Preparation method of novel oxygen carrier for preparing synthesis gas through chemical chain gasification

The invention belongs to the technical field of energy and chemical industry, and discloses a preparation method of a novel oxygen carrier for preparing synthesis gas by chemical chain gasification, which comprises the following steps: firstly preparing a ZnO-BaFe2O4 oxygen carrier by using a sol-gel method, then mixing coal semicoke and the BaFe2O4 oxygen carrier, filling into a fixed bed reactor, and carrying out chemical chain gasification to prepare the synthesis gas. According to the invention, the problems of low synthesis gas selectivity, especially low CO selectivity, caused by low carbon conversion rate when the Fe-based oxygen carrier is used for chemical looping gasification are solved. And meanwhile, ZnO is adopted to modify the BaFe2O4 oxygen carrier, so that the gasification performance is improved, and the high application value is achieved. The CO-rich synthesis gas prepared by the method has a wide application prospect when being used for preparing fuels or deeply processing chemicals. 本发明属于能