Thermal dissolution

Thermal dissolution is a method of liquefaction of solid fossil fuels. It is a hydrogen-donor solvent refining process. It may be used for the shale oil extraction and coal liquefaction.

{{Cite journal

| last= Gorlov |first= E.G.

| title = Thermal Dissolution Of Solid Fossil Fuels

| journal= Solid Fuel Chemistry

| publisher= Allerton Press, Inc.

| page= 290

| issue=5

| volume = 41

| date=October 2007

| issn=1934-8029

| doi = 10.3103/S0361521907050047|bibcode= 2007SFuCh..41..290G

|s2cid= 73546863

}}

Other liquids extraction processes from solid fuels are pyrolysis and hydrogenation.

{{Cite conference

|last = Luik

|first = Hans

|title = Alternative technologies for oil shale liquefaction and upgrading

|conference = International Oil Shale Symposium

|publisher = Tallinn University of Technology

|location = Tallinn, Estonia

|date = 2009-06-08

|url = http://www.oilshalesymposium.com/fileadmin/user_upload/documents/LUIK_2.pdf

|accessdate = 2009-06-09

|url-status = dead

|archiveurl = https://web.archive.org/web/20120224021639/http://www.oilshalesymposium.com/fileadmin/user_upload/documents/LUIK_2.pdf

|archivedate = 2012-02-24

}}

Compared to hydrogenation, the process of thermal dissolution has milder conditions, simpler process, and no consumption of catalyst.

{{Cite journal

| first1 = Hai-Yun | last1 = Lu

| first2 = Xian-Yong | last2 = Wei

| first3 = Rui | last3 = Yu

| first4 = Yao-Li | last4 = Peng

| first5 = Xing-Zhen | last5 = Qi

| first6 = Li-Man | last6 = Qie

| first7 = Qing | last7 = Wei

| first8 = Jie | last8 = Lv

| first9 = Zhi-Min | last9 = Zong

| first10 = Wei | last10= Zhao

| first11 = Yun-Peng | last11 = Zhao

| first12 = Zhong-Hai | last12 = Ni

| first13 = Lin | last13 = Wu

| title = Sequential Thermal Dissolution of Huolinguole Lignite in Methanol and Ethanol

| journal= Energy & Fuels

| publisher= American Chemical Society

| page= 2741

| issue= 6

| volume = 25

| date= 2011-05-20

| doi = 10.1021/ef101734f}}