English to Russian Tech/Engineering Petroleum Eng/Sci

For each flare system it is necessary to establish the maximum quantity of waste gas, which can be handled. It is also required to establish the minimum quantity of pilot and purge gas to ensure safe, stable operation and readiness to take the maximum quantity of waste gas.
There is need to measure of pilot, purge and vent gas to the flare. The composition and sulphur should be determined. After establishing base data, the refineries should aim towards using essentially pilot and purge gases in the flare.
Under this condition the flare should be completely smokeless. The above may be achieved by a combination of the following techniques:
(i) Reducing relief gas to flare by management/good housekeeping practices;
(ii) Balancing the refinery fuel gas system;
(iii) Installing a gas recovery system;
(iv) Using high integrity relief valves; and
(v) Applying advanced process control