US 11,807,816 B2
Process integration for cracking light paraffinic hydrocarbons
Khalid A. Al-Majnouni, Riyadh (SA); Nabil Al-Yassir, Riyadh (SA); Naif Aldalaan, Riyadh (SA); Ahmed Al-Zenaidi, Riyadh (SA); and Khalid Almusaiteer, Thuwal (SA)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 16/467,121
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL)
PCT Filed Dec. 13, 2017, PCT No. PCT/IB2017/057913
§ 371(c)(1), (2) Date Jun. 6, 2019,
PCT Pub. No. WO2018/116085, PCT Pub. Date Jun. 28, 2018.
Claims priority of provisional application 62/436,163, filed on Dec. 19, 2016.
Prior Publication US 2019/0316042 A1, Oct. 17, 2019
Int. Cl. C07C 4/06 (2006.01); C10G 11/18 (2006.01)
CPC C10G 11/182 (2013.01) [C07C 4/06 (2013.01); C07C 2529/08 (2013.01); C07C 2529/40 (2013.01); C10G 2300/1044 (2013.01); C10G 2300/4093 (2013.01); C10G 2300/708 (2013.01); C10G 2400/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of producing olefins, the method comprising:
preheating a hydrocarbon feed comprising C5 to C7 hydrocarbons to at least a temperature of 400° C. to form a preheated hydrocarbon feed;
mixing a catalyst with a gas comprising at least one member selected from the group consisting of methane and hydrogen to form a gas/catalyst mixture;
contacting the gas/catalyst mixture with the preheated hydrocarbon feed at reaction conditions sufficient to produce C2 to C4 olefins; and
mixing a hydrocarbon feedstock with a dry gas member selected from the group consisting of methane and hydrogen to dilute the hydrocarbon feedstock and form the hydrocarbon feed;
wherein the hydrocarbon feedstock is one member selected from the group consisting of light straight run naphtha and heavy straight run naphtha;
wherein the catalyst comprises a solid acid based zeolite catalyst selected from the group consisting of one or more medium pore zeolites, one or more large pore zeolites and combinations thereof;
wherein the zeolite catalyst is only modified by at least one member selected from the group consisting of desilication and steaming;
wherein the reaction conditions comprise a temperature in a range of 500 to 750° C. and pressure in a range of 0.5 to 5 bars;
wherein a weight ratio of dry gas/hydrocarbon feedstock in the hydrocarbon feed ranges from 20 to 100; and
wherein the catalyst is fresh.