Showing papers on "Carbochemistry published in 1980"
TL;DR: In this article, the processes of coal liquefaction and co-carbonization of coal/pitch blends in terms of physical and chemical properties of the fluid phases found in both pyrolysis systems are outlined.
90 citations
Patent•
28 Feb 1980
TL;DR: In this article, the Disclosure Combination method for the gasification of coal and the reduction of metal ores involving hydrogenation of coal to produce hydro-carbons and coke component is described.
Abstract: of the Disclosure Combination method for the gasification of coal and the reduction of metal ores involving hydrogenation gasification of coal to produce hydro-carbons and coke component. The coke is subjected to steam gasification and the gas therefrom used to reduce ores. Spent gas from the reduction is treat-ed to convert CO in the gas to H2 and CO2. The CO2 is scrubbed out and the H2 is sent to the hydrogenation gasification to hydrogenate the coal.
3 citations
Patent•
21 Nov 1980
TL;DR: In this paper, a pitch-like product with a softening point of 90°-160° C was used to improve the coke quality of coal by treating coal or other carbon containing raw material with hydrocarbon solvents.
Abstract: Upgrading coke quality of coals by adding a pitch-like product with a softening point (K-S) of 90°-160° C. to the coal. The additive is obtained by treating finely divided coal or other carbon containing raw material with hydrocarbon solvents derived from coal and petroleum and then removing 2-20% of the light boiling components of the highly aromatic pitch-like product.
1 citations
1 citations
14 Oct 1980
1 citations
01 Jan 1980
TL;DR: In this paper, the utilization of carbonaceous residues and inorganic residues is discussed, and coal char is considered as a byproduct or residue of many coal processing operations, which can be used in situ as a process fuel, as a source of hydrogen through gasification and as a means for electric power generation.
Abstract: This chapter focuses on the utilization of carbonaceous residues and inorganic residues. Carbonaceous residues usually result from carbonization operations, coal liquefaction processes and, depending upon the severity of treatment, some gasification processes. The ultimate residue after coal is subjected to complete gasification or combustion is mainly inorganic in nature. The chapter discusses the carbonization of coal liquefaction residues at atmospheric pressure and at elevated pressure. Coal char, which are conventionally regarded as the main product of coal carbonization, can be considered as a by-product, or residue, of many of the coal processing operations. Profitable use of this by-product can contribute toward coal processing economics. Suggestions have included its use in situ as a process fuel, as a source of hydrogen through gasification, and as a means for electric power generation. Carbonaceous residues from the various processes are by no means identical in form; in fact, residues from one and the same process might vary at ambient temperature from a rock hard solid to a liquid.