摘要:
This invention is directed to hydrodemetallization catalysts and hydrodemetallization processes employing a magnesium aluminosilicate clay. The magnesium aluminosilicate clay has a characteristic 29Si NMR spectrum. The magnesium aluminosilicate clay is the product of a series of specific reaction steps. Briefly, the magnesium aluminosilicate clay employed in the catalyst and process of the invention is made by combining a silicon component, an aluminum component, and a magnesium component, under aqueous conditions and at an acidic pH, to form a first reaction mixture and subsequently the pH of the first reaction mixture is adjusted to greater than about 7.5 to form a second reaction mixture. The second reaction mixture is allowed to react under conditions sufficient to form the magnesium aluminosilicate clay. The resulting magnesium aluminosilicate clay combines high surface area and activity for use in hydrodemetallization catalysts and processes.
摘要翻译:本发明涉及使用硅铝酸镁粘土的加氢脱金属催化剂和加氢脱金属化方法。 硅铝酸镁粘土具有特征29 Si NMR光谱。 铝硅酸镁粘土是一系列具体反应步骤的产物。 简而言之,本发明的催化剂和方法中所用的硅铝酸镁粘土是通过在含水条件下和酸性pH下混合硅组分,铝组分和镁组分来形成第一反应混合物,随后将 将第一反应混合物的pH调节至大于约7.5以形成第二反应混合物。 允许第二反应混合物在足以形成硅铝酸镁粘土的条件下反应。 所得到的硅铝酸镁粘土具有高表面积和活性,用于加氢脱金属催化剂和工艺。
摘要:
This invention is directed to hydrodemetallization catalysts and hydrodemetallization processes employing a magnesium aluminosilicate clay. The magnesium aluminosilicate clay has a characteristic 29Si NMR spectrum. The magnesium aluminosilicate clay is the product of a series of specific reaction steps. Briefly, the magnesium aluminosilicate clay employed in the catalyst and process of the invention is made by combining a silicon component, an aluminum component, and a magnesium component, under aqueous conditions and at an acidic pH, to form a first reaction mixture and subsequently the pH of the first reaction mixture is adjusted to greater than about 7.5 to form a second reaction mixture. The second reaction mixture is allowed to react under conditions sufficient to form the magnesium aluminosilicate clay. The resulting magnesium aluminosilicate clay combines high surface area and activity for use in hydrodemetallization catalysts and processes.
摘要翻译:本发明涉及使用硅铝酸镁粘土的加氢脱金属催化剂和加氢脱金属化方法。 硅铝酸镁粘土具有特征29 Si NMR光谱。 铝硅酸镁粘土是一系列具体反应步骤的产物。 简而言之,本发明的催化剂和方法中所用的硅铝酸镁粘土是通过在含水条件下和酸性pH下混合硅组分,铝组分和镁组分来形成第一反应混合物,随后将 将第一反应混合物的pH调节至大于约7.5以形成第二反应混合物。 允许第二反应混合物在足以形成硅铝酸镁粘土的条件下反应。 所得到的硅铝酸镁粘土具有高表面积和活性,用于加氢脱金属催化剂和工艺。
摘要:
A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour.
摘要:
A lever-type connector assembly reduces connection mating forces between connector halves. The assembly employs a first connector with cam follower projections, a base housing with guide channels and a latch member, a slide cam housing including cam grooves and projection guide tracks, and a cover housing pivoting on the base housing, the cover housing having a cover housing projection and release latch. The release latch is fully protected and concealed within the profile of the cover housing. As the cover housing rotates, the cover housing projection engages in projection guide track, thereby moving slide cam housing in a guide channel. As slide cam housing moves from an open to a closed position, it engages cam follower projections in cam grooves thereby drawing first connector into base housing to a connected position while the cover housing release latch engages base housing release latch aperture to provide a secure electrical connection.
摘要:
A lever-type electrical connector assembly reduces the connection mating forces required to mate female and male connectors. The connector assembly employs a first connector with cam follower projections, a base housing with guide channels, a slide cam housing including cam grooves and projection guide tracks, and a cover housing pivotally mounted on the base housing, the cover housing having a cover housing projection. As the cover housing is rotated from an open to a closed position, it engages the cover housing projection in the projection guide track. This engagement moves the slide cam housing in the guide channel. As the slide cam housing is moved from an open to a closed position, it engages the cam follower projections in the cam grooves thereby drawing the first connector into the base housing to a connected position.
摘要:
This invention is directed to hydrodemetallization catalysts and hydrodemetallization processes employing a magnesium aluminosilicate clay. The magnesium aluminosilicate clay has a characteristic 29Si NMR spectrum. The magnesium aluminosilicate clay is the product of a series of specific reaction steps. Briefly, the magnesium aluminosilicate clay employed in the catalyst and process of the invention is made by combining a silicon component, an aluminum component, and a magnesium component, under aqueous conditions and at an acidic pH, to form a first reaction mixture and subsequently the pH of the first reaction mixture is adjusted to greater than about 7.5 to form a second reaction mixture. The second reaction mixture is allowed to react under conditions sufficient to form the magnesium aluminosilicate clay. The resulting magnesium aluminosilicate clay combines high surface area and activity for use in hydrodemetallization catalysts and processes.
摘要翻译:本发明涉及使用硅铝酸镁粘土的加氢脱金属催化剂和加氢脱金属化方法。 硅铝酸镁粘土具有特征29 Si NMR光谱。 铝硅酸镁粘土是一系列具体反应步骤的产物。 简而言之,本发明的催化剂和方法中所用的硅铝酸镁粘土是通过在含水条件下和酸性pH下混合硅组分,铝组分和镁组分来形成第一反应混合物,随后将 将第一反应混合物的pH调节至大于约7.5以形成第二反应混合物。 允许第二反应混合物在足以形成硅铝酸镁粘土的条件下反应。 所得到的硅铝酸镁粘土具有高表面积和活性,用于加氢脱金属催化剂和工艺。
摘要:
This invention is directed to hydrodemetallization catalysts and hydrodemetallization processes employing a magnesium aluminosilicate clay. The magnesium aluminosilicate clay has a characteristic 29Si NMR spectrum. The magnesium aluminosilicate clay is the product of a series of specific reaction steps. Briefly, the magnesium aluminosilicate clay employed in the catalyst and process of the invention is made by combining a silicon component, an aluminum component, and a magnesium component, under aqueous conditions and at an acidic pH, to form a first reaction mixture and subsequently the pH of the first reaction mixture is adjusted to greater than about 7.5 to form a second reaction mixture. The second reaction mixture is allowed to react under conditions sufficient to form the magnesium aluminosilicate clay. The resulting magnesium aluminosilicate clay combines high surface area and activity for use in hydrodemetallization catalysts and processes.
摘要翻译:本发明涉及使用硅铝酸镁粘土的加氢脱金属催化剂和加氢脱金属化方法。 硅铝酸镁粘土具有特征29 Si NMR光谱。 铝硅酸镁粘土是一系列具体反应步骤的产物。 简而言之,本发明的催化剂和方法中所用的硅铝酸镁粘土是通过在含水条件下和酸性pH下混合硅组分,铝组分和镁组分来形成第一反应混合物,随后将 将第一反应混合物的pH调节至大于约7.5以形成第二反应混合物。 允许第二反应混合物在足以形成硅铝酸镁粘土的条件下反应。 所得到的硅铝酸镁粘土具有高表面积和活性,用于加氢脱金属催化剂和工艺。
摘要:
A lamp assembly for use with a vehicle's electrical system, the electrical system including a plurality of terminals each having a wire insulating portion and an end connector portion. A main elastomeric housing includes a socket for receiving a bulb. A front seal encircles an exterior surface of the socket and seals around a periphery of the socket. A first plurality of sealing ridges extend along an open facing side of the main housing, opposite the bulb socket, and within which are received the wire insulating portions of the terminals and the end connector portions of each terminal conmmunicating with the bulb socket upon the terminals being located within the main housing. A back cap matingly aligns over an open facing side of the main housing and includes an opposingly facing side with a second plurality of sealing ridges which align with the first plurality of sealing ridges and to sandwich therebetween the wire insulating portions of the terminals. An inlet seal is seatingly received between aligning recesses defined between the opposingly facing sides of the main housing and the back cap and is located proximate the first and second pluralities of sealing ridges. Wire receiving apertures extend through the seal and into which are inserted the wire insulating portions of the terminals. An ultrasonic welding operation secures the back cap to the main elastomeric housing in a seal-tight manner.
摘要:
A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour.
摘要:
The invention relates to a connector device that includes a plurality of terminals of varying heights that extend upwardly from the surface of a circuit board, and a connector housing that defines a receptacle portion. The connector housing includes an asymmetrical surface adapted to receive a plurality of terminals, and each of the plurality of terminals extends through a portion of the asymmetrical surface into the receptacle portion of the connector housing. The asymmetrical surface may include a plurality of substantially parallel vertical sections separated by at least one substantially horizontal section, may be angled relative to the surface of the circuit board, or may be curved relative to the surface of the circuit board. In addition, at least a portion of the asymmetrical surface of the connector housing may protrude over at least a portion of at least one of the terminals extending between the circuit board and the asymmetrical surface. In addition, the invention provides a connector device wherein the asymmetrical surface allows for the reduction of the packaging size of the terminals and a reduction of the size of the terminals.