Company Filing History:
3 out of 4 
2 out of 333 
1 out of 1 Years Active: 1986-1992
Title: Innovations by Gonzalo Sepulveda
Introduction
Gonzalo Sepulveda is an accomplished inventor based in Caracas, Venezuela. He has made significant contributions to the field of materials science and chemical engineering, holding three patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of his latest patents is a carbon dioxide adsorbent and method for producing the adsorbent. This reversible adsorbent for carbon dioxide can be utilized as a decontaminant in closed environments. It consists of a novel material formed by a surface-modified silica gel with active sites for the chemisorption of CO.sub.2 at room temperature, combined with clay in a preferred weight ratio of 80/20. The carbon dioxide is liberated under heating at 110°C. The surface area of the material ranges between about 120 and 240 m²/g, with a total pore volume between about 0.4 and 0.8 cc/g, where approximately 80% of the total pore volume contains pores with diameters between about 60 Å and 180 Å. The material can adsorb between about 7.5 and 11.7 cc of dry CO.sub.2 per gram and can be regenerated between about 70°C and 150°C without losing any adsorptive capacity. Dry carbon dioxide is chemisorbed as a surface ammonium carbamate, which becomes a surface bicarbonate in the presence of water.
Another significant patent involves a process for the demetallization and hydroconversion of heavy crudes. This invention presents a natural active stable catalyst for use in hydrodemetallization (HDM) and hydroconversion (HC) of heavy crudes and residues. The catalyst is free of hydrogenating metals from Groups VIB and VIII of the Periodic Table and primarily comprises iron, silica, and alumina derived from natural clay. The catalyst possesses a surface area of between 20 to 100 m²/g and a total pore volume of between 0.20 to 0.90 cc/g, where 50 to 100% of the total pore volume contains pores with diameters greater than 400 Å. The catalyst has a ratio I(Fe)/I(Si+Al) of between 0.2 to 0.9 as determined by XPS.
Career Highlights
Gonzalo has worked with notable institutions such as Universidad Central
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