摘要:
A Ccomposition comprising one or more metal hydroxy salts and a matrix, binder or carrier material, wherein the metal hydroxy salt is a compound comprising (a) as metal either (i) one or more divalent metals, at least one of them being selected from the group consisting of Ni, Co, Ca, Zn, Mg, Fe, and Mn, or (ii) one or more trivalent metal(s), (b) framework hydroxide, and (c) a replaceable anion. This composition has various catalytic applications.
摘要:
A monitoring system enables in-situ monitoring of a solution enclosed within a high-pressure, closed loop environment. The monitoring system includes a calcium fluoride disk that is substantially transparent to infrared light. A hole is configured through the disk and a solution passes through the hole. Solution passing through the hole is analyzed by directing infrared light through the disk and the solution currently moving through the hole in the disk. The light exiting the disk is collected and analyzed to determine the composition of the solution through which the light passed.
摘要:
Novel compositions of matter comprising a cationic layered material and a second compound. The second compound has a reflection in its XRD pattern at 18.5 degrees two-theta, and s second reflection at 29 degrees two-theta. The composition of matter may be used in hydrocarbon conversion, purification, and synthesis processes, such as fluid catalytic cracking and hydroprocessing. The materials are especially suitable for the reduction of SOx and NOx emissions and the reduction of the sulfur and nitrogen content in fuels like gasoline and diesel.
摘要:
Apparatus for air mixing to prevent acid stratification in a battery having a liquid electrolyte is disclosed. A source of pressurized gas is connected to a gas conduit mounted on the battery. Downtubes within each cell of the battery are in fluid communication with the gas conduit. The tubes have outlets positioned near the bottom of each cell and one-way valves which allow gas to flow into the cells but prevent liquid electrolyte from flowing out of the cell through the downtube. The invention also includes a method of mixing a liquid electrolyte including using a one-way valve to allow a mixing gas to flow into a cell but prevent liquid electrolyte from escaping from the cell.
摘要:
A diesel fuel filter has a filter element which incorporates or is constituted by a heater made of an electrically conductive fabric which heats at least the inlet side surface of the filter element. A filter element formed entirely from the electrically conductive fabric can be used to protect a lift pump 12 while a filter element made of layers of fine mesh filter material and an electrically conductive material of coarser mesh is better suited for the primary fuel filter 16 located upstream of the fuel injection pump 18.
摘要:
The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. Said QCBs according to the invention may be prepared in several ways. In general, a quasi-crystalline boehmite precursor and an additive are converted to a quasi-crystalline boehmite containing the additive in a homogeneously dispersed state.
摘要:
Cationic layered materials, a process for their preparation and their use in hydrocarbon conversion, purification, and synthesis processes, such as fluid catalytic cracking. Cationic layered materials are especially suitable for the reduction of SOx and NOx emissions and the reduction of the sulfur and nitrogen content in fuels like gasoline and diesel. The new preparation process avoids the use of metal salts and does not require the formation of anionic clay as an intermediate.
摘要:
The present invention is directed to a process for the preparation of crystalline anionic clay-containing bodies from sources comprising a trivalent metal source and a divalent metal source comprising the steps of: a) preparing a precursor mixture containing a liquid, a divalent metal source and/or a trivalent metal source, at least one of them being insoluble in the liquid; b) shaping the precursor mixture to obtain shaped bodies; c) optionally thermally treating the shaped bodies; and d) aging the shaped bodies to obtain crystalline anionic clay-containing bodies; with the proviso that if no divalent or trivalent metal source is present in the precursor mixture of step a), such source is added to the shaped bodies after shaping step b) and before aging step d); and with the further proviso that the combined use of an aluminium source as the trivalent metal source and a magnesium source as the divalent metal source is excluded. The quintessence of the present invention is that the major part of the final amount of anionic clay is formed after shaping, i.e., in situ in the shaped body. This results in attrition resistant bodies, without the need to add a binder material.
摘要:
A stratified non-woven cleaning fabric with one or more layers of fibrous components in conjunction with microfibers. The fabric comprises at least one layer consisting of a combination of deep groove microfibers with one or more other components such as cotton fibers, rayon fibers, polyester fibers, acrylic fibers, low melt binding material or resins, or absorbent gelling material. One or more additional layers can be added to the fabric, these additional layers potentially consisting of one or more components, including deep groove microfibers, cotton fibers, rayon fibers, polyester fibers, acrylic fibers, low melt binding material or resins, or absorbent gelling material. A method of constructing the invention also is disclosed.
摘要:
A method and apparatus is disclosed to overcome the effects of intersymbol interference during data transmission. Overcoming the effects of intersymbol interference makes possible higher data transmission rates for a given error rate. In one embodiment a receiver-transmitter pair is configured with a precode filter at the transmit side and a feed forward filter and a feedback filter at the receive side. Filter coefficients are calculated to reduce the undesirable effects of the channel, such as intersymbol interference. In one embodiment a training process occurs with the feedforward filter and a feedback filter, such that the first N coefficients of the feedback filter are set to zero. Thereafter, the coefficients of the feedforward filter are subject to spectral factorization and separated into minimum phase roots and maximum phase roots. The minimum phase roots comprise the precode filter coefficients and the maximum phase roots are established as feedforward filter coefficients.