Process for depolymerizing coal to co-produce pitc

专利名称：Process for depolymerizing coal to co-produce pitch and naphthalene

发明人：Elliot B. Kennel,Gilbert A. Chalifoux申请号：US14966262申请日：20151211公开号：US09534176B2公开日：20170103

专利附图：

摘要：A method of depolymerizing coal includes preparing a high temperaturedepolymerizing medium consisting of heavy hydrocarbon oils and mixing it with coal toform a mixture, performing an optional first distillation at a temperature below 250° C. to

recover naphthalene, heating the mixture to a temperature between 350° C. and 450° C.to create a digested coal, centrifuging the digested coal to remove ash and obtain acentrate, and distillation of the centrate into separate fractions. The high temperaturedepolymerizing medium may be a heavy hydrocarbon with a hydrogen to carbon (H/C)ratio higher than 7.0% and may include liquids chosen from the group consisting of: coaltar distillate, decant oil, anthracene oil, and heavy aromatic oils. The high temperaturedepolymerizing medium may be blended with an oil, preferably with H/C ratio higherthan 10.0%, such as soybean oil, other biomass derived oil, lignin, petroleum oil, pyrolysisoil such that the overall hydrogen-to-carbon mass ratio in a digestion reactor is over7.0% for the mixture of depolymerizing medium and coal. The depolymerized coal is anaromatic liquid that can itself be, either wholly or in part, a depolymerizing medium sothat the process can be repeated.

申请人：Quantex Research Corporation

地址：Kitchener CA

国籍：CA

代理机构：The Webb Law Firm

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