MOGD Mobil Olefin to Gasoline

MOGD [Mobil olefine to gasoline and distillate] A process for converting C2- to C10-olefins to high-octane gasoline and other hydrocarbons. Developed by Mobil Corporation and first used at its refinery at Paulsboro, NJ, in 1982. 

The use of zeolite-base catalysts have only emerged relatively recently. Mobil olefin to gasoline/disHllate (MOGD) developed by Mobil and conversion of olefin to disHllate (COD) of PetroSA use ZSM-5 zeolite to convert olefins to gasoHne and... 

The 100 BPD MTG project was extended recently to demonstrate a related fluid bed process for selective conversion of methanol to light olefins (MTO). The products of the MTO reaction make an excellent feed to the commercially available Mobil Olefins to Gasoline and Distillate process (MOGD) which selectively converts olefins to premium transportation fuels ( 1). A schematic of the combined processes is shown in Figure 1. Total liquid fuels production is typically greater than 90 wt% of hydrocarbon in the feed. Distillate/gasoline product ratios from the plant can be adjusted over a wide range to meet seasonal demands. 

Fig. 9. Methanol-to-olefins (MTO) and Mobil olefins-to-gasoline (MOGD) and distillate process schematic.

So what we have here is a chemical factory, to be brought on stream as the need arises. And we can go a step further and convert these olefins to an entire spectrum of products, through yet another ZSM-5 process Mobil olefins-to-gasoline + distillate, or MOGD (Refs. 20, 21). 

Gasoline and distillate fuels can be produced from methanol by combining two Mobil processes Methanol to olefins (MTO) and Mobil olefins to gasoline and distillate (MOGD). Both processes use the medium pore zeolite ZSM-5 catalyst. The combined process offers gasoline and distillate in various proportions, as well as light olefinic byproducts if needed. Liquid fuel yields of up to 95 weight percent of hydrocarbons can be obtained. 

The MTG process can be combined with MTO technology as realized in the so-called MOGD process (Mobil Olefin to Gasoline/Distillate). Employing this process, olefins are synthesized in the first step followed by olefin oligomerization to gasoline or diesel using a ZSM-5 catalyst. Hence, this route also affords, unlike the MTG process, the production of synthetic diesel or jet fuel. ... 

It is likely that future commercialization of Methanol-to-Olefins (MTO) will take place in a fluid-bed reactor for many of the same reasons which encouraged fluid-bed MTG development, including better temperature control and constant product composition. The olefins produced by this process can be readily converted to gasoline, distillate and/or aviation fuels by commercially available technologies such as Mobil s MOGD process. 

A potential application of MTO olefins that has received considerable attention is their conversion to distillates and/or gasoline via the Mobil MOGD process [6365]. Typical MOGD process yields with C3C6 olefin feed are presented in Table 8 [52]. With the MOGD process, the flexibility of MTG/MTO technolo may be significantly enhanced, as seen in Figure 25 [52]. 

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