System and method for low-cost methane upgrading to added-valuable products
AssigneeQatar Foundation for Education, Science and Community Development
InventorsAhmed Abotaleb, Giovanni Scabbia, Alessandro Sinopoli
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Abstract
The present disclosure is generally directed to a new and innovative system, process and method that utilize a new “non-oxygen type of oxidizers” process for methane (CH4) upgrading to value-added products such as olefins and aromatics (i.e., benzene, toluene and xylene (BTX)) etc. and further removing toxic impurities such as sulphur-containing compounds (i.e. H2S) by using the sulphur as a source of radical.
Claims20
A process for converting methane (CH4) to higher hydrocarbons including olefins and aromatic hydrocarbons, the process comprising:
- (i) supplying a first feedstock comprising methane, hydrogen sulfide (H2S), and a first catalytic material to a first reactor;
- (ii) operating the first reactor under a first reaction condition effective to convert at least a portion of the methane and hydrogen sulfide to carbon disulfide (CS2) and hydrogen (H2);
- (iii) supplying a second feedstock comprising the resulted carbon disulfide (CS2) and hydrogen (H2) from step (ii) and a second catalytic material to a second reactor;
- (iv) operating the second reactor under a second reaction condition effective to convert at least a portion of the carbon disulfide (CS2) and hydrogen (H2) to methanethiol (CH3SH) and hydrogen sulfide (H2S);
- (v) feeding a third feedstock comprising the resulted methanethiol (CH3SH) and hydrogen (H2) from step (iv) and a third catalytic material to a third reactor;
- and
- (vi) operating the third reactor under a third reaction condition effective to convert at least a portion of the methanethiol (CH3SH) to produce the higher hydrocarbons.
A system for converting methane to higher hydrocarbons including olefins and aromatic hydrocarbons, the system comprising:
- a reaction unit comprising:
- (i) a first reactor configured to receive a first feedstock, the first reactor comprising a first catalytic material formulated for converting at least a portion of the methane and hydrogen sulfide to carbon disulfide (CS2) and hydrogen (H2) to form a first resulted mixture comprising the carbon disulfide (CS2) and the hydrogen (H2);
- (ii) a second reactor fluidly connected to the first reactor to receive the first resulted mixture, the second reactor comprising a second catalytic material formulated for converting at least a portion of the carbon disulfide (CS2) and hydrogen (H2) to methanethiol (CH3SH) and hydrogen sulfide (H2S) to form a second resulted mixture comprising the methanethiol (CH3SH) and the hydrogen sulfide (H2S);
- and
- (iii) a third reactor fluidly connected to the second reactor to receive the second resulted mixture, the third reactor comprising a third catalytic material formulated for converting at least a portion of the methanethiol (CH3SH) to the higher hydrocarbons to produce a third resulted mixture comprising the higher hydrocarbons.
Dependencies are inferred from the claim text.