Systems and methods for producing substitute natural gas

摘要

Systems and methods for processing a hydrocarbon are provided. The method can include gasifying a feedstock within a gasifier to provide a raw syngas. The raw syngas can be processed within a purification system to provide a treated syngas. A first portion of the treated syngas can be converted into a first effluent in a first methanator. The first effluent can be mixed with a second portion of the treated syngas to provide a first mixed effluent. The first mixed effluent can be converted into a second effluent in a second methanator. The second effluent can be mixed with a third portion of the treated syngas to provide a second mixed effluent. The second mixed effluent can be converted into a third effluent in a third methanator.

主权项

1. A method for processing a hydrocarbon, comprising:
gasifying a feedstock within a gasifier to provide a raw syngas; processing the raw syngas within a purification system to provide a treated syngas; converting a first portion of the treated syngas into a first effluent in a first methanator; mixing the first effluent with a second portion of the treated syngas to provide a first mixed effluent; converting the first mixed effluent into a second effluent in a second methanator; mixing the second effluent with a third portion of the treated syngas to provide a second mixed effluent; converting the second mixed effluent into a third effluent in a third methanator; converting at least a portion of the third effluent into a fourth effluent in a fourth methanator; and wherein the first methanator comprises a first catalyst, the second methanator comprises a second catalyst, the third methanator comprises a third catalyst, and the fourth methanator comprises a fourth catalyst, and wherein the fourth catalyst is a different type of catalyst than the first, second, and third catalysts.