38results about How to "Reduce hydrocarbon content" patented technology

The invention relates to an apparatus for separating hydrocarbons from solid particles, wherein the apparatus comprises a slurry inlet for receiving a slurry comprising water, hydrocarbons and solid particles, a water supply for rinsing water, and a slurry outlet. The apparatus further comprises a plurality of nozzles configured to provide rinsing water as droplets with sufficient speed to induce cavitation in the slurry, and separating means for extracting a liquid containing water and hydrocarbons from the slurry and a separate liquid outlet for the extracted liquid.

The double lift pipe catalytic cracking process and apparatus for modifying inferior petrol in petroleum processing aims at reducing the olefin content and sulfur content in petrol greatly. The present invention features that inferior petrol material after contacting with the regenerated catalyst is first upstream reacted in the first reaction area in the petrol lift pipe reactor and then further flowed upwards to diameter expanding structure bed layer reactor in the upper part of the petrol lift pipe reactor for mixing with the catalyst, which is fed through the catalyst conveying pipe and water steam stripped in the stripping section of the second depositor, and reacting. The present invention is used mainly for modifying inferior petrol and can reduce greatly the olefin content and sulfur content in petrol simultaneously. The present invention also discloses relevant double lift pipe catalytic cracking apparatus.

The invention discloses a production method of high-quality low-pour-point diesel. The production method comprises the following steps: (1) adequately mixing a poor-quality diesel raw material with a powdery hydrorefining catalyst in a mixer, so as to obtain a mixed fed material of the catalyst and the raw material diesel; (2) introducing the mixed fed material and hydrogen into a boiling-bed reactor from the bottom of a reactor filled with a hydrodewaxing catalyst, and carrying out hydrogenation reaction; (3) after the reaction of the material containing the powdery hydrorefining catalyst, discharging the material from the top of the boiling-bed reactor, introducing the material into a stable reactor, and carrying out supplementary hydrorefining; and (4) filtering the powdery hydrorefining catalyst from generated diesel, and introducing the diesel into a fractionating system, so as to obtain the high-quality low-pour-point diesel product. By virtue of the method, the yield and cetane number of the diesel are increased when low-pour-point and ultralow-sulfur diesel is produced, the hot-spot temperature of a device is reduced, and the operation cycle is prolonged; and besides, the consumption of cold hydrogen or the fuel gas of a heating furnace is reduced, so that the operation cost is saved.

The present application provides a system and method for recombination of petroleum sludge through synchronized catalysis and cracking, comprising: performing catalysis and cracking on petroleum sludge in a first reaction still, so as to form petroleum gas discharged from the top of the first reaction still and carbon residues deposited in the first reaction still; inputting the petroleum gas into a first dedusting catalytic tower stored with a recombination catalyst; condensing the petroleum gas after catalytic recombination in the first dedusting catalytic tower to form a petroleum-water mixture; separating the petroleum-water mixture by a petroleum-water separation device, and conveying the separated petroleum to a second reaction still to perform secondary cracking and form mixed petroleum gas; and performing dedusting and catalytic recombination on the mixed petroleum gas, condensing the mixed petroleum gas after catalytic recombination to form mixed oil, filtering the mixed petroleum and then performing distillation separation. The present application realizes the recycle of such resources as water, petroleum and combustible gas in petroleum sludge, thereby achieving resource re-utilization and restoring the use value of the original soil.