Abstract: The invention provides methods for rapidly synthesizing heteroatom containing zeolites including Sn-Beta, Si-Beta, Ti-Beta, Zr-Beta and Fe-Beta. The methods for synthesizing heteroatom zeolites include using well-crystalline zeolite crystals as seeds and using a fluoride-free, caustic medium in a seeded dry-gel conversion method. The Beta zeolite catalysts made by the methods of the invention catalyze both isomerization and dehydration reactions.

Abstract: A dual-polarization omnidirectional antenna includes a reflecting base plate, a radiating oscillator, outputting coaxial cables, RF connectors, a metallic supporting pillar and a T-shaped probe. The radiating oscillator has an upper layer provided with a one-to-two feed dividing network and a lower layer provided with a round patch; the T-shaped probe is welded with the round patch. A mixing ring is arranged on the reflecting base plate; two RF connectors are respectively connected with a first port and a second port of the mixing ring; an inner conductor of a first outputting coaxial cable has a first end connected with the feed dividing network and a second end connected with a third port of the mixing ring; an inner conductor of another outputting coaxial cable has a first end connected with the T-shaped probe and a second end connected with a fourth port of the mixing ring.

Abstract: The invention relates to a method for producing a fluid hydrocarbon product, and more specifically, to a method for producing a fluid hydrocarbon product via catalytic pyrolysis. The reactants comprise hydrocarbonaceous materials (e.g., biomass). The catalyst comprises a zeolite catalyst treated with a silicone compound. The product comprises p-xylene.

Abstract: A dual-polarization omnidirectional antenna includes a reflecting base plate, a radiating oscillator, outputting coaxial cables, RF connectors, a metallic supporting pillar and a T-shaped probe. The radiating oscillator has an upper layer provided with a one-to-two feed dividing network and a lower layer provided with a round patch; the T-shaped probe is welded with the round patch. A mixing ring is arranged on the reflecting base plate; two RF connectors are respectively connected with a first port and a second port of the mixing ring; an inner conductor of a first outputting coaxial cable has a first end connected with the feed dividing network and a second end connected with a third port of the mixing ring; an inner conductor of another outputting coaxial cable has a first end connected with the T-shaped probe and a second end connected with a fourth port of the mixing ring.