Method for preparing synthesis gas by coupled processing of coal and heavy oil

• Main Authors: SHEN HAIPING, WU XUEFENG, ZHANG ZHANZHU, ZHU BINGTIAN, WANG YAMIN, HOU SHUANDI, CAO YIHUA
• Format: Patent
• Language: Chinese; English
• Published: 16.05.2012
• Subjects: CARBURETTING AIR OR OTHER GASES; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention relates to a method for preparing synthesis gas by coupled processing of coal and heavy oil. The method comprises that: (1) in a cracking device, heavy oil and coal fines contact high temperature coke fines from a burner to carry out a reaction to generate cracking oil gas, semicoke, coke and other solid products, after a gas-solid separation treatment is performed, the separated oil gas enters the subsequent separation system, and the separated solid products enter a gasifier; (2) the solid products generated in the cracking device react with a gasification medium in the gasifier to generate synthesis gas and coke fines, and a gas-solid separation treatment is performed to obtain the coke fines and the synthesis gas product; (3) in the burner, the coke fines from the gasifier and oxygen-containing gas are subjected to a burning reaction, the generated heat is provided for increasing the temperature of the burner to obtain the high temperature coke fines and the flue gas, after a gas-solid separ