DIRECT COAL LIQUEFACTION PROCESS

摘要

A direct coal liquefaction method and apparatus in which the feed coal is mixed with a recycled 600° F.+ non-donor stream in which the ratio of coal to said stream is at least 1.5:1 on a moisture free basis to form an input slurry to a DCL reactor. Hydrogen containing treat gas is supplied to the reactor. 1000° F.− bottoms from the reactor are recycled as part of the 600° F.+ non-donor stream. 1000° F.+ bottoms from the reactor are gasified in a PDX unit to provide hydrogen for the DCL reaction. The ratio of recycled bottoms to feed coal is between 1:0.5 and 1:1.5.

主权项

1) A method for producing liquids from feed coal, comprising the steps of:
a) mixing a feed coal having an greater than 12% inertinite content with a non-donor stream that includes a recycled 600° F.+ fraction of the product from a direct coal liquefaction (DCL) slurry reactor to form a feed coal slurry, the ratio of non-donor stream to feed coal being greater than 1.6:1 on a moisture free basis; b) supplying said feed coal slurry to said DCL slurry reactor; c) adding a molybdenum or iron containing microcatalyst to the input of the DCL reactor; and d) supplying H2 containing treat gas to the DCL reactor.