Patent classifications
B01J27/22
METAL CARBIDES AND METHODS OF MAKING THE SAME
The present disclosure relates to a method for producing a metal carbide, where the method includes thermally treating a molecular precursor in an oxygen-free environment, such that the treating produces the metal carbide and the molecular precursor includes
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where M is the metal of the metal carbide, N* includes nitrogen or a nitrogen-containing functional group, and x is between zero and six, inclusively.
Conversion of Ammonium Nitrate Into Useful Products
The present invention is directed at the conversion of ammonium nitrate and related compounds upon reaction with methane into compounds such as ethyl acetate, ammonia, nitrogen and hydrogen. The reaction may proceed within a fluid-solid type reactor. The reaction may be facilitated in the presence of inert or catalytic solids.
SYNTHESIS STRATEGY OF SUPPORTED TRANSITION METAL CARBIDES FENTON-LIKE CATALYSTS AND APPLICATION THEREOF
The invention is mainly related to a synthesis method of supported two-dimensional transition metal carbides for Fenton-like catalysis, which includes the following steps: (1) preparing two-dimensional transition metal carbides powders; (2) dispersing the two-dimensional transition metal carbides powders into intercalants solution to perform an intercalation reaction, and then centrifuging, washing, and freeze-drying to obtain intercalated products; (3) dispersing a certain quality previously obtained intercalated powders into ultrapure water and heating for pre-reaction, and then adding hydrogen peroxide solution to the pre-reacted mixed solution under ice-water bath for secondary etching, resting, centrifuging and gently decanting a supernatant to obtain the final Fenton-like catalysts.
SYNTHESIS STRATEGY OF SUPPORTED TRANSITION METAL CARBIDES FENTON-LIKE CATALYSTS AND APPLICATION THEREOF
The invention is mainly related to a synthesis method of supported two-dimensional transition metal carbides for Fenton-like catalysis, which includes the following steps: (1) preparing two-dimensional transition metal carbides powders; (2) dispersing the two-dimensional transition metal carbides powders into intercalants solution to perform an intercalation reaction, and then centrifuging, washing, and freeze-drying to obtain intercalated products; (3) dispersing a certain quality previously obtained intercalated powders into ultrapure water and heating for pre-reaction, and then adding hydrogen peroxide solution to the pre-reacted mixed solution under ice-water bath for secondary etching, resting, centrifuging and gently decanting a supernatant to obtain the final Fenton-like catalysts.
PROCESSES FOR PRODUCING TRIFLUOROIODOMETHANE AND TRIFLUOROACETYL IODIDE
The present disclosure provides a process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and at least one trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, reacting the reactant stream in the presence of a first catalyst at a first reaction temperature from about 25° C. to about 400° C. to produce an intermediate product stream comprising trifluoroacetyl iodide, and reacting the intermediate product stream in the presence of a second catalyst at a second reaction temperature from about 200° C. to about 600° C. to produce a final product stream comprising the trifluoroiodomethane.
DISSIMILAR METAL-SUPPORTED CATALYST FOR THE PRODUCTION OF AROMATICS BY METHANE DEHYDROAROMATIZATION AND METHOD FOR PRODUCING AROMATICS USING THE SAME
Disclosed is a dissimilar metal-supported catalyst for the production of aromatics by methane dehydroaromatization. In the dissimilar metal-supported catalyst, a noble metal such as gold (Au), silver (Ag), platinum (Pt), and/or rhodium (Rh) is introduced into a catalyst supported with iron (Fe) on a zeolite support to promote the dehydrogenation of methane and the formation of iron carbide (Fe.sub.3C) as an active species for dehydroaromatization, achieving a greatly improved yield of aromatics. Also disclosed is a method for producing aromatics using the dissimilar metal-supported catalyst.
METHODS FOR PRODUCTION OF CARBON AND HYDROGEN FROM NATURAL GAS AND OTHER HYDROCARBONS
A method for producing elemental carbon and hydrogen gas directly from a hydrocarbon (for example, natural gas or methane) using a chemical reaction or series of reactions. In an aspect, other materials involved such as, for example, elemental magnesium, remain unchanged and function as a catalyst.
METHODS FOR PRODUCTION OF CARBON AND HYDROGEN FROM NATURAL GAS AND OTHER HYDROCARBONS
A method for producing elemental carbon and hydrogen gas directly from a hydrocarbon (for example, natural gas or methane) using a chemical reaction or series of reactions. In an aspect, other materials involved such as, for example, elemental magnesium, remain unchanged and function as a catalyst.
A PROCESS FOR THE DEHYDROGENATION OF ALKANES TO ALKENES AND IRON-BASED CATALYSTS FOR USE IN THE PROCESS
In a process for the catalytic dehydrogenation of lower alkanes to the corresponding alkenes, a regenerable catalyst comprising iron carbide supported on a carrier is used. A small amount (below 100 ppm) of a sulfur compound, such as H.sub.2S, is added during the process.
A PROCESS FOR THE DEHYDROGENATION OF ALKANES TO ALKENES AND IRON-BASED CATALYSTS FOR USE IN THE PROCESS
In a process for the catalytic dehydrogenation of lower alkanes to the corresponding alkenes, a regenerable catalyst comprising iron carbide supported on a carrier is used. A small amount (below 100 ppm) of a sulfur compound, such as H.sub.2S, is added during the process.