methods are presented for crude feed pre-processing before feeding the crude feed into a crude unit or vacuum unit. Pre-processing is preferably achieved with a combination of a preflash drum and a preflash column that allows for high-temperature treatment of the liquids and separate vapor phase handling, which advantageously enables retrofitting existing plants to accommodate lighter crude feeds.
Abstract:
A contiguous duct assembly has first and second ducts that share at least one common wall element. An expansion joint is formed at the end of the contiguous duct assembly using a connector element that extends with respective portions into the internal spaces of the first and second ducts. First and second expansion fabrics are coupled to the respective portions from the inside of the ducts using fasteners that are accessible from and disposed within the internal space of the first and second ducts.
Abstract:
Contemplated gas-liquid separators and especially subsea gas-liquid separators have a main pipe with a plurality of descending branch pipes that are fluidly coupled to the main pipe and each other such as to allow disengagement of the gas into the main pipe while liquid and sand descend into the lower ends of the branch pipes. Sand accumulation in the lower ends of the branch pipes is preferably prevented by lateral serial flow of liquid and sand from one branch pipe to the next and use of a flush liquid that is drawn from one or more branch pipes.
Abstract:
A natural gas liquids plant uses a demethanizer and a deethanizer in a two-column or single column configuration that can be used for ethane recovery and ethane rejection. During ethane recovery, 95% ethane recovery and 99% propane recovery are achieved, while during ethane rejection the sales gas Wobbe Index requirement is maintained while maintaining 95% propane recovery. A residue gas recycle exchanger is most preferably configured to use the demethanizer overhead product to either cool a portion of the residue gas and a portion of the feed gas during ethane recovery, or to cool a portion of the feed gas using two distinct heat transfer areas to produce a feed gas reflux at significantly lower temperature.
Abstract:
Contemplated configurations and methods are presented for effectively controlling the temperature in an oxy-fuel combustion system. Contemplated systems preferably introduce water independent of the fuel and oxygen into the combustion chamber. Water is injected through one or more nozzles, wherein water is atomized or sprayed, creating boundary layer cool zones in a boiler system and wherein water is recovered.
Abstract:
A risk analysis system having a risk analysis engine that can identify a set of risks for a program based on a constructed program model. The program model can be based on known, historical programs using current program attribute information. The risks can be identified by executing one or more simulations using the program model. The outcome of the simulation can be used to identify individual drivers of risk, which can in turn be used to identify one or more previously undetected and unanticipated black swan-level risks facing the program.
Abstract:
Overflow systems are described for non-atmospheric pressure, slurry tank, which can reduce stagnation of excess flurry in an overflow pipe. In such systems, stagnation of the excess slurry in the overflow pipe is reduced via a recirculation conduit that allows for recirculation of at least a portion of the slurry from the tank. Moreover, an air capture unit collects a portion of an oxidation air from the tank. As a result, the fluid in the overflow system is representative of the aerated slurry within the tank.
Abstract:
Methods, devices, and systems for providing certification of friction stir welds are disclosed. A sensor is used to collect information related to a friction stir weld. Data from the sensor is compared to threshold values provided by an extrinsic standard setting organizations using a certification engine. The certification engine subsequently produces a report on the certification status of the weld.
Abstract:
Configurations, systems, and methods for a gas-to-liquids plant are presented in which the energy demand for natural gas reformation is provided at least in part by biomass gasification to reduce or eliminate net carbon emissions. Preferred plants, systems, and methods may recycle various process streams to further reduce water demand, improve the hydrogen/carbon ratio of a feed stream to a Fischer-Tropsch process, and recover and/or recycle carbon dioxide.