Two-stage coal liquefaction process

Skinner, Ronald W; Tao, John C; Znaimer, Samuel

Title: Two-stage coal liquefaction process

Full Record
Other Related Research

Abstract

An improved SRC-I two-stage coal liquefaction process which improves the product slate is provided. Substantially all of the net yield of 650.degree.-850.degree. F. heavy distillate from the LC-Finer is combined with the SRC process solvent, substantially all of the net 400.degree.-650.degree. F. middle distillate from the SRC section is combined with the hydrocracker solvent in the LC-Finer, and the initial boiling point of the SRC process solvent is increased sufficiently high to produce a net yield of 650.degree.-850.degree. F. heavy distillate of zero for the two-stage liquefaction process.

Inventors:

Skinner, Ronald W ^[1]; Tao, John C ^[2]; Znaimer, Samuel ^[3]

Allentown, PA
Perkiomenville, PA
Vancouver, CA

Issue Date:: 1985-01-01

Research Org.:: INTERNATIONAL COAL REFINING CO

OSTI Identifier:: 865301

Patent Number(s):: 4491511

Assignee:: International Coal Refining Company (Allentown, PA)

Patent Classifications (CPCs):: C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS

Show more

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
C10G1/006 - {Combinations of processes provided in groups C10G1/02 - C10G1/08}
C10G1/002 - {in combination with oil conversion- or refining processes}

Show less

DOE Contract Number:: AC05-78OR03054

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: two-stage; coal; liquefaction; process; improved; src-i; improves; product; slate; provided; substantially; net; yield; 650; degree; -850; heavy; distillate; lc-finer; combined; src; solvent; 400; -650; middle; section; hydrocracker; initial; boiling; increased; sufficiently; produce; zero; liquefaction process; coal liquefaction; process solvent; heavy distillate; two-stage coal; stage liquefaction; two-stage liquefaction; stage coal; /208/

Citation Formats


                    Skinner, Ronald W, Tao, John C, and Znaimer, Samuel. Two-stage coal liquefaction process.  United States: N. p., 1985. 
        Web.

Copy to clipboard


                    Skinner, Ronald W, Tao, John C, & Znaimer, Samuel. Two-stage coal liquefaction process.  United States.

Copy to clipboard


                    Skinner, Ronald W, Tao, John C, and Znaimer, Samuel. Tue .  
        "Two-stage coal liquefaction process".  United States.  https://www.osti.gov/servlets/purl/865301.

Copy to clipboard


                    
@article{osti_865301,

  title        = {Two-stage coal liquefaction process},

  author       = {Skinner, Ronald W and Tao, John C and Znaimer, Samuel},

  abstractNote = {An improved SRC-I two-stage coal liquefaction process which improves the product slate is provided. Substantially all of the net yield of 650.degree.-850.degree. F. heavy distillate from the LC-Finer is combined with the SRC process solvent, substantially all of the net 400.degree.-650.degree. F. middle distillate from the SRC section is combined with the hydrocracker solvent in the LC-Finer, and the initial boiling point of the SRC process solvent is increased sufficiently high to produce a net yield of 650.degree.-850.degree. F. heavy distillate of zero for the two-stage liquefaction process.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1985},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Catalytic two-stage coal liquefaction process having improved nitrogen removal

Patent Comolli, Alfred G [Yardley, PA]

A process for catalytic multi-stage hydrogenation and liquefaction of coal to produce high yields of low-boiling hydrocarbon liquids containing low concentrations of nitogen compounds. First stage catalytic reaction conditions are 700.degree.-800.degree. F. temperature, 1500-3500 psig hydrogen partial pressure, with the space velocity maintained in a critical range of 10-40 lb coal/hr ft.sup.3 catalyst settled volume. The first stage catalyst has 0.3-1.2 cc/gm total pore volume with at least 25% of the pore volume in pores having diameters of 200-2000 Angstroms. Second stage reaction conditions are 760.degree.-870.degree. F. temperature with space velocity exceeding that in the first stage reactor, so asmore » « less
Full Text Available
Integrated two-stage coal liquefaction process

Patent Bronfenbrenner, James C [Allentown, PA]; Skinner, Ronald W [Allentown, PA]; Znaimer, Samuel [Vancouver, CA]

This invention relates to an improved two-stage process for the production of liquid carbonaceous fuels and solvents from carbonaceous solid fuels, especially coal.
Full Text Available
Process for coal liquefaction by separation of entrained gases from slurry exiting staged dissolvers

Patent Givens, Edwin N [Bethlehem, PA]; Ying, David H. S. [Macungie, PA]

There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas scrubbing equipment. In the process, coal is slurried with a solvent, passed through a preheater and at least two dissolvers in series in the presence of hydrogen-rich gases at elevated temperatures and pressures. Solids, including mineral ash and unconverted coal macerals are separated from the condensed dissolver effluent. In accordance with the improved process, fresh hydrogen is fed to each dissolver and the entrainedmore » « less
Full Text Available
Process for coal liquefaction in staged dissolvers

Patent Roberts, George W [Emmaus, PA]; Givens, Edwin N [Bethlehem, PA]; Skinner, Ronald W [Allentown, PA]

There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas scrubbing equipment. In the process, coal is slurried with a pasting oil, passed through a preheater and at least two dissolvers in series in the presence of hydrogen-rich gases at elevated temperatures and pressures. Solids, including mineral ash and unconverted coal macerals, are separated from the condensed reactor effluent. In accordance with the improved process, the first dissolver is operated at a higher temperaturemore » « less
Full Text Available
Catalytic two-stage coal hydrogenation process using extinction recycle of heavy liquid fraction

Patent MacArthur, James B [Denville, NJ]; Comolli, Alfred G [Yardley, PA]; McLean, Joseph B [Somerville, NJ]

A process for catalytic two-stage hydrogenation and liquefaction of coal with selective extinction recycle of all heavy liquid fractions boiling above a distillation cut point of about 600.degree.-750.degree. F. to produce increased yields of low-boiling hydrocarbon liquid and gas products. In the process, the particulate coal feed is slurried with a process-derived liquid solvent normally boiling above about 650.degree. F. and fed into a first stage catalytic reaction zone operated at conditions which promote controlled rate liquefaction of the coal, while simultaneously hydrogenating the hydrocarbon recycle oils. The first stage reactor is maintained at 710.degree.-800.degree. F. temperature, 1000-4000 psig hydrogenmore » « less
Full Text Available

Similar Records