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Akron, OH, United States

Yan X.,Texas A&M University-Commerce | Yan X.,Taiyuan University of Technology | Wheeler J.,Texas A&M University-Commerce | Jang B.,Texas A&M University-Commerce | And 2 more authors.
Applied Catalysis A: General | Year: 2014

This study investigates the first Au catalysts prepared by photocatalysis process for selective hydrogenation reaction. The photocatalysis process is more straightforward than the encapsulation methods to prepare Au catalysts with small particles. Both 1% and 5%Au/C-TiO2 catalysts were tested for selective hydrogenation of acetylene in ethylene with H2/C2H2ratios of 2/1, 5/1 and 10/1. With H2/C2H2 ratio of 5/1, both 1% and 5%Au/C-TiO2 catalysts show maximum yields of acetylene conversion to ethylene. Especially, the yield of 1%Au/C-TiO2, after reduction at 250°C, reaches above 80% at temperatures from 200°C to 275°C. Most significantly 1%Au/C-TiO2, after reduction at 250°C with H2/C2H2 ratio of 5/1, is not only active and selective but also stable for selective hydrogenation of acetylene in ethylene. It maintains ∼100% acetylene conversion with ∼80% selectivity to ethylene after 12 h at 225°C. Source


A chemically treated carbon black product is provided, which includes a pellet having an agglomerated mass of carbon black aggregates densified in a generally spheroidal form. The carbon black aggregates have polysulfide adsorbed on surfaces thereof. The polysulfide is thereby distributed throughout the pellet. Elastomeric compositions containing the chemically treated carbon black are also provided, and exhibit a reduction in hysteresis and equivalent or better abrasion resistance. A method for manufacturing the treated carbon black product is also disclosed.


Patent
Sid Richardson Carbon & Energy Co | Date: 2015-06-17

A nanospike hybrid carbon black product includes a plurality of carbon black aggregates. Each of the carbon black aggregates has a surface with a plurality of carbon nanospike formed thereon. The carbon nanospikes may each have a length between about 5 nm and 100 nm, and a width between about 5 nm and about 50 nm. A method for manufacturing the nanospike hybrid carbon black product includes the steps of injecting a primary carbon feedstock into a carbon black reactor, and combusting the carbon feedstock under a predetermined high temperature in the carbon black reactor to form carbon black aggregates. A catalyst is then deposited on surfaces of the carbon black aggregates. A secondary carbon feedstock is injected into the carbon black reactor, and reacted with the catalyst to grow carbon nanospikes on the surfaces of the carbon black aggregates.


A chemically treated carbon black product is provided, which includes a pellet having an agglomerated mass of carbon black aggregates densified in a generally spheroidal form. The carbon black aggregates have polysulfide adsorbed on surfaces thereof. The polysulfide is thereby distributed throughout the pellet. Elastomeric compositions containing the chemically treated carbon black are also provided, and exhibit a reduction in hysteresis and equivalent or better abrasion resistance. A method for manufacturing the treated carbon black product is also disclosed.


Trademark
Sid Richardson Carbon & Energy Co | Date: 2012-11-01

Carbon for industrial purposes.

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