Numerical Simulation and Assessment of a Two‐Stage Gasifier Modified from an Opposed Multi‐Burner Gasifier |
| |
| Authors: | Weilong Jin Yifei Wang Longchu Zhu Chaoqi Wu Jianliang Xu |
| |
| Affiliation: | East China University of Science and Technology (ECUST), Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, Shanghai, China |
| |
| Abstract: | An opposed multi‐burner (OMB) entrained‐flow gasifier with coal water slurry feeding is developed by the East China University of Science and Technology. A 3D model is employed to numerically simulate the gas flow field, motion of char particles, and distributions of temperature and gaseous components in an OMB gasifier and in a conceptual two‐stage gasifier modified from the OMB gasifier (TS‐OMB gasifier). Results show that the TS‐OMB gasifier produces higher concentration and productivity of the effective gases (CO+H2) with a slightly higher carbon conversion than the OMB gasifier. The reasons for the differences between these two types of gasifier are discussed by means of numerical simulation. This information is valuable for guiding the design of an advanced OMB gasifier. |
| |
| Keywords: | Coal gasification Entrained‐flow gasifier Numerical simulation Opposed multi‐burner gasifier |
|
