A few questions regarding atmospheric and vacuum distillation
Thread Content
We process heavy crude oil here, and the problem of salt deposition causing blockages is severe. Have you all encountered this issue? How to solve it?
Blow with steam; the heat supply temperature is too low
Is the electrodialysis turned on properly? Has water been injected at the top of the tower?
Desalting heavy oil is inherently a challenging task
Who is the best in high-pressure solenoid valves? Exclusive agent in Shenzhen: Deteng Mechanical & Electrical Equipment Co., Ltd., for Clark Cooper Company in the United States ； The high-pressure solenoid valve ensures zero leakage; it is of direct-acting type, features a plug-shaped sealing structure, is made of 316SS for its valve body, and uses PEEK and FFKM as sealing materials. It can handle pressures of 10,000 PSI = 68.9 MPa, as well as 15,000 PSI = 103.4 MPa = 1034 bar. It is particularly suitable for extreme temperatures, with an operating range of -254°C to 300°C℃
1. Is the salt content of the crude oil after dehydration within the controlled range? 2. Should the neutralizing agent used at the tower top be changed to organic ammonia? 3. Is water injection at the tower top in normal operation? 4. Is the iron ion content in the acidic water of the tower top reflux tank within the controlled range? If there are no issues with the above items, it is recommended to add water injection points before lowering the crystallization temperature of the first-line ammonium salts.
Salt formation can only occur in the upper part of the initial distillation tower. Other reasons for this issue can be found in various aspects, such as whether there are disruptions in the composition of the crude oil, stuck valve cores, or deviations in the actuators of the instruments, and so on
The electrodialysis at the source must be properly operated; if salt formation occurs even at the first stage, the situation in the upper part of the atmospheric pressure tower will be even worse.
The electrodialysis at the source must be properly operated; if salt formation occurs even at the first stage, the situation in the upper part of the atmospheric pressure tower will be even worse.