Heavy oil and biomass hydrogenation coliquefaction treatment process

The invention relates generally to methods for the production of biofuels from organic matter, the methods comprising treating the organic matter with an aqueous solvent and at least one additional catalyst under conditions of heat and pressure. The invention also relates to biofuel products obtainable by the methods.

Methods for Biofuel Production

The invention relates to a method for directly liquefying coals with a function of maximizing utilization of liquefied residues. The method comprises the following technical steps: preparing coal paste; carrying out hydrotreating and liquefaction on the coal paste; carrying out oil separation treatment on the obtained oil product; carrying out upgrading and hydrotreating on the obtained product; carrying out hot extraction on the residues and then carrying out solid-liquid separation on the residues; and recovering the solvent; and carrying out hydrotreating treatment on the mixture of heavy oils and asphalt materials so as to obtain the final product, then taking the heavy oils as recycled solvent to prepare the coal paste, and the like. The method provided by the invention has the advantages that because of organically combining the liquefaction process and the residue extraction, the utilization of liquefied residues is maximized, the conversion rate of coal is improved, the yieldsof light and middle oils subjected to coal liquefaction are improved by 10 to 60 percent, and the quality of oil is improved, thereby greatly enhancing the economic benefits of direct coal liquefaction plants and improving environment protection; and the method provided by the invention has important economic and social significances, and can widely be applied to the field of coal direct liquefaction.

Method for directly liquefying coals with function of maximizing utilization of liquefied residues

The invention discloses a coal-based military fuel and a preparation method thereof. The method comprises the steps of: (1) carrying out distillation cutting on raw oil so as to obtain a light oil fraction and a heavy oil fraction; (2) uniformly mixing a catalyst, a vulcanizing agent and solvent oil so as to prepare catalyst-oil slurry, mixing the catalyst-oil slurry, the heavy oil fraction and circulating oil with the catalyst, carrying out hydrocracking, obtaining a liquid-solid mixture after a reaction product is subjected to separation, and obtaining light oil fraction after the liquid-solid mixture is subjected to separation; and (3) carrying out hydrofining or selective hydrofining on the light oil fraction obtained in the step (1) and the light oil fraction obtained in the step (2), and enabling the obtained oil to enter a fractionating tower for product fractionation after the obtained oil is subjected to cooling and gas-liquid separation, thereby obtaining the military fuel. According to the method, the scope of application is wide, the process flow is reasonable, the raw material utilization ratio is high, the varieties of products are multiple, and the operation is flexible, so that the method can be applied to the mass production of various special oils.

Coal-based military fuel and preparation method thereof

The embodiment of the invention discloses a blood coagulation detection instrument. The instrument comprises a testing mechanism for detecting the elastic force of blood, a sample placing mechanism for placement of blood samples, and a transmission mechanism for operating the testing mechanism to approach or keep away from the sample placing mechanism. According to the blood coagulation detection instrument disclosed by the invention, by adopting magnetic attraction effects, a cup cover is pulled by the traction of a first magnetic force body and a second magnetic force body to stir a blood sample in a stirring cup, and microgenetic complex biological changes in a blood coagulation process are transformed into pulse signals by virtue of a coded disc and a signal transceiver and are acquired and processed to form thrombelastograms, so that a test process is simple to operate, the workload of operators can be reduced, and the cost can be saved.

Blood coagulation detection instrument

The invention relates to the field of coal chemical industry, and more specifically relates to a method of extracting phenolic compounds from coal liquefied oil or coal tar. The method comprises the following steps: 1) distilling coal liquefied oil or coal tar and cutting to obtain fractions at a temperature of 260 DEG C; 2) mixing an extractant with the obtained fractions and layering the extractant; 3) separating and collecting the extractant layer which contains phenolic compounds; 4) carrying out multistage back extraction on the phenolic compounds so as to obtain a stripping agent-phenol solution and an extractant; 5) separating the stripping agent-phenol solution by rectification, recovering the stripping agent for cyclic utilization, and carrying out separation to obtain crude phenols; 6) removing entrained neutral oil in phenolic compounds by water vapour so as to obtain crude phenol products. The method of extracting phenolic compounds from coal liquefied oil or coal tar provided in the invention avoids the usage of soda acid, exerts no influence on subsequent treating processes, and guarantees high recovery rate and purity of phenols.

Method of extracting phenolic compound from coal liquefied oil or coal tar

The invention relates to a bimetal or multi-metal high-dispersion composite coal tar hydrogenation catalyst and a preparation method thereof. The catalyst comprises molecular high-activity components of one or a plurality of mixtures of water-solubility salt compounds of metal from molybdenum, nickel, tungsten or cobalt, nanometer low-activity components gamma-FeOOH grains and micro or sub nanometer carrier pulverized coal, the activity components are uniformly and highly dispersed on the surfaces of the carrier pulverized coal, the catalyst is micro or sub nanometer fine powder and is high in activity, particles of the activity components are small and are highly uniformly dispersed on the surface of a carrier, the utilization quantity of the catalyst is low, cost is reduced, and the bimetal or multi-metal high-dispersion composite coal tar hydrogenation catalyst can be widely applied to coal tar hydrogenation or coal liquefaction.

Bimetal or multi-metal high-dispersion composite coal tar hydrogenation catalyst and preparation method thereof

The invention relates to a coal direct liquefaction method using petroleum or petroleum refining byproducts to replace a cycling solvent, which comprises processes of: replacing or partially replacing the traditional coal liquefied cycling solvent by low quality petroleum with high metal and asphaltene content and heavy oil, as well as petroleum refining byproducts such as catalytic cracking heavy recycle stock, clarified oil and outside throwing slurry oil, preparing coal slurry by co-catalyst sulfur and high-activity Gamma-hydrated iron oxide type liquefaction catalyst, then implementing the coal direct liquefaction and hydrogenation, finally obtaining light and medium distillate oil, the coal conversion is increased by 1 percent to 5 percent, the yield of generated oil products is increased by 5 percent to 40 percent, the sedimentation and coking in a reactor are reduced, also the utilization value of low value-added petroleum and petroleum refining byproducts is greatly increased, and economic benefits of coal direct liquefaction are increased. The method can be widely used for coal direct liquefaction.

Direct liquefaction process of coal by replacing circling solvent with petroleum or petroleum refining byproduct

The invention discloses a high-pressure high-temperature liquid viscosity measuring device and method. The measuring device comprises a high-pressure high-temperature system and a measuring system, wherein the measuring system comprises a driving motor, a torque sensor, a driving magnetic barrel, an induced magnetism barrel, a rotating shaft and a stirring paddle; one end of the torque sensor is connected with the driving motor, the other end of the torque sensor is connected with the driving magnetic barrel, and the driving magnetic barrel rotates along the torque sensor; the induced magnetism barrel is positioned in the driving magnetic barrel and can rotate along the driving magnetic barrel under the magnetic action; one end of the rotating shaft is connected with one end, which is far from the torque sensor, of the induced magnetism barrel, the other end of the rotating shaft is connected with the stirring paddle, and a part of the rotating shaft is positioned in the high-pressure high-temperature system; the stirring paddle is positioned in the high-pressure high-temperature system, and the stirring paddle comprises multiple blades which are symmetrically arranged around the rotating shaft. The measuring device provided by the invention can accurately detect the liquid viscosity under a high-pressure high-temperature condition.

Zhao Peng

Papers

Method of extracting phenolic compound from coal liquefied oil or coal tar

Method for directly liquefying coals with function of maximizing utilization of liquefied residues

Bimetal or multi-metal high-dispersion composite coal tar hydrogenation catalyst and preparation method thereof

Direct liquefaction process of coal by replacing circling solvent with petroleum or petroleum refining byproduct

High-pressure high-temperature liquid viscosity measuring device and method