Abstract: In a natural gas dehydration system, a heat exchanger has first and second passages in thermal communication but fluidly isolated from each other. A pressure reduction valve receives a first stream of natural gas and water vapor from the first passage and outputs a reduced temperature and pressure first stream to a separator which separates at least part of the water from the first stream to form a second stream of natural gas and water vapor that is output via the second passage to a distribution pipeline or a storage system. A temperature sensor senses a temperature of the first stream and a controller controls a valve coupled in parallel with the second passage to be in an open or closed state for passage or blocking of at least part of the second stream therethrough based on a temperature of the first stream determined by the temperature sensor.

Abstract: In a natural gas dehydration system, a heat exchanger has first and second passages in thermal communication but fluidly isolated from each other. An eductor pump combines a first stream of natural gas and water vapor from the first passage with a second stream of natural gas and water vapor to form a third stream of natural gas and condensed water, water vapor, or both that is provided to a separator which separates at least part of the water from the third stream to form a fourth stream of natural gas and water vapor that is output via the second passage to a distribution pipeline or a storage system.

Abstract: In a natural gas dehydration system and method, a first stream of natural gas and water vapor having a first pressure and a first temperature is mixed with a second stream of natural gas and water vapor having a second, lower pressure than the first pressure and a second temperature to form a third stream of natural gas and water vapor. The pressure and temperature of the third stream is then reduced and at least part of the water is separated from the third stream to form a fourth stream of natural gas and water vapor having a lower water vapor content than the third stream. In response to a temperature of the third stream being above a predetermined temperature, causing the fourth stream to extract heat from the first stream prior mixing the first and second streams. Then, the fourth stream is flowed to a distribution pipeline or a storage system.