Patent ID: 11939546
Assignee: EASTMAN CHEMICAL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  Y | IPC C

Claim 2:
3. A process for the production of syngas comprising:
a. charging an oxidant and a feedstock slurry composition to a gasification zone within a gasifier without pressurizing the feedstock stream in a lock hopper prior entry into the gasifier, said feedstock slurry composition comprising solids and liquids and having a viscosity in the range of 5357 cP to less than 30,000 cP, said solids comprising plastics and a solid fossil fuel, wherein (i) the plastics are present in an amount up to 25 wt. % based on the weight of the solids in the feedstock slurry and (ii) 90 wt. % of the plastics have a particle size in the largest dimension of not more than 2 mm, and said liquids comprising water;
b. gasifying the feedstock composition together with the oxidant in a gasification zone to produce a syngas composition; and
c. discharging at least a portion of the syngas composition from the gasifier, and producing an organic compound from said syngas composition, wherein at least one of the following conditions is present:
(i) gasification within the gasification zone is conducted at a temperature of at least 1000° C., or
(ii) the pressure within the gasification zone greater than 2.7 MPa, or
(iii) no steam is introduced to the gasifier that flows into the gasification zone, or
(iv) the tar yield is less than 4 wt. %, or
(v) the gasifier contains no membrane wall in the gasification zone, or
(vi) a combination of two or more of the above conditions.