219results about How to "Suppress formation" patented technology

Disclosed is a combined process for hydrotreating and catalytic cracking of residue, wherein the residue, catalytic cracking heavy cycle oil with acidic solid impurity being removed, optional distillate oil and adistillate of catalytic cracking slurry oil from which the acidic solid impurity is removed are fed into residue hydrotreating unit, the hydrogenated residue obtained and optional vacuum gas oil are fed into catalytic cracking unit to obtain various products; the catalytic cracking heavy cycle oil from which the acidic solid impurity is removed is circulated to the residue hydrotreating unit; the catalytic cracking slurry oil is separated by distilling, the distillate of the catalytic cracking slurry oil after removing off the acidic solid impurity is circulated to the residue hydrotreating unit. This process makes the residue hydrotreating and catalytic cracking being combined together more effectively such that it is not only able to improve product quality of the residue hydrotreating, elongate operation cycle of the residue hydrotreating unit, but also increases the yield of the hydrogenated diesel oil and catalytic cracking light oil, and decreases coking quantity of the catalytic cracking.

A cement jacket for a cemented artificial joint stem, the cement jacket including a main body with a hollow interior and an open upper end for receiving and enclosing at least a part of a stem of an artificial joint, the cement jacket being shaped and adapted for longitudinal insertion in an opening formed in a bone canal of a human body, the cement jacket being made of cement and reinforced by imbedded wire or fiber and having an inner surface coated with a plastic film having a high resistance to abrasion, and the outer surface of the cement jacket is formed with discharging paths in the longitudinal direction so that excessive cement paste previously poured into the bone canal for the surgical purpose can be easily discharged upward at the time of inserting the jacket.

An image display including light emission controller provided with a transmissive portion and a shielding portion extending in a second direction intersecting with a first direction connecting the left and right eyes of an observer with each other for transmitting and blocking light irradiated from a light source respectively and capable of changing the length of the transmissive portion and the shielding portion in the first direction and a lens including at least one lens portion formed to advance the light received from the light source through the transmissive portion of the light emission controller in a prescribed direction and to extend in the second direction.