In one embodiment, a method for producing coke that includes mixing at least a first and a second carbonaceous material into a single feedstock of carbonaceous material. The coking feasibility of the single feedstock of carbonaceous material is then determined. The single feedstock is customized into a predetermined material composition, and then the customized single feedstock is pyrolyzed to produce coke material and coke by-products. Other embodiments are also disclosed.

An operating guide system of a plant utilizing coal gasification includes a performance analyzer for analyzing performance of the plant by analyzing gasifier performance and synthesis gas cooler performance during an operation of the plant; an operation guide generator for generating an operation guide indicating control values for the operation of the plant based on the performance analysis of the plant; an action guide generator for generating an action guide indicating control values for controlling the plant to prevent an abnormal situation predicted in the plant based on the performance analysis of the plant; and a fuel determiner for determining gasification suitability of an analysis target fuel selected by a user before the plant is started, the gasification suitability including basic suitability and suitability of slag behavior.

Embodiments described herein provide for the flameless premixed combustion of the pyrolysis gases of a milligram-sized sample of solid material in a microscale fire calorimeter (MFC) at high temperatures of combustion and under precisely controlled fuel-to-oxygen ratios. The microscale fire calorimeter (MFC) device and techniques set out herein provide for the generation of fuel gases from solids and the mixing of those fuel gases with oxygen under controlled conditions to obtain precise fuel/oxygen ratios during combustion. Combustion is conducted under flameless, premixed conditions in a rapid test that can generate soot and other products of incomplete combustion, which may then be analyzed to determine their type and nature. This allows for microscale, accurate, and convenient techniques for the generation and determination of the type and nature of combustion species produced over the full range of fire stages from early stage (over-ventilated) fires to late-stage (under-ventilated/high-toxicity) fires.

A method for non-destructively determining a mechanical property of a solid rocket motor propellant grain may comprise applying a force to a surface of the solid rocket motor propellant grain, wherein a deformation is formed on the surface of the solid rocket motor propellant grain in response to the applying, and calculating a value of the mechanical property of the solid rocket motor propellant grain based on the deformation. This process may be performed over time to determine a lifespan of the propellant grain.

A method for non-destructively determining a mechanical property of a solid rocket motor propellant grain may comprise applying, via a gas, a force to a surface of the solid rocket motor propellant grain, wherein a deformation is formed on the surface of the solid rocket motor propellant grain in response to the applying, and measuring a pressure of the gas. This process may be performed over time to determine a lifespan of the propellant grain.

In order to evaluate the compatibility of coals used in coke production and to produce cokes with desired strength by blending coals in consideration of the compatibility, the invention provides a technique which evaluates the adhesion strength obtained when two kinds of coals are carbonized based. on properties of the coals. Surface tensions of two kinds of semicokes obtained by heat treating two kinds of coals are measured. Based on the difference between the two measured values of surface tension, the quality of the adhesiveness between the two kinds of coals is evaluated.

Specialized linkage assemblies for Laser-Induced Breakdown Spectroscopy (LIBS) systems are provided. The linkage assemblies may facilitate the attachment of the laser housing of the LIBS system onto an existing sample supply chamber, such as a volumetric or gravimetric feeder. Generally, the linkage assemblies may comprise a specialized purge head and inert gas assembly that facilitate the attachment of the laser housing and may enhance the functionality of the LIBS system.

The present invention relates to a method for detecting moisture and volatile matter content in raw coal using the value of baseline drift, comprising the following steps: selecting a plurality of types of standard coal having different coal ranks and different ash contents, performing a Raman spectroscopy test and a proximate analysis on each type of standard coal, calculating the value of baseline drift in the Raman spectrum, and setting up the mapping relationship between the value of baseline drift in the Raman spectrum and the characteristic parameters of the moisture and the volatile matter content. The same method and reference are used to perform a Raman spectroscopy test on raw coal to be tested, so as to calculate the value of baseline drift in a Raman spectrum of the raw coal to be tested, and obtain the moisture and volatile matter content of the raw coal to be tested.

A method for accurately measuring the thermoplasticity of a coal whose thermoplasticity has been difficult to evaluate and determining whether the coal that is to be measured does not significantly reduce the coke strength when used for a coal blend is disclosed. Also disclosed is a method for evaluating a coal used as a raw material for coke and includes using a physical property value relating to a thermoplasticity of a coal as an index for evaluating the coal, wherein a primary or secondary amine including an aromatic ring have been added to the coal, thereby enhancing the thermoplasticity of the coal.

An apparatus and method predict an initial deformation temperature of coal without an additional test by using a predictive model. The apparatus includes a parameter extractor configured to analyze characteristics of test coal and to extract parameters of the test coal based on the test coal characteristic analysis; a temperature analyzer configured to analyze an initial deformation temperature (IDT) of the test coal; a modeler configured to derive an IDT predictive model for predicting the test coal IDT using the extracted parameters of the test coal and the test coal IDT; and a predictor configured to predict an initial deformation temperature (IDT) of target coal to be supplied to the coal-fired power plant by substituting parameters of the target coal into the IDT predictive model. The test coal characteristics are analyzed by ash component analysis, elementary analysis, industrial analysis, or calorific value analysis.