A heterogeneous catalyst composition including a metal and boron catalyst with boron dispersed in a molten matrix, where the molten matrix includes a eutectic mixture of alkali metal or alkaline earth metal salts or hydroxides. A process for preparing a heterogeneous catalyst composition, including combining a mixture of alkali metal or alkaline earth metal salts or hydroxides to form a matrix including a eutectic mixture, adding, to the matrix, a boron precursor and at least one metal catalyst precursor to form a catalyst precursor mixture, and heating the catalyst precursor mixture to a temperature of from 390 C. to 750 C. to form the heterogeneous catalyst composition. A process for catalytic oxidative dehydrogenation of hydrocarbons whereby a hydrocarbon-containing feedstock contacts the heterogeneous catalyst composition to generate olefinic compounds.

The process provided herein is concerned with disposal of oxidized sulfur compounds formed by oxidative desulfurization. The process uses solid base catalyst in the presence of a caustic solution or solid base catalyst pretreated with a base and eliminates the need to separate the sulfones from the hydrocarbon streams and recover the hydrocarbons.

The present disclosure generally relates to a silver-based epoxidation catalyst. In certain embodiments, a method is provided for modulating the reactivity of the silver-based epoxidation catalyst, comprising the catalyst being post-treated with at least two different salt solutions. In some embodiments, the treatment results in the deposition of one or more metals onto the surface of the catalyst. In further embodiments, method is also provided of using the silver catalyst to generate an epoxide from an olefin.

A method of making LDO-Co nanoparticles is described herein. A method of using LDO-Co nanoparticles, particularly in the treatment of wastewater, is described herein.

The present invention provides a process for the hydrogenation of the levulinic acid to -valerolactone in a single step with a single Pt supported on hydrotalcite catalyst. The process provides conversion of -valerolactone over Pt supported hydrotalcite catalyst at room temperature (25 C.). The process provides a levulinic acid conversion of 34-100% with 20-50 bar hydrogen pressure to give -valerolactone selectivity up to 99%.

The present invention discloses a catalyst for in-situ CO2 capture and coupling reduction with biomass oxidation, a preparation method therefor and an application thereof. The catalyst is applied to the coupling reaction of photocatalytic CO2 reduction and biomass oxidation. The preparation of the catalyst is to synthesize layered double hydroxides (LDHs) containing CO32 between layers by using coprecipitation method, hydrothermal method, sol-gel method and the like, wherein the chemical formula is [M1x2+Mx3+(OH)2]x+(An)x/n.Math.mH2O, which has a thickness of 20-30 nm and an average particle diameter of 60-90 nm. Then metal ion vacancy defects are produced on LDHs laminate by using a NaOH/KOH selective etching to obtain the corresponding catalyst. The catalyst is used in photocatalytic reaction, characterized in that CO32 is continuously consumed in the reaction process, and the catalyst can absorb CO2 in the air for recovery after the reaction, and can be repeatedly used to continuously consume CO2 in the air, thus realizing the direct capture and effective utilization of CO2.