摘要:
The invention relates to a short-flow process for desulfurization of circulating hydrogen and a device for the same. A short-flow process for desulfurization of circulating hydrogen is provided, comprising: (a) removing hydrocarbons from the circulating hydrogen mixture, so that the liquid drops of the heavy hydrocarbons in the dispersion phase are separated from the circulating hydrogen in the continuous phase, and a heavy hydrocarbon phase and a mixture phase of circulating hydrogen containing sulfur are obtained; (b) further separating the resultant mixture phase to remove the sulfides therein, so that circulating hydrogen without sulfur is obtained; (c) further separating the resultant circulating hydrogen without sulfur to remove the amine solution therein, so that purified circulating hydrogen is obtained. The invention also provides a device for desulfurization of circulating hydrogen.
摘要:
The invention relates to a short-flow process for desulfurization of circulating hydrogen and a device for the same. A short-flow process for desulfurization of circulating hydrogen is provided, comprising: (a) removing hydrocarbons from the circulating hydrogen mixture, so that the liquid drops of the heavy hydrocarbons in the dispersion phase are separated from the circulating hydrogen in the continuous phase, and a heavy hydrocarbon phase and a mixture phase of circulating hydrogen containing sulfur are obtained; (b) further separating the resultant mixture phase to remove the sulfides therein, so that circulating hydrogen without sulfur is obtained; (c) further separating the resultant circulating hydrogen without sulfur to remove the amine solution therein, so that purified circulating hydrogen is obtained. The invention also provides a device for desulfurization of circulating hydrogen.
摘要:
The invention relates to a process and a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil. Provided is a process for treating a catalyst discharged from bubbling bed hydrogenation of residual oil, comprising the following steps: (1) adjustment and control to reduce viscosity; (2) desorption and separation by rotational flow; and (3) separation and resource utilization of an oil-water-catalyst three phase. Also provided is a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil.
摘要:
The invention relates to a process and a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil. Provided is a process for treating a catalyst discharged from bubbling bed hydrogenation of residual oil, comprising the following steps: (1) adjustment and control to reduce viscosity; (2) desorption and separation by rotational flow; and (3) separation and resource utilization of an oil-water-catalyst three phase. Also provided is a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil.
摘要:
The invention relates to a process and an apparatus for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder. In particular, the invention provides a process for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder, comprising (a) scrubbing, purifying and cooling the MTO reaction gas containing catalyst fine powder, and separating and recovering the mist entrained in the scrubbed reaction gas and the catalyst fine powder that is not scrubbed off; (b) subjecting the scrubbing liquid containing catalyst fine powder to solid-liquid separation, and the purified scrubbing liquid after separation to repeated use after subsequent heat exchange and stripping treatment; and (c) subjecting the scrubbing liquid containing catalyst fine powder to solid-liquid separation, and further concentrating the scrubbing liquid containing catalyst fine powder after separation before the catalyst fine powder is finally recovered in solid form by centrifugal dewatering or drying. The invention also provides an apparatus for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder.
摘要:
A process and an apparatus for separating and recovering waste alkali from a cyclohexane oxidation solution are provided. A gradient combination of the gravity separation technique, the vortex separation technique and the coalescence separation technique is used to carry out fine separation of the waste alkali liquor from the cyclohexane oxidation solution. The purified cyclohexane oxidation solution is fed into a down-stream apparatus. Most of the waste alkali liquor thus separated is recycled, while the remaining is expelled. The expelled waste alkali liquor is incinerated in an incinerator, followed by recovering the molten species using a pneumatic pulverization process.
摘要:
The present invention relates to a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution, and provides a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution. According to the invention, a gradient combination of the gravity separation technique, the vortex separation technique and the coalescence separation technique is used to carry out fine separation of the waste alkali liquor from the cyclohexane oxidation solution. The purified cyclohexane oxidation solution is fed into a down-stream apparatus. Most of the waste alkali liquor thus separated is recycled, while the remaining is expelled. The expelled waste alkali liquor is incinerated in an incinerator, followed by recovering the molten species using a pneumatic pulverization process. According to the invention, the content of Na+ in the cyclohexane oxidation solution fed into the alkane tower can be lowered to less than 3 mg/L, and the molten species resulting from incineration can be recovered 100%. Thus, risk of environmental pollution by the waste alkali liquor is substantially eliminated. While the invention is well suited to separate and recover the waste alkali liquor from a cyclohexane oxidation solution, it may be adapted to other chemical engineering systems for separating and recovering waste alkali liquor as well.
摘要:
The invention provides a method for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation, comprising: removing the entrapped catalyst particles from the MTO quench water via mini-hydrocyclone separation; cooling the quench water purified by mini-hydrocyclone separation so as to effect the recycling of water; removing the entrapped catalyst particles from the MTO quench water to be stripped via mini-hydrocyclone separation, so as to reduce the deposition of the catalyst particles within the stripping tower; removing the entrapped catalyst particles from the MTO scrubbing water via mini-hydrocyclone separation; and cooling the scrubbing water purified via mini-hydrocyclone separation so as to effect the recycling of water. The invention also provides an apparatus for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation.
摘要:
The invention provides a method for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation, comprising: removing the entrapped catalyst particles from the MTO quench water via mini-hydrocyclone separation; cooling the quench water purified by mini-hydrocyclone separation so as to effect the recycling of water; removing the entrapped catalyst particles from the MTO quench water to be stripped via mini-hydrocyclone separation, so as to reduce the deposition of the catalyst particles within the stripping tower; removing the entrapped catalyst particles from the MTO scrubbing water via mini-hydrocyclone separation; and cooling the scrubbing water purified via mini-hydrocyclone separation so as to effect the recycling of water. The invention also provides an apparatus for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation.
摘要:
Provided are a method and an apparatus for micro-hydrocyclone purification for a flue gas carbon dioxide capture system. The method comprises: performing gas-liquid micro-hydrocylone separation with ultralow pressure drop on scrubbed flue gas, to remove aerosol particulates entrained in the flue gas; performing gas-liquid micro hydrocyclone separation with ultralow pressure drop on off-gas vented from the top of an absorption column, to remove entrained aerosol particulates; performing gas-liquid micro hydrocyclone separation with ultralow pressure drop on cooled regeneration gas, to remove entrained aerosol particulates; and performing liquid-solid and liquid-liquid two-stage micro-hydrocyclone separation on a mixed amine solution lean for carbon dioxide discharged from regeneration column, to remove entrained solid particulates and machine oil. The apparatus comprises: a water scrubbing column, rotation flow separators, liquid-solid micro-hydrocyclone separator sets, a water scrubbing tank, a absorption column, a regeneration column, liquid-solid micro-hydrocyclones and liquid-liquid micro-hydrocyclones.