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Patent Searching and Data


Matches 401 - 450 out of 466

Document Document Title
JPS59157181A
PURPOSE: To produce the titled substance without causing coking troubles, by thermally cracking a heavy oil successively with an externally heated tubular reactor and a continuous completely mixing tank reactor, separating the cracked pr...  
JPS5927788B2  
JPS5925886A
PURPOSE: To obtain a thermal cracked oil in high yield, by thermally cracking a heavy oil at a high temperature in the first stage, taking out the resultant thermal cracked oil and decomposition residue, thermally cracking the thermal cr...  
JPS594475B2  
JPS593507B2  
JPS591430B2  
JPS58223602A
PURPOSE: To carry out the steam reforming of heavy oil in high efficiency and to obtain hydrogen-rich gas, by connecting plural sets of thermal cracker and reformer in series, and supplying the most part of the reforming steam to the fir...  
JPS58213086A  
JPS5851980B2  
JPS58196293A
PURPOSE: To obtain efficiently and inexpensively optical anisotropic pitch having a low softening point to prepare carbon products, by adding a specific hydrocarbon fraction(mixture) to residual oil of a catalytic cracking device, subjec...  
JPS5850278B2  
JPS58171479A  
JPS58142979A  
JPS5874786A
PURPOSE: To provide raw pitch for carbon fiber, which gives a carbon fiber having a high modulus and a high strength, by heat-treating a specified mixture consisting of a fraction and heavy oil obtd. by the steam cracking of petroleum an...  
JPS5871990A
PURPOSE: A pitch that is prepared by adding a specific amount of wax to a specific heavy oil resulted from steam cracking of petroleum and treating the product with heat, thus inhibiting the formation of substances infusible and insolubl...  
JPS5849788A
PURPOSE: In cracking thermally a heavy oil by a fluidized bed for circulating coke as a heating medium, to balance the equilibrium in charge and discharge of the coke in the fluidized bed, by cracking thermally and subjecting a coke- con...  
JPS582385A  
JPS5757073B2  
JPS5753837B2  
JPS5747230B2  
JPS5746477B2  
JPS57100191A
PURPOSE: To improve the efficiency in the preparation of the titled raw material, by distilling a specific petroleum fraction, obtaining the raw material oil as an overhead or intermediate fraction, simultaneously heat-treating the botto...  
JPS5715796B2  
JPS5715795B2  
JPS574680B2  
JPS56167787A  
JPS56127687A
PURPOSE: To carry out the catalytic cracking of heavy oil to light oil and an olefin- rich fraction, in high yield, without producing tar, pitch, etc., by adding a low- activity catalyst to the heavy oil, and heating under specific condi...  
JPS5698285A  
JPS5679183A
PURPOSE: To reformed gas resulting from a low-temperature steam reformation is treated with a specific and simple porcess to produce a gas containing hydrogen for desulfurization, thus permitting operations even under such conditions as ...  
JPS5624488A
PURPOSE: To crack heavy paraffin and to obtain high-quality pitch for a binder, by adding silica-alumina-based granules, etc. as a catalyst for catalytic cracking to petroleum having a high content of heavy paraffin, followed by heat-tre...  
JPS565797B1  
JPS55102690A
PURPOSE: To make aliphatic hydrocarbon heavy oil (H) into useful materials, e.g. binder, lubricant, and raw materials for gasoline, by heat-treating H in the first stage, and by heat-treating the respective layers, separated from the res...  
JPS5512185A  
JPS5512186A  
JPS5415444B2  
JPS5461206A  
JPS5455005A
PURPOSE: To prevent the clogging of device due to the by-product pitch and coke, to reduce the hydrogen consumption ratio, and to obtain good-quality light oil, by performing the thermal cracking reaction and pitch formation in two stage...  
JPS5429302A  
JPS5343963B2  
JPS53119917A  
JPS53119903A
PURPOSE: In thermal cracking of heavy petroleum oil by transfering the oil through a plurality of reactors arranged in series the temperatures are made down as proceeding toward down-stream to produce pitch and light oil fraction with hi...  
JPS5397003A
PURPOSE: To prevent rapid temperature increase of heavy oil in cracking reactors of an oil-cracking facility comprising one heating furnace and a plurality of cracking reactors, by charging the reactors with a small amount of the heavy o...  
JPS5321004B2  
JPS5352507A
PURPOSE: To provide a simple process to produce high-calorific gas and binder pitch simultaneously, by the cracking and polycondensation of hot heavy oil with steam.  
JPS5345303A
PURPOSE: To obtain a decomposition gas and a light oil free from heavy metals and carbon residues from coal and heavy oils with efficiency, by theremal reforming of a mixture of coal and heavy oils to form gaseous substances and cokes, a...  
JPS5334801A  
JPS5291004A  
JPS5278903A  
JPS5268207A
PURPOSE: An efficient method for preparing fuel gas containing little carbon dioxide by the gasification of raw heavy oil by the combination of partial oxidation reaction and steam catalytic reforming reaction.  
JPS5257204A
PURPOSE: To obtain a fuel gas of low CO2 content with little deposition of carbonaceous materials by the catalytic decomposition of heavy residue, especially vacuum distillation residue with fluidized beds.  

Matches 401 - 450 out of 466