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AssigneeLG Chem, Ltd.
InventorsJun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
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A catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5≦j≦120, 0≦k≦50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.
A hydrocarbon steam cracking catalyst comprising a composite catalyst including an oxide catalyst represented by CrZrjAkOx, wherein 5≦j≦120, 5≦k≦30, A is one or more transition metal selected from the group consisting of Ti, Mo, V, and Co and x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k,
A hydrocarbon steam cracking catalyst comprising a composite catalyst prepared by mixing an oxide catalyst powder represented by CrZrjAkOx, wherein 5≦j≦120, 5≦k≦30, A is one or more transition metal selected from the group consisting of Mo, V, and Co and x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k, and a carrier powder and sintering the same,
A hydrocarbon steam cracking catalyst comprising a composite catalyst prepared by impregnating an oxide catalyst represented by CrZrjAkOx, wherein 5≦j≦120, 5≦k≦30, A is one or more transition metal selected from the group consisting of Mo, V, and Co and x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k, on a carrier,
Dependencies are inferred from the claim text.