On July 26, the author learned from lanzhou petrochemical refinery running a that 200000 tons/year after regeneration unit overhaul drive of sulfuric acid alkylation unit load of 100%, waste acid treatment was 1.8 tons/hour, regenerated acid concentration reached to 95.89%. This shows that the sulfuric acid alkylation research effective regeneration technology, realized the "sulphuric acid regeneration unit run at full capacity for a long period of time, improve the ability of handling sulphuric acid regeneration" target, increase benefits created favorable conditions for the enterprise.
Lanzhou petrochemical 200000 tons/year sulfuric acid alkylation unit regeneration unit in the long run, a "short running period, acid regeneration capacity decline" wait for a phenomenon, affecting the device efficiency continue to improve. Company research, further promotes mass reinforcement process change management operation, for the smooth operation of the device and quality, and the work efficiency to provide strong technical support. To thoroughly solve the problem existed in device, the company organized a good soldier will, overcome the outbreak, successively in ningxia petrochemical, urumqi petrochemical, the two sets of the same type sulphuric acid regeneration unit operation for field trips. Technical personnel on the basis of in-depth study and communication with brother unit, discusses the problems existing in the device, and repeated proof and lanzhou the engineering co., LTD, established to promote the optimization of plant operation a series solutions, in order to promote the overall level of alkylation devices laid a foundation.
Using 200000 tons/year sulfuric acid alkylation unit during the regeneration unit breakdown maintenance, lanzhou petrochemical group human is established according to the optimization of the scheme, eliminates the fan of K - 920 funnelled, updated the K - 930, K - 950 fan, and adjust production process is optimized. On June 21, sulphuric acid regeneration unit overhaul after drive, all kinds of machine pump as well. 200000 tons/year alkylation unit since starting in December last year, a total of 3744 hours, processing alkylation waste sulfuric acid 4970 tons, 4819 tons of sulfuric acid production of renewable waste acid inventory down effectively. (YueXin Chen)
