摘要:
An improved coal deashing process wherein a feed mixture comprising soluble coal products, insoluble coal products, and deashing solvent at a first temperature level is separated in a first separation zone into a first light fraction and a first heavy fraction comprising the insoluble coal products and some of the deashing solvent through admixing predetermined quantities of an additive with the feed mixture prior to separation to provide an improved yield of recoverable soluble coal products. Alternatively, the additive is admixed with the first light fraction prior to subsequent separations to provide an improved yield of recoverable soluble coal products.
摘要:
A coal deashing process wherein a feed mixture comprising soluble coal products, insoluble coal products and solvent is separated in a first separation zone into a first heavy phase and a first light phase comprising soluble coal products, solvent and some insoluble coal products. The first light phase is withdrawn and introduced into a second separation zone wherein it separates into a second heavy phase comprising insoluble coal products, soluble coal products and some solvent and a second light phase comprising soluble coal products and solvent. The second heavy phase is withdrawn and at least a portion is recycled to the first separation zone to increase the yield of separable soluble coal products ultimately recovered by the process. In alternate embodiments, additional solvent can be added to the first light phase before introduction into the second separation zone or the recycled portion of the second heavy phase may be introduced into a treatment zone before reintroduction into the first separation zone. The treatment zone effects an increase in the molecular weight of at least a portion of the recycled second heavy phase which facilitates subsequent separation in the first separation zone.
摘要:
An improved coal deashing process wherein coal is mixed with a first dissolving solvent, heated, solubilized and flashed to provide a prepared mixture. The flashing is effected at a temperature below about 650.degree. F. to increase the amount of the first dissolving solvent in the prepared mixture. The prepared mixture then is mixed with a second dissolving solvent to produce a feed mixture which is subjected to two or more successive phase separations. Insoluble coal products present are separated from the feed mixture in a first separation zone and the soluble coal products are recovered from the first and the second dissolving solvents in a second separation zone. The second dissolving solvent is recovered from the first and the second heavy fractions and the second light fraction for recycling to aid in producing the feed mixture. The first dissolving solvent is recovered from the first and second flash zones. This results in an enhanced recovery of the first dissolving solvent for recycle for utilization in the initial solubilization of the coal.
摘要:
This invention relates to a process for producing coal derived, hydrogen-rich donor fractions from fractions of coal liquefaction products for use in the hydroconversion of coal. Coal liquefaction products are subjected to a critical solvent deashing process to produce various deashed coal fractions which can only be obtained by practicing that process. Thereafter, the various deashed coal fractions are subjected to hydrogen addition to produce heretofore unavailable hydrogen-rich donor fractions. These hydrogen-rich donor fractions may be recycled to supplant a portion of the liquefaction process solvent or blended with other fractions produced by the deashing process to provide improved fuel products.
摘要:
An improved system for deashing coal liquefaction products wherein a feed mixture (including a deashing solvent, soluble coal products and insoluble coal products) is separated in a first separation zone into a first light fraction and a first heavy fraction (including insoluble coal products and some deashing solvent). The first heavy fraction is withdrawn from the first separation zone and the pressure level of the first heavy fraction is reduced at least 100 psig for vaporizing the deashing solvent and for yielding a composition substantially comprising coal products. The composition is essentially a powdery, solid material and is capable of being transferred via a slurry or mechanical means.
摘要:
A system comprising multiple devices that are operable when servicing a device-under service is described. A data acquisition (DAQ) device and a vehicle scanner device of the system are operable to acquire data from the device-under-service and to transmit the acquired data to a display device of the system. The DAQ device can operate in a local-control mode in which selection of DAQ mode for the DAQ device is carried out at the DAQ device. The DAQ device can operate in a remote-control mode in which selection of a DAQ mode for the DAQ device is carried out at the display device. The multiple devices may communicate with each other via one or more wireless network via one or more air interface protocols. Each device of the system may operate as a stand-alone device or in combination with multiple devices of the system.
摘要:
A system comprising multiple devices that are operable when servicing a device-under service is described. A data acquisition (DAQ) device and a scanner device of the system are operable to acquire data from the device-under-service and to transmit the acquired data to a display device of the system. The DAQ device can operate in a local-control mode in which selection of DAQ mode for the DAQ device is carried out at the DAQ device. The DAQ device can operate in a remote-control mode in which selection of a DAQ mode for the DAQ device is carried out at the display device. The multiple devices may communicate with each other via one or more wireless network via one or more air interface protocols. Each device of the system may operate as a stand-alone device or in combination with multiple devices of the system.
摘要:
A method for correlating data from a data source representing a single data file to a data target containing a plurality of data files is provided. The method includes normalizing the data from the data source, such as by removing white space and replacing data strings. One or more data strings are selected for use as preliminary selection criteria. The preliminary selection criteria are then used to search for one or more matches in the normalized data from the data source. If no match is found, one or more data strings are selected for use as secondary selection criteria. A correlation score is calculated if at least one match is found using the preliminary selection criteria.
摘要:
Disclosed herein are pharmaceutical compositions comprising an inverse serotonin receptor agonist or a serotonin receptor antagonist and an anti-psychotic agent. Disclosed herein are also methods of treating psychotic disorders using the disclosed pharmaceutical compositions.
摘要:
A bypass channel (C) for fish extends along line one side of a river, for the full length of a section of the river in which reservoirs (22, 24, 26, 28) have been created by dams (14, 16, 18, 20). The channel (C) follows the grade of the natural river. It includes an inner wall (34) that varies in height so that it is always higher than the water level in any of the reservoirs. It also includes an outer wall (36) and a bottom wall (38) which are formed on the natural terrain that borders the river and reservoirs. In at least its taller regions, the inner wall (38) may be braced by a diagonal member or a system of member (40). Water flow into the channel (C) maybe regulated by horizontal and/or vertical gates (50, 52) or some other structure for changing the cross sectional area of the channel (C).