Hurricane system to reduce PM from Syngas emanating from a gasifier with a 425m3/h gas flow rate at 160ºC.

  • The system is composed by 1 hurricane cyclone
  • Efficiency is expected to reach 99.5% with a pressure drop of 1.7 kPa.
  • Expected emissions: 36mg/Nm3
Anguil
USA
2012
Hurricane HR Cyclones to Reducte Off-Gases From A Meat And Bones Mixture Gasifier At High Temperature.
Hurricane HR cyclones to reducte off-gases from a meat and bones mixture gasifier at CARECO ( 18.000 m3/h at 700ºC )
Actual flow rate ( m3/h ) [18 000]
Inlet concentration ( mg/Nm3dry ) [13 820]
Gas flow temperature (ºC) [700]
Careco | Luis Leal S.A.
Portugal
2013
Hurricane
Numerically optimized cyclones, considering particle agglomeration
Numerically optimized cyclones, considering particle agglomeration Hurricane lines of cyclones can be optimized to be a high efficiency pre-separator to reduce ash and char, but also to serve as a final stage dedusting system.


ACS has experience in several gasification applications, including animal corpses (MVD=8.5µm; µ=95%), wood (MVD=100µm; µ=98%) and wood waste (MVD=50µm; µ=99,5%).


In gasification lines, concerns have to be taken regarding the peripheral equipment, namely rotary valves (ATEX certified) or sealing with water, so that 100% tightness is achieved, avoiding false air entries (and O2). 

  • Very high efficiencies: down to 10-20% of the emissions of other high efficiency cyclones;
  • Custom designs (single or parallel arrangement)
  • Low pressure drop: [100 - 150]mm w.g.
  • No temperature restrictions with the right choice of steel, depending on the temperature: Carbon Steel - P355NH Steel - 16M03 Steel - 253MA Steel
  • Robust construction with no moving parts
  • Near zero maintenance and downtime costs
  • Very low operating costs
  • Pre-assembled modular system with very easy and fast installation. Batteries of 2, 4, 6 or 8 cyclones are shipped pre-assembled in a supporting structure with or without thermal insulation.
  • Low investment cost
1. Air and Dust from Dryer or Boiler
2. Hurricane Cyclone
3. Valve
4. Collected Particles
5. Clean Air
ReCyclone MH
Optimized cyclones with mechanical recirculation

Mechanical ReCyclone Systems (ReCyclone MH) are a solution to improve cyclone efficiency, when working as a final dedusting system. They can work with several lines of Hurricane cyclones with different performances depending on the requests of the clients.


A ReCyclone® MH decreases emissions of Hurricane cyclones alone by 40 to 60 %


As with cyclone systems, ReCyclone® MH systems are very robust, do not have temperature limitations and do not have moving parts to be frequently changed.


In gasification lines, concerns have to be taken regarding the peripheral equipment, namely recirculation fan and rotary valves (ATEX certified) so that 100% tightness is achieved, avoiding false air entries (and O2).

  • Very high efficiencies: decreases emissions of Hurricane Cyclones by [40-60]%
  • Pressure drop: [150-220]mm w. g.
  • No temperature restrictions with the right choice of steel, depending on the temperature: Carbon Steel - P355NH Steel - 16M03 Steel - 253MA Steel
  • Robust construction with no moving parts
  • Near zero maintenance and downtime costs
  • Low operating costs
  • Pre-assembled modular system with very easy and fast installation. Batteries of 2, 4, 6 or 8 cyclones or mechanical recirculators are shipped pre-assembled in a supporting structure with or without thermal insulation.
  • Low investment cost
Features

1. Air and dust from boiler or dryer
2. Hurricane cyclone ( Batteries of 2, 4, 6 or 8 units )
3. Discharge valve
4. Collected Particles
5. Clean air
6. Recirculator
7. Fan

Note: supporting structure, insulation and ductwork are not represented
Pyrolisis, Incineration and Gasification

For PM emission control in very high temperature exhaust streams ( >600ºC ), such as gasification, pyrolysis and incineration, traditional bag filters following temperature exchangers, ceramic filters, or scrubbers are used as end stage dedusters.


For most arrangements, a primary high temperature separator, namely a cyclone, is important to reduce as much ash and char as possible. A good efficiency is important to reduce concentration of solids to the final stage dedusters, avoiding plugging of scrubbers and damaging of filters.


Most arrangements have considerable investment and operation costs. Traditional bag filters imply the frequent change of bags and a high investment in temperature exchangers. Ceramic filters can withstand high temperatures but have a considerable pressure drop, typically up to 300mm w.g., gradually increasing due to clogging of the pores. The long-term durability and cracking risk (mainly during cleaning) of the elements are also critical.


Client's needs include an efficient and robust cyclone pre-separator and a very high efficient final stage dedusting system, which can operate at high temperatures with low maintenance/operating costs. 

Pyrolisis, Incineration & Gasification
Pyrolisis, Incineration & Gasification
Pyrolisis, Incineration & Gasification
Pyrolisis, Incineration & Gasification
Gasification General Arrangement
The general arrangement of a gasification plant includes a primary high temperature separator to reduce ash and char, and a scrubber with or without another final stage dedusting system downstream.
The Median Volume Diameter (MVD) of the particles coming from gasifiers is very variable, depending on the material to be gasified and the on the gasifier, ranging from 9µm to more than 30µm.