System and implementation method for producing methanol and rock wool from coals with low calorific values

• Main Authors: QIN LIHUA, DONG FANG, MO TONG, QU WEIDONG, DONG XIAOBIN, QIN YUWEI, YANG ZONGJIA, YIN SHI
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CARBURETTING AIR OR OTHER GASES; CHEMISTRY; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; GLASS; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; NATURAL GAS; ORGANIC CHEMISTRY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention relates to a system and implementation method for producing methanol and rock wool from coals with low calorific values. The system comprises an air separation device for separation of oxygen and nitrogen in air, a gasification and melting reduction furnace for coal gas production, a flue gas treatment system for flue gas pretreatment, a methanol synthesis system, and a rock wool production system. The implementation method for producing the methanol and the rock wool from the coals with the low calorific values is characterized in that the methanol and the rock wool are producedfrom the coals with the low calorific values through four steps, i.e., coal gas production, flue gas pretreatment, methanol production, and rock wool production. The system and implementation methodprovided by the invention have the advantages that cokes (formed cokes), limestone, coal gangues, middling coals, coal slurry and the other coals with the low calorific values are used as raw materials, so that the production