A combined treatment process and device for ionic liquid alkylation wastewater and waste residue
A combined treatment and alkylation technology, applied in water/sewage multi-stage treatment, degassed water/sewage treatment, neutralized water/sewage treatment, etc. The problem of high cost, to achieve the effect of short process flow, small number of equipment and low operating cost
Active Publication Date: 2021-01-12
大连汉诺工程技术有限公司
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Problems solved by technology
This wastewater treatment method does not realize the graded utilization of sewage, waste residue treatment is the transfer of pollution sources, the treatment cost is high, and there are many uncontrollable factors
Method used
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[0035] Such as figure 1 As shown, a combined treatment device for ionic liquid alkylation wastewater and waste slag provided in this embodiment is characterized in that it includes a screw conveyor 1 that is connected to the waste residue A to be treated at the feed port, and the discharge port of the screw conveyor 1 The Venturi mixer 3, the delayed cooling reactor 4, and the digestion tank 5 are connected in turn through the sludge discharge angle valve 2. The delayed cooling reactor 4 includes coiled tubes with two ends respectively being the feed inlet and the discharge port, and the coiled tubes are located at In the cooling water tank, the upper part of the delayed cooling reactor 4 is provided with a discharge port D1. The bottom of the digestion tank 5 is respectively connected to the feed inlet of the circulating lye pump 7 and the sewage settling tank 11, and the middle part of the digestion tank 5 is also communicated with the top of the sewage settling tank 11 thro...
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The invention discloses an ion liquid alkylation waste water and waste residue combined treatment process and device. The device comprises a screw conveyor, a recycle alkaline pump, a venturi mixer, adelay cooling reactor, a digestion tank, an ASO storage tank, a sewage sedimentation groove, a water-sealed tank, an ASO pump, a filter feeding pump, a filtering device, a sludge box, a sewage collection pool, a sewage pump and the like. The treatment process comprises four steps of catalyst digestion-oil-water separation, sewage sedimentation-filtration, ASO degasfication-storage and sewage discharge and collection. According to the ion liquid alkylation waste water and waste residue combined treatment process and device, alkaline waste water is adopted to neutralize acidsluge, the operationcost is low, the technical process is short, the investment cost is low, full-automatic operation is conducted in the whole process, after treatment, solid waste reduced, oil products are recycled, and the sewage is discharged into a sewage treatment plant.
Description
technical field [0001] The present invention relates to an environmentally friendly production method for the combined treatment of wastewater from ionic liquid alkylation in a refinery and waste residues from equilibrium catalysts, in particular to a new process and device for treating wastewater and waste residues from ionic liquid alkylation devices to achieve graded utilization of sewage and solid waste The waste reduction belongs to the technical field of alkylation engineering. Background technique [0002] At present, the wastewater discharged from the ionic liquid alkylation unit under construction in China includes alkali washing water and water washing water. The waste residue is the muddy solid residue separated by extraction and filtration of the balanced ionic liquid catalyst. The properties of the waste water and waste residue are shown in Table 1. Show. [0003] Table 1 Wastewater and waste residue discharge table [0004] [0005] At present, the waste w...
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IPC IPC(8): C02F9/04C02F11/00C02F101/20
CPCC02F1/001C02F1/20C02F1/40C02F1/66C02F9/00C02F11/00C02F2001/007C02F2101/20
Inventor 田晓良
Owner 大连汉诺工程技术有限公司